Introduce new helper type for acting as a liason between rtvi messages and the llm

This somewhat parallels the helper system the RTVI clients have.

CHANGELOG.md

@@ -9,9 +9,41 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
+- Added a new iOS client option to the `SmallWebRTCTransport` **video-transform** example.
+
+- Added new processors `ProducerProcessor` and `ConsumerProcessor`. The
+  producer processor processes frames from the pipeline and decides whether the
+  consumers should consume it or not. If so, the same frame that is received by
+  the producer is sent to the consumer. There can be multiple consumers per
+  producer. These processors can be useful to push frames from one part of a
+  pipeline to a different one (e.g. when using `ParallelPipeline`).
+
+- Improvements for the `SmallWebRTCTransport`:
+  - Wait until the pipeline is ready before triggering the `connected` event.
+  - Queue messages if the data channel is not ready.
+  - Update the aiortc dependency to fix an issue where the 'video/rtx' MIME
+    type was incorrectly handled as a codec retransmission.
+  - Avoid initial video delays.
+
+### Fixed
+
+- Fixed an issue in the Azure TTS services where the language was being set
+  incorrectly.
+
+- Fixed `SmallWebRTCTransport` to support dynamic values for
+  `TransportParams.audio_out_10ms_chunks`. Previously, it only worked with 20ms
+  chunks.
+
+- Fixed an issue where `LLMAssistantContextAggregator` would prevent a
+  `BotStoppedSpeakingFrame` from moving through the pipeline.
+
+## [0.0.62] - 2025-04-01 "An April Fools' release"
+
+### Added
+
 - Added `TransportParams.audio_out_10ms_chunks` parameter to allow controlling
-  the amount of audio being sent by the output transport. It defaults to 2, so
-  20ms audio chunks are sent.
+  the amount of audio being sent by the output transport. It defaults to 4, so
+  40ms audio chunks are sent.
 
 - Added `QwenLLMService` for Qwen integration with an OpenAI-compatible
   interface. Added foundational example `14q-function-calling-qwen.py`.
@@ -98,6 +130,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Fixed
 
+- Fixed a `FastAPIWebsocketTransport` and `WebsocketClientTransport` issue that
+  would cause the transport to be closed prematurely, preventing the internally
+  queued audio to be sent. The same issue could also cause an infinite loop
+  while using an output mixer and when sending an `EndFrame`, preventing the bot
+  to finish.
+
 - Fixed an issue that could cause the `TranscriptionUpdateFrame` being pushed
   because of an interruption to be discarded.
 

CONTRIBUTING.md

@@ -26,11 +26,52 @@ git commit -m "Description of your changes"
 git push origin your-branch-name
 ```
 
-9. **Submit a Pull Request (PR)**: Open a PR from your forked repository to the main branch of this repo. 
-> Important: Describe the changes you've made clearly!
+8. **Submit a Pull Request (PR)**: Open a PR from your forked repository to the main branch of this repo.
+   > Important: Describe the changes you've made clearly!
 
 Our maintainers will review your PR, and once everything is good, your contributions will be merged!
 
+## Code Style and Documentation
+
+### Python Code Style
+
+We use Ruff for code linting and formatting. Please ensure your code passes all linting checks before submitting a PR.
+
+### Docstring Conventions
+
+We follow Google-style docstrings with these specific conventions:
+
+- Class docstrings should fully document all parameters used in `__init__`
+- We don't require separate docstrings for `__init__` methods when parameters are documented in the class docstring
+- Property methods should have docstrings explaining their purpose and return value
+
+Example of correctly documented class:
+
+```python
+class MyClass:
+    """Class description.
+
+    Additional details about the class.
+
+    Args:
+        param1: Description of first parameter.
+        param2: Description of second parameter.
+    """
+
+    def __init__(self, param1, param2):
+        # No docstring required here as parameters are documented above
+        self.param1 = param1
+        self.param2 = param2
+
+    @property
+    def some_property(self) -> str:
+        """Get the formatted property value.
+
+        Returns:
+            A string representation of the property.
+        """
+        return f"Property: {self.param1}"
+```
 
 # Contributor Covenant Code of Conduct
 
@@ -51,23 +92,23 @@ diverse, inclusive, and healthy community.
 Examples of behavior that contributes to a positive environment for our
 community include:
 
-* Demonstrating empathy and kindness toward other people
-* Being respectful of differing opinions, viewpoints, and experiences
-* Giving and gracefully accepting constructive feedback
-* Accepting responsibility and apologizing to those affected by our mistakes,
+- Demonstrating empathy and kindness toward other people
+- Being respectful of differing opinions, viewpoints, and experiences
+- Giving and gracefully accepting constructive feedback
+- Accepting responsibility and apologizing to those affected by our mistakes,
   and learning from the experience
-* Focusing on what is best not just for us as individuals, but for the overall
+- Focusing on what is best not just for us as individuals, but for the overall
   community
 
 Examples of unacceptable behavior include:
 
-* The use of sexualized language or imagery, and sexual attention or advances of
+- The use of sexualized language or imagery, and sexual attention or advances of
   any kind
-* Trolling, insulting or derogatory comments, and personal or political attacks
-* Public or private harassment
-* Publishing others' private information, such as a physical or email address,
+- Trolling, insulting or derogatory comments, and personal or political attacks
+- Public or private harassment
+- Publishing others' private information, such as a physical or email address,
   without their explicit permission
-* Other conduct which could reasonably be considered inappropriate in a
+- Other conduct which could reasonably be considered inappropriate in a
   professional setting
 
 ## Enforcement Responsibilities
@@ -162,4 +203,4 @@ For answers to common questions about this code of conduct, see the FAQ at
 [v2.1]: https://www.contributor-covenant.org/version/2/1/code_of_conduct.html
 [Mozilla CoC]: https://github.com/mozilla/diversity
 [FAQ]: https://www.contributor-covenant.org/faq
-[translations]: https://www.contributor-covenant.org/translations
+[translations]: https://www.contributor-covenant.org/translations

docs/api/index.rst

@@ -45,8 +45,10 @@ Transport & Serialization
 Utilities
 ~~~~~~~~~
 
+* :mod:`Adapters <pipecat.adapters>`
 * :mod:`Clocks <pipecat.clocks>`
 * :mod:`Metrics <pipecat.metrics>`
+* :mod:`Observers <pipecat.observers>`
 * :mod:`Sync <pipecat.sync>`
 * :mod:`Transcriptions <pipecat.transcriptions>`
 * :mod:`Utils <pipecat.utils>`
@@ -56,10 +58,12 @@ Utilities
    :caption: API Reference
    :hidden:
 
+   Adapters <api/pipecat.adapters>
    Audio <api/pipecat.audio>
    Clocks <api/pipecat.clocks>
    Frames <api/pipecat.frames>
    Metrics <api/pipecat.metrics>
+   Observers <api/pipecat.observers>
    Pipeline <api/pipecat.pipeline>
    Processors <api/pipecat.processors>
    Serializers <api/pipecat.serializers>

examples/deployment/pipecat-cloud-daily-pstn-server/README.md

@@ -0,0 +1,178 @@
+# Handling PSTN/SIP Dial-in on Pipecat Cloud
+
+This repository contains two server implementations for handling
+the pinless dial-in workflow in Pipecat Cloud. This is the companion to the
+Pipecat Cloud [pstn_sip starter image](https://github.com/daily-co/pipecat-cloud-images/tree/main/pipecat-starters/pstn_sip).
+In addition you can use `/api/dial` to trigger dial-out, and
+eventually, call-transfers.
+
+1. [FastAPI Server](fastapi-webhook-server/README.md) -
+   A FastAPI implementation that handles PSTN (Public Switched Telephone
+   Network) and SIP (Session Initiation Protocol) calls using the Daily API.
+
+2. [Next.js Serverless](nextjs-webhook-server/README.md) -
+   A Next.js API implementation designed for deployment on Vercel's
+   serverless platform.
+
+Both implementations provide:
+
+- HMAC signature validation for pinless webhook
+- Structured logging
+- Support for dial-in and dial-out settings
+- Voicemail detection and call transfer functionality (coming soon)
+- Test request handling
+
+## Choosing an Implementation
+
+- Use the **FastAPI Server** if you:
+
+  - Need a standalone server
+  - Prefer Python and FastAPI
+  - Want to deploy to traditional hosting platforms
+
+- Use the **Next.js Serverless** implementation if you:
+  - Want serverless deployment
+  - Prefer JavaScript/TypeScript
+  - Already use Next.js and Vercel for other projects
+  - Need quick scaling and zero maintenance
+
+## Prerequisites
+
+### Environment Variables
+
+Both implementations require similar environment variables:
+
+- `PIPECAT_CLOUD_API_KEY`: Pipecat Cloud API Key, begins with pk\_\*
+- `AGENT_NAME`: Your Daily agent name
+- `PINLESS_HMAC_SECRET`: Your HMAC secret for request verification
+- `LOG_LEVEL`: (Optional) Logging level (defaults to 'info')
+
+See the individual README files in each implementation directory for
+specific setup instructions.
+
+### Phone number setup
+
+You can buy a phone number through the Pipecat Cloud Dashboard:
+
+1. Go to `Settings` > `Telephony`
+2. Follow the UI to purchase a phone number
+3. Configure the webhook URL to receive incoming calls (e.g. `https://my-webhook-url.com/api/dial`)
+
+Or purchase the number using Daily's
+[PhoneNumbers API](https://docs.daily.co/reference/rest-api/phone-numbers).
+
+```bash
+curl --request POST \
+--url https://api.daily.co/v1/domain-dialin-config \
+--header 'Authorization: Bearer $TOKEN' \
+--header 'Content-Type: application/json' \
+--data-raw '{
+	"type": "pinless_dialin",
+	"name_prefix": "Customer1",
+    "phone_number": "+1PURCHASED_NUM",
+	"room_creation_api": "https://example.com/api/dial",
+    "hold_music_url": "https://example.com/static/ringtone.mp3",
+	"timeout_config": {
+		"message": "No agent is available right now"
+	}
+}'
+```
+
+The API will return a static SIP URI (`sip_uri`) that can be called
+from other SIP services.
+
+### `room_creation_api`
+
+To make and receive calls currently you have to host a server that
+handles incoming calls. In the coming weeks, incoming calls will be
+directly handled within Daily and we will expose an endpoint similar
+to `{service}/start` that will manage this for you.
+
+In the meantime, the server described below serves as the webhook
+handler for the `room_creation_api`. Configure your pinless phone
+number or SIP interconnect to the `ngrok` tunnel or
+the actual server URL, append `/api/dial` to the webhook URL.
+
+## Example curl commands
+
+Note: Replace `http://localhost:3000` with your actual server URL and
+phone numbers with valid values for your use case.
+
+### Dialin Request
+
+The server will receive a request when a call is received from Daily.
+
+### Dialout Request
+
+Dial a number, will use any purchased number
+
+```bash
+curl -X POST http://localhost:3000/api/dial \
+  -H "Content-Type: application/json" \
+  -d '{
+    "dialout_settings": [
+      {
+        "phoneNumber": "+1234567890",
+      }
+    ]
+  }'
+```
+
+Dial a number with callerId, which is the UUID of a purchased number.
+
+```bash
+curl -X POST http://localhost:3000/api/dial \
+  -H "Content-Type: application/json" \
+  -d '{
+    "dialout_settings": [
+      {
+        "phoneNumber": "+1234567890",
+        "callerId": "purchased_phone_uuid"
+      }
+    ]
+  }'
+```
+
+Dial a number
+
+```bash
+curl -X POST http://localhost:3000/api/dial \
+  -H "Content-Type: application/json" \
+  -d '{
+    "dialout_settings": [
+      {
+        "phoneNumber": "+1234567890",
+        "callerId": "purchased_phone_uuid"
+      }
+    ]
+  }'
+```
+
+### Advanced Request with Voicemail Detection
+
+```bash
+curl -X POST http://localhost:3000/api/dial \
+  -H "Content-Type: application/json" \
+  -d '{
+    "To": "+1234567890",
+    "From": "+1987654321",
+    "callId": "call-uuid-123",
+    "callDomain": "domain-uuid-456",
+    "dialout_settings": [
+      {
+        "phoneNumber": "+1234567890",
+        "callerId": "purchased_phone_uuid"
+      }
+    ],
+    "voicemail_detection": {
+      "testInPrebuilt": true
+    },
+    "call_transfer": {
+      "mode": "dialout",
+      "speakSummary": true,
+      "storeSummary": true,
+      "operatorNumber": "+1234567890",
+      "testInPrebuilt": true
+    }
+  }'
+```

examples/deployment/pipecat-cloud-daily-pstn-server/fastapi-webhook-server/README.md

@@ -0,0 +1,98 @@
+# FastAPI server for handling Daily PSTN/SIP Webhook
+
+A FastAPI server that handles PSTN (Public Switched Telephone Network) and SIP (Session Initiation Protocol) calls using the Daily API.
+
+## Setup
+
+1. Clone the repository
+
+2. Navigate to the `fastapi-webhook-server` directory:
+
+   ```bash
+   cd fastapi-webhook-server
+   ```
+
+3. Install dependencies:
+
+   ```bash
+   pip install -r requirements.txt
+   ```
+
+4. Copy `env.example` to `.env`:
+
+   ```bash
+   cp env.example .env
+   ```
+
+5. Update `.env` with your credentials:
+
+   - `AGENT_NAME`: Your Daily agent name
+   - `PIPECAT_CLOUD_API_KEY`: Your Daily API key
+   - `PINLESS_HMAC_SECRET`: Your HMAC secret for request verification
+
+## Running the Server
+
+Start the server:
+
+```bash
+python server.py
+```
+
+The server will run on `http://localhost:7860` and you can expose it via ngrok for testing:
+
+```bash
+`ngrok http 7860`
+```
+
+> Tip: Use a subdomain for a consistent URL (e.g. `ngrok http -subdomain=mydomain http://localhost:7860`)
+
+## API Endpoints
+
+### GET /
+
+Health check endpoint that returns a "Hello, World!" message.
+
+### POST /api/dial
+
+Initiates a PSTN/SIP call with the following request body format:
+
+```json
+{
+  "To": "+14152251493",
+  "From": "+14158483432",
+  "callId": "string-contains-uuid",
+  "callDomain": "string-contains-uuid",
+  "dialout_settings": [
+    {
+      "phoneNumber": "+14158483432",
+      "callerId": "+14152251493"
+    }
+  ],
+  "voicemail_detection": {
+    "testInPrebuilt": true
+  },
+  "call_transfer": {
+    "mode": "dialout",
+    "speakSummary": true,
+    "storeSummary": true,
+    "operatorNumber": "+14152250006",
+    "testInPrebuilt": true
+  }
+}
+```
+
+#### Response
+
+Returns a JSON object containing:
+
+- `status`: Success/failure status
+- `data`: Response from Daily API
+- `room_properties`: Properties of the created Daily room
+
+## Error Handling
+
+- 401: Invalid signature
+- 400: Invalid authorization header (e.g. missing Daily API key in bot.py)
+- 405: Method not allowed (e.g. incorrect route on the webhook URL)
+- 500: Server errors (missing API key, network issues)
+- Other status codes are passed through from the Daily API

examples/deployment/pipecat-cloud-daily-pstn-server/fastapi-webhook-server/env.example

@@ -0,0 +1,3 @@
+AGENT_NAME="your-agent-name"
+PIPECAT_CLOUD_API_KEY="your-daily-api-key"
+PINLESS_HMAC_SECRET="hmac-secret-pinless-dialin"

examples/deployment/pipecat-cloud-daily-pstn-server/fastapi-webhook-server/requirements.txt

@@ -0,0 +1,6 @@
+fastapi
+uvicorn
+python-dotenv
+requests
+pydantic
+loguru

examples/deployment/pipecat-cloud-daily-pstn-server/fastapi-webhook-server/server.py

@@ -0,0 +1,201 @@
+#
+# Copyright (c) 2025, Daily
+#
+# SPDX-License-Identifier: BSD 2-Clause License
+#
+
+# server.py
+
+
+import base64  # for calculating hmac signature
+import hmac
+import os  # for accessing environment variables
+import time  # for setting expiration time
+from typing import Any, Dict, List, Optional
+
+import requests
+from dotenv import load_dotenv
+from fastapi import FastAPI, HTTPException, Request
+from loguru import logger
+from pydantic import BaseModel, Field
+
+load_dotenv(override=True)
+
+app = FastAPI()
+
+
+class RoomRequest(BaseModel):
+    test: Optional[str] = Field(None, alias="Test", description="Test field")
+    To: Optional[str] = Field(None, alias="to", description="Destination phone number")
+    From: Optional[str] = Field(None, alias="from", description="Source phone number")
+    callId: Optional[str] = Field(None, alias="call_id", description="Unique call identifier")
+    callDomain: Optional[str] = Field(
+        None, alias="call_domain", description="Call domain identifier"
+    )
+    dialout_settings: Optional[List[Dict[str, Any]]] = Field(
+        None, description="An array of phone numbers or SIP URIs to dialout to"
+    )
+    voicemail_detection: Optional[Dict[str, Any]] = Field(
+        None, description="A flag to perform voicemail or answeing-machine detection"
+    )
+    call_transfer: Optional[Dict[str, Any]] = Field(None, description="to initiate a call transfer")
+
+    class Config:
+        populate_by_name = True
+        alias_generator = None
+
+
+"""
+    body can contain any fields, but for handling PSTN/SIP, 
+    we recommend sending the following custom values:
+    dialin, dialout, voicemail detection, and call transfer
+    
+    
+    "To": "+14152251493",
+    "From": "+14158483432",
+    "callId": "string-contains-uuid",
+    "callDomain": "string-contains-uuid"
+    These need to be remapped to dialin_settings
+
+    "dialout_settings": [
+        {"phoneNumber": "+14158483432", "callerId": "+14152251493"}, 
+        {"sipUri": "sip:username@sip.hostname"}
+        ],
+    },
+
+    voicemail_detection:{
+        testInPrebuilt: true
+    },
+
+    "call_transfer": {
+        "mode": "dialout",
+        "speakSummary": true,
+        "storeSummary": true,
+        "operatorNumber": "+14152250006",
+        "testInPrebuilt": true
+    }
+"""
+
+
+@app.get("/")
+async def read_root():
+    return {"message": "Hello, World!"}
+
+
+@app.post("/api/dial")
+async def dial(request: RoomRequest, raw_request: Request):
+    logger.info("Incoming request to /dial:")
+    logger.info(f"Headers: {dict(raw_request.headers)}")
+    raw_body = await raw_request.body()
+    raw_body_str = raw_body.decode()
+    logger.info(f"Raw body: {raw_body_str}")
+    logger.info(f"Parsed body: {request.dict()}")
+
+    # calculate signature and compare/verify
+    hmac_secret = os.getenv("PINLESS_HMAC_SECRET")
+    timestamp = raw_request.headers.get("x-pinless-timestamp")
+    signature = raw_request.headers.get("x-pinless-signature")
+
+    if not hmac_secret:
+        logger.debug("Skipping HMAC validation - PINLESS_HMAC_SECRET not set")
+    elif timestamp and signature:
+        message = timestamp + "." + raw_body_str
+
+        base64_decoded_secret = base64.b64decode(hmac_secret)
+        computed_signature = base64.b64encode(
+            hmac.new(base64_decoded_secret, message.encode(), "sha256").digest()
+        ).decode()
+
+        if computed_signature != signature:
+            logger.error(f"Invalid signature. Expected {signature}, got {computed_signature}")
+            raise HTTPException(status_code=401, detail="Invalid signature")
+    else:
+        logger.debug("Skipping HMAC validation - no signature headers present")
+
+    if request.test == "test":
+        logger.debug("Test request received")
+        return {"status": "success", "message": "Test request received"}
+
+    dialin_settings = None
+    # these fields are camelCase in the request
+    required_fields = ["To", "From", "callId", "callDomain"]
+    if all(
+        field in request.dict() and request.dict()[field] is not None for field in required_fields
+    ):
+        # transform from camelCase to snake_case because daily-python expects snake_case
+        dialin_settings = {
+            "From": request.From,
+            "To": request.To,
+            "call_id": request.callId,
+            "call_domain": request.callDomain,
+            # transform from camelCase to snake_case
+        }
+        logger.debug(f"Populated dialin_settings from request: {dialin_settings}")
+
+    daily_room_properties = {
+        "enable_dialout": request.dialout_settings is not None,
+    }
+
+    if dialin_settings is not None:
+        sip_config = {
+            "display_name": request.From,
+            "sip_mode": "dial-in",
+            "num_endpoints": 2 if request.call_transfer is not None else 1,
+        }
+        daily_room_properties["sip"] = sip_config
+
+    # Setting default expiry to 5 minutes from now
+    daily_room_properties["exp"] = int(time.time()) + (5 * 60)
+
+    logger.debug(f"Daily room properties: {daily_room_properties}")
+    payload = {
+        "createDailyRoom": True,
+        "dailyRoomProperties": daily_room_properties,
+        "body": {
+            "dialin_settings": dialin_settings,
+            "dialout_settings": request.dialout_settings,
+            "voicemail_detection": request.voicemail_detection,
+            "call_transfer": request.call_transfer,
+        },
+    }
+
+    pcc_api_key = os.getenv("PIPECAT_CLOUD_API_KEY")
+    agent_name = os.getenv("AGENT_NAME", "my-first-agent")
+
+    if not pcc_api_key:
+        raise HTTPException(status_code=500, detail="DAILY_API_KEY environment variable is not set")
+
+    headers = {"Authorization": f"Bearer {pcc_api_key}", "Content-Type": "application/json"}
+
+    url = f"https://api.pipecat.daily.co/v1/public/{agent_name}/start"
+
+    logger.debug(f"Making API call to Daily: {url} {headers} {payload}")
+
+    try:
+        response = requests.post(url, json=payload, headers=headers)
+        response.raise_for_status()
+        response_data = response.json()
+        logger.debug(f"Response: {response_data}")
+        return {
+            "status": "success",
+            "data": response_data,
+            "room_properties": daily_room_properties,
+        }
+    except requests.exceptions.HTTPError as e:
+        # Pass through the status code and error details from the Daily API
+        status_code = e.response.status_code
+        error_detail = e.response.json() if e.response.content else str(e)
+        logger.error(f"HTTP error: {error_detail}")
+        raise HTTPException(status_code=status_code, detail=error_detail)
+    except requests.exceptions.RequestException as e:
+        logger.error(f"Request error: {str(e)}")
+        raise HTTPException(status_code=500, detail=str(e))
+
+
+if __name__ == "__main__":
+    try:
+        import uvicorn
+
+        uvicorn.run(app, host="0.0.0.0", port=7860)
+    except KeyboardInterrupt:
+        logger.info("Server stopped manually")

examples/deployment/pipecat-cloud-daily-pstn-server/nextjs-webhook-server/.gitignore

@@ -0,0 +1,53 @@
+# dependencies
+/node_modules
+/.pnp
+.pnp.js
+
+# testing
+/coverage
+
+# next.js
+/.next/
+/out/
+
+# production
+/build
+
+# misc
+.DS_Store
+*.pem
+
+# debug
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+.pnpm-debug.log*
+
+# local env files
+.env*.local
+
+# vercel
+.vercel
+
+# typescript
+*.tsbuildinfo
+next-env.d.ts
+
+# IDE specific files
+.idea/
+.vscode/
+*.swp
+*.swo
+
+# Logs
+logs
+*.log
+
+# OS generated files
+.DS_Store
+.DS_Store?
+._*
+.Spotlight-V100
+.Trashes
+ehthumbs.db
+Thumbs.db

examples/deployment/pipecat-cloud-daily-pstn-server/nextjs-webhook-server/README.md

@@ -0,0 +1,115 @@
+# Next.js server for handling Daily PSTN/SIP Webhook
+
+Next.js API routes for handling Daily PSTN/SIP Pipecat requests.
+
+## Features
+
+- API endpoint for handling Daily PSTN/SIP Pipecat requests
+- HMAC signature validation
+- Structured logging with Pino
+- Support for dial-in and dial-out settings
+- Voicemail detection and call transfer functionality
+- Test request handling
+
+## Setup
+
+1. Clone the repository
+
+2. Navigate to the `nextjs-webhook-server` directory:
+
+   ```bash
+   cd nextjs-webhook-server
+   ```
+
+3. Install dependencies:
+
+   ```bash
+   npm install
+   ```
+
+4. Create `.env.local` file with your credentials:
+
+   ```bash
+   cp env.local.example .env.local
+   ```
+
+5. Update your `.env` with your secrets:
+
+   ```bash
+   PIPECAT_CLOUD_API_KEY=pk_*
+   AGENT_NAME=my-first-agent
+   PINLESS_HMAC_SECRET=your_hmac_secret
+   LOG_LEVEL=info
+   ```
+
+### Running the server
+
+Run the development server:
+
+```bash
+npm run dev
+```
+
+The server will run on `http://localhost:7860` and you can expose it via ngrok for testing:
+
+```bash
+`ngrok http 7860`
+```
+
+> Tip: Use a subdomain for a consistent URL (e.g. `ngrok http -subdomain=mydomain http://localhost:7860`)
+
+## API Endpoints
+
+### GET /api
+
+Returns a simple "Hello, World!" message with a cute cat emoji to verify the server is running.
+
+### POST /api/dial
+
+Handles dial-in and dial-out requests for Pipecat Cloud.
+
+#### Test Requests
+
+The endpoint handles test requests when a webhook is configured. Send a request with `"Test": "test"` to verify your setup:
+
+```json
+{
+  "Test": "test"
+}
+```
+
+#### Production Request Format
+
+```json
+{
+  // for dial-in from webhook
+  "To": "+14152251493",
+  "From": "+14158483432",
+  "callId": "string-contains-uuid",
+  "callDomain": "string-contains-uuid",
+  // for making a dial out to a phone or SIP
+  "dialout_settings": [
+    { "phoneNumber": "+14158483432", "callerId": "purchased_phone_uuid" },
+    { "sipUri": "sip:username@sip.hostname.com" }
+  ]
+}
+```
+
+## Deployment
+
+The application is configured for Vercel deployment:
+
+1. Push your code to a Git repository
+2. Import your project in Vercel dashboard
+3. Configure environment variables:
+   - `PIPECAT_CLOUD_API_KEY`
+   - `AGENT_NAME`
+   - `PINLESS_HMAC_SECRET`
+   - `LOG_LEVEL` (optional, defaults to 'info')
+4. Deploy!
+
+## Security
+
+- HMAC signature validation for request authentication
+- Environment variables for sensitive credentials
+- Method validation (POST only for /dial)

examples/deployment/pipecat-cloud-daily-pstn-server/nextjs-webhook-server/env.local.example

@@ -0,0 +1,4 @@
+AGENT_NAME=my-first-agent
+PIPECAT_CLOUD_API_KEY=your_daily_api_key
+PINLESS_HMAC_SECRET=your_hmac_secret
+LOG_LEVEL="info"

examples/deployment/pipecat-cloud-daily-pstn-server/nextjs-webhook-server/package.json

@@ -0,0 +1,22 @@
+{
+  "name": "my-daily-app",
+  "version": "0.1.0",
+  "private": true,
+  "scripts": {
+    "dev": "next dev -p 7860",
+    "build": "next build",
+    "start": "next start -p 7860",
+    "lint": "next lint"
+  },
+  "dependencies": {
+    "axios": "^1.6.0",
+    "next": "^14.0.0",
+    "pino": "^8.15.0",
+    "react": "^18.2.0",
+    "react-dom": "^18.2.0"
+  },
+  "devDependencies": {
+    "eslint": "^8.46.0",
+    "eslint-config-next": "^14.0.0"
+  }
+}

examples/deployment/pipecat-cloud-daily-pstn-server/nextjs-webhook-server/pages/api/dial.js

@@ -0,0 +1,175 @@
+import { logger } from '../../lib/utils'; 
+import axios from 'axios';
+import crypto from 'crypto';
+
+const validateSignature = (body, signature, timestamp, secret) => {
+  // Skip if any required fields are missing
+  if (!signature || !timestamp || !secret) {
+    logger.warn('Missing required fields for HMAC validation');
+    return true;
+  }
+
+  try {
+    const decodedSecret = Buffer.from(secret, 'base64');
+    const hmac = crypto.createHmac('sha256', decodedSecret);
+    const signatureData = `${timestamp}.${body}`;
+    const computedSignature = hmac.update(signatureData).digest('base64');
+    
+    logger.debug('Signature validation:', {
+      timestamp,
+      signatureData: signatureData.substring(0, 50) + '...',
+      computedSignature,
+      receivedSignature: signature
+    });
+    
+    return computedSignature === signature;
+  } catch (error) {
+    logger.error('Error validating signature:', error);
+    return true; // Allow request to proceed on error
+  }
+};
+
+export default async function handler(req, res) {
+  // Only allow POST requests
+  if (req.method !== 'POST') {
+    return res.status(405).json({ error: 'Method not allowed' });
+  }
+
+  try {
+    logger.info('Incoming request to /api/dial:');
+    logger.info(`Headers: ${JSON.stringify(req.headers)}`);
+    
+    const rawBody = JSON.stringify(req.body);
+    logger.info(`Raw body: ${rawBody}`);
+
+    const signature = req.headers['x-pinless-signature'];
+    const timestamp = req.headers['x-pinless-timestamp'];
+    
+    if (signature && timestamp) {
+      logger.info('Validating HMAC signature');
+      if (!validateSignature(rawBody, signature, timestamp, process.env.PINLESS_HMAC_SECRET)) {
+        logger.error('Invalid HMAC signature', { signature, timestamp });
+        return res.status(401).json({ 
+          error: 'Invalid signature',
+          message: 'Invalid HMAC signature'
+        });
+      }
+    } else {
+      logger.info('Skipping HMAC validation - no signature headers present');
+    }
+
+    // Extract request data
+    const {
+      Test: test,
+      To,
+      From,
+      callId,
+      callDomain,
+      dialout_settings,
+      voicemail_detection,
+      call_transfer
+    } = req.body;
+
+    // Handle test requests when a webhook is configured
+    if (test === 'test') {
+      logger.debug('Test request received');
+      return res.status(200).json({ status: 'success', message: 'Test request received' });
+    }
+
+    // Process dialin settings
+    let dialin_settings = null;
+    const requiredFields = ['To', 'From', 'callId', 'callDomain'];
+    
+    if (requiredFields.every(field => req.body[field] !== undefined && req.body[field] !== null)) {
+      dialin_settings = {
+        // snake_case because pipecat expects this format
+        From,
+        To,
+        call_id: callId, 
+        call_domain: callDomain,
+      };
+      logger.debug(`Populated dialin_settings from request: ${JSON.stringify(dialin_settings)}`);
+    }
+
+    // Set up Daily room properties
+    const daily_room_properties = {
+      enable_dialout: dialout_settings !== undefined && dialout_settings !== null,
+      exp: Math.floor(Date.now() / 1000) + (5 * 60), // 5 minutes from now
+    };
+
+    // Configure SIP if dialin settings are provided
+    if (dialin_settings !== null) {
+      const sip_config = {
+        display_name: From,
+        sip_mode: 'dial-in',
+        num_endpoints: call_transfer !== null ? 2 : 1,
+      };
+      daily_room_properties.sip = sip_config;
+    }
+
+    // Prepare payload for {service}/start API call
+    const payload = {
+      createDailyRoom: true,
+      dailyRoomProperties: daily_room_properties,
+      body: {
+        dialin_settings,
+        dialout_settings,
+        voicemail_detection,
+        call_transfer,
+      },
+    };
+
+    logger.debug(`Daily room properties: ${JSON.stringify(daily_room_properties)}`);
+
+    // Get Daily API key and agent name from environment variables
+    const pccApiKey = process.env.PIPECAT_CLOUD_API_KEY;
+    const agentName = process.env.AGENT_NAME || 'my-first-agent';
+
+    if (!pccApiKey) {
+      throw new Error('PIPECAT_CLOUD_API_KEY environment variable is not set');
+    }
+
+    // Set up headers for Daily API call
+    const headers = {
+      'Authorization': `Bearer ${pccApiKey}`,
+      'Content-Type': 'application/json',
+    };
+
+    const url = `https://api.pipecat.daily.co/v1/public/${agentName}/start`;
+    logger.debug(`Making API call to Daily: ${url} ${JSON.stringify(headers)} ${JSON.stringify(payload)}`);
+    
+    try {
+      const response = await axios.post(url, payload, { headers });
+      logger.debug(`Response: ${JSON.stringify(response.data)}`);
+      
+      return res.status(200).json({
+        status: 'success',
+        data: response.data,
+        room_properties: daily_room_properties,
+      });
+    } catch (error) {
+      if (error.response) {
+        // Pass through status code and error details from the Daily API
+        const statusCode = error.response.status;
+        const errorDetail = error.response.data || error.message;
+        logger.error(`HTTP error: ${JSON.stringify(errorDetail)}`);
+        return res.status(statusCode).json(errorDetail);
+      } else {
+        logger.error(`Request error: ${error.message}`);
+        return res.status(500).json({ error: error.message });
+      }
+    }    
+  } catch (error) {
+    logger.error(`Unexpected error: ${error.message}`);
+    return res.status(500).json({ error: 'Internal server error', message: error.message });
+  }
+}
+
+// Configure body parser to preserve raw body text
+export const config = {
+  api: {
+    bodyParser: {
+      sizeLimit: '1mb',
+    },
+  },
+};

examples/deployment/pipecat-cloud-daily-pstn-server/nextjs-webhook-server/pages/api/index.js

@@ -0,0 +1,6 @@
+import { logger } from '../../lib/utils';
+
+export default function handler(req, res) {
+  logger.info('Received request to /api');
+  res.status(200).json({ message: 'Hello, World! from ᓚᘏᗢ' });
+}

examples/deployment/pipecat-cloud-daily-pstn-server/nextjs-webhook-server/vercel.js

@@ -0,0 +1,6 @@
+module.exports = {
+  version: 2,
+  buildCommand: "next build",
+  outputDirectory: ".next",
+  cleanUrls: true
+};

examples/foundational/07g-interruptible-openai.py

@@ -59,7 +59,7 @@ async def main():
             prompt="Expect words related to dogs, such as breed names.",
         )
 
-        tts = OpenAITTSService(api_key=os.getenv("OPENAI_API_KEY"), model="gpt-4o-mini-tts-latest")
+        tts = OpenAITTSService(api_key=os.getenv("OPENAI_API_KEY"), voice="ballad")
 
         llm = OpenAILLMService(api_key=os.getenv("OPENAI_API_KEY"), model="gpt-4o")
 

examples/foundational/19a-azure-realtime-beta.py

@@ -147,8 +147,8 @@ Remember, your responses should be short. Just one or two sentences, usually."""
                 transport.input(),  # Transport user input
                 context_aggregator.user(),
                 llm,  # LLM
-                context_aggregator.assistant(),
                 transport.output(),  # Transport bot output
+                context_aggregator.assistant(),
             ]
         )
 

examples/foundational/20a-persistent-context-openai.py

@@ -205,8 +205,8 @@ async def main():
                 context_aggregator.user(),
                 llm,  # LLM
                 tts,
-                context_aggregator.assistant(),
                 transport.output(),  # Transport bot output
+                context_aggregator.assistant(),
             ]
         )
 

examples/foundational/20b-persistent-context-openai-realtime.py

@@ -230,8 +230,8 @@ Remember, your responses should be short. Just one or two sentences, usually."""
                 transport.input(),  # Transport user input
                 context_aggregator.user(),
                 llm,  # LLM
-                context_aggregator.assistant(),
                 transport.output(),  # Transport bot output
+                context_aggregator.assistant(),
             ]
         )
 

examples/foundational/20c-persistent-context-anthropic.py

@@ -202,8 +202,8 @@ async def main():
                 context_aggregator.user(),
                 llm,  # LLM
                 tts,
-                context_aggregator.assistant(),
                 transport.output(),  # Transport bot output
+                context_aggregator.assistant(),
             ]
         )
 

examples/foundational/20d-persistent-context-gemini.py

@@ -261,8 +261,8 @@ async def main():
                 context_aggregator.user(),
                 llm,  # LLM
                 tts,
-                context_aggregator.assistant(),
                 transport.output(),  # Transport bot output
+                context_aggregator.assistant(),
             ]
         )
 

examples/foundational/26b-gemini-multimodal-live-function-calling.py

@@ -110,8 +110,8 @@ async def main():
                 transport.input(),
                 context_aggregator.user(),
                 llm,
-                context_aggregator.assistant(),
                 transport.output(),
+                context_aggregator.assistant(),
             ]
         )
 

examples/instant-voice/client/javascript/package-lock.json

@@ -9,8 +9,8 @@
       "version": "1.0.0",
       "license": "ISC",
       "dependencies": {
-        "@pipecat-ai/client-js": "^0.3.2",
-        "@pipecat-ai/daily-transport": "^0.3.5"
+        "@pipecat-ai/client-js": "^0.3.5",
+        "@pipecat-ai/daily-transport": "^0.3.8"
       },
       "devDependencies": {
         "@types/node": "^22.13.1",
@@ -20,9 +20,9 @@
       }
     },
     "node_modules/@babel/runtime": {
-      "version": "7.26.0",
-      "resolved": "https://registry.npmjs.org/@babel/runtime/-/runtime-7.26.0.tgz",
-      "integrity": "sha512-FDSOghenHTiToteC/QRlv2q3DhPZ/oOXTBoirfWNx1Cx3TMVcGWQtMMmQcSvb/JjpNeGzx8Pq/b4fKEJuWm1sw==",
+      "version": "7.27.0",
+      "resolved": "https://registry.npmjs.org/@babel/runtime/-/runtime-7.27.0.tgz",
+      "integrity": "sha512-VtPOkrdPHZsKc/clNqyi9WUA8TINkZ4cGk63UUE3u4pmB2k+ZMQRDuIOagv8UVd6j7k0T3+RRIb7beKTebNbcw==",
       "license": "MIT",
       "dependencies": {
         "regenerator-runtime": "^0.14.0"
@@ -32,9 +32,9 @@
       }
     },
     "node_modules/@daily-co/daily-js": {
-      "version": "0.73.0",
-      "resolved": "https://registry.npmjs.org/@daily-co/daily-js/-/daily-js-0.73.0.tgz",
-      "integrity": "sha512-Wz8c60hgmkx8fcEeDAi4L4J0rbafiihWKyXFyhYoFYPsw2OdChHpA4RYwIB+1enRws5IK+/HdmzFDYLQsB4A6w==",
+      "version": "0.77.0",
+      "resolved": "https://registry.npmjs.org/@daily-co/daily-js/-/daily-js-0.77.0.tgz",
+      "integrity": "sha512-icNXKieKAkRR/C5dcPjrCkL1jQGFp5C5WtLHy5uHAdTztm+mo9wlPJuehbWaGOM3TV24mgWHZ/+8jOys1G0I4w==",
       "license": "BSD-2-Clause",
       "dependencies": {
         "@babel/runtime": "^7.12.5",
@@ -47,74 +47,6 @@
         "node": ">=10.0.0"
       }
     },
-    "node_modules/@esbuild/aix-ppc64": {
-      "version": "0.24.0",
-      "resolved": "https://registry.npmjs.org/@esbuild/aix-ppc64/-/aix-ppc64-0.24.0.tgz",
-      "integrity": "sha512-WtKdFM7ls47zkKHFVzMz8opM7LkcsIp9amDUBIAWirg70RM71WRSjdILPsY5Uv1D42ZpUfaPILDlfactHgsRkw==",
-      "cpu": [
-        "ppc64"
-      ],
-      "dev": true,
-      "license": "MIT",
-      "optional": true,
-      "os": [
-        "aix"
-      ],
-      "engines": {
-        "node": ">=18"
-      }
-    },
-    "node_modules/@esbuild/android-arm": {
-      "version": "0.24.0",
-      "resolved": "https://registry.npmjs.org/@esbuild/android-arm/-/android-arm-0.24.0.tgz",
-      "integrity": "sha512-arAtTPo76fJ/ICkXWetLCc9EwEHKaeya4vMrReVlEIUCAUncH7M4bhMQ+M9Vf+FFOZJdTNMXNBrWwW+OXWpSew==",
-      "cpu": [
-        "arm"
-      ],
-      "dev": true,
-      "license": "MIT",
-      "optional": true,
-      "os": [
-        "android"
-      ],
-      "engines": {
-        "node": ">=18"
-      }
-    },
-    "node_modules/@esbuild/android-arm64": {
-      "version": "0.24.0",
-      "resolved": "https://registry.npmjs.org/@esbuild/android-arm64/-/android-arm64-0.24.0.tgz",
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-      "cpu": [
-        "arm64"
-      ],
-      "dev": true,
-      "license": "MIT",
-      "optional": true,
-      "os": [
-        "android"
-      ],
-      "engines": {
-        "node": ">=18"
-      }
-    },
-    "node_modules/@esbuild/android-x64": {
-      "version": "0.24.0",
-      "resolved": "https://registry.npmjs.org/@esbuild/android-x64/-/android-x64-0.24.0.tgz",
-      "integrity": "sha512-t8GrvnFkiIY7pa7mMgJd7p8p8qqYIz1NYiAoKc75Zyv73L3DZW++oYMSHPRarcotTKuSs6m3hTOa5CKHaS02TQ==",
-      "cpu": [
-        "x64"
-      ],
-      "dev": true,
-      "license": "MIT",
-      "optional": true,
-      "os": [
-        "android"
-      ],
-      "engines": {
-        "node": ">=18"
-      }
-    },
     "node_modules/@esbuild/darwin-arm64": {
       "version": "0.24.0",
       "resolved": "https://registry.npmjs.org/@esbuild/darwin-arm64/-/darwin-arm64-0.24.0.tgz",
@@ -132,333 +64,10 @@
         "node": ">=18"
       }
     },
-    "node_modules/@esbuild/darwin-x64": {
-      "version": "0.24.0",
-      "resolved": "https://registry.npmjs.org/@esbuild/darwin-x64/-/darwin-x64-0.24.0.tgz",
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-      "cpu": [
-        "x64"
-      ],
-      "dev": true,
-      "license": "MIT",
-      "optional": true,
-      "os": [
-        "darwin"
-      ],
-      "engines": {
-        "node": ">=18"
-      }
-    },
-    "node_modules/@esbuild/freebsd-arm64": {
-      "version": "0.24.0",
-      "resolved": "https://registry.npmjs.org/@esbuild/freebsd-arm64/-/freebsd-arm64-0.24.0.tgz",
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-      "cpu": [
-        "arm64"
-      ],
-      "dev": true,
-      "license": "MIT",
-      "optional": true,
-      "os": [
-        "freebsd"
-      ],
-      "engines": {
-        "node": ">=18"
-      }
-    },
-    "node_modules/@esbuild/freebsd-x64": {
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-        "x64"
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-      "cpu": [
-        "ia32"
-      ],
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       "license": "MIT",
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-        "@sentry/core": "8.49.0"
+        "@sentry/core": "8.55.0"
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+      "resolved": "https://registry.npmjs.org/@sentry-internal/feedback/-/feedback-8.55.0.tgz",
+      "integrity": "sha512-cP3BD/Q6pquVQ+YL+rwCnorKuTXiS9KXW8HNKu4nmmBAyf7urjs+F6Hr1k9MXP5yQ8W3yK7jRWd09Yu6DHWOiw==",
       "license": "MIT",
       "dependencies": {
-        "@sentry/core": "8.49.0"
+        "@sentry/core": "8.55.0"
       },
       "engines": {
         "node": ">=14.18"
       }
     },
     "node_modules/@sentry-internal/replay": {
-      "version": "8.49.0",
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-      "integrity": "sha512-BDiiCBxskkktTd6FNplBc9V8l14R4T/AwRIZj2itX4xnuHewTTDjVbeyvGol4roA4r+V0Mzoi31hLEGI6yFQ5Q==",
+      "version": "8.55.0",
+      "resolved": "https://registry.npmjs.org/@sentry-internal/replay/-/replay-8.55.0.tgz",
+      "integrity": "sha512-roCDEGkORwolxBn8xAKedybY+Jlefq3xYmgN2fr3BTnsXjSYOPC7D1/mYqINBat99nDtvgFvNfRcZPiwwZ1hSw==",
       "license": "MIT",
       "dependencies": {
-        "@sentry-internal/browser-utils": "8.49.0",
-        "@sentry/core": "8.49.0"
+        "@sentry-internal/browser-utils": "8.55.0",
+        "@sentry/core": "8.55.0"
       },
       "engines": {
         "node": ">=14.18"
       }
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     "node_modules/@sentry-internal/replay-canvas": {
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+      "version": "8.55.0",
+      "resolved": "https://registry.npmjs.org/@sentry-internal/replay-canvas/-/replay-canvas-8.55.0.tgz",
+      "integrity": "sha512-nIkfgRWk1091zHdu4NbocQsxZF1rv1f7bbp3tTIlZYbrH62XVZosx5iHAuZG0Zc48AETLE7K4AX9VGjvQj8i9w==",
       "license": "MIT",
       "dependencies": {
-        "@sentry-internal/replay": "8.49.0",
-        "@sentry/core": "8.49.0"
+        "@sentry-internal/replay": "8.55.0",
+        "@sentry/core": "8.55.0"
       },
       "engines": {
         "node": ">=14.18"
       }
     },
     "node_modules/@sentry/browser": {
-      "version": "8.49.0",
-      "resolved": "https://registry.npmjs.org/@sentry/browser/-/browser-8.49.0.tgz",
-      "integrity": "sha512-dS4Sw2h8EixHeXOIR++XEVMTen6xCGcIQ/XhJbsjqvddXeIijW0WkxSeTfPkfs0dsqFHSisWmlmo0xhHbXvEsQ==",
+      "version": "8.55.0",
+      "resolved": "https://registry.npmjs.org/@sentry/browser/-/browser-8.55.0.tgz",
+      "integrity": "sha512-1A31mCEWCjaMxJt6qGUK+aDnLDcK6AwLAZnqpSchNysGni1pSn1RWSmk9TBF8qyTds5FH8B31H480uxMPUJ7Cw==",
       "license": "MIT",
       "dependencies": {
-        "@sentry-internal/browser-utils": "8.49.0",
-        "@sentry-internal/feedback": "8.49.0",
-        "@sentry-internal/replay": "8.49.0",
-        "@sentry-internal/replay-canvas": "8.49.0",
-        "@sentry/core": "8.49.0"
+        "@sentry-internal/browser-utils": "8.55.0",
+        "@sentry-internal/feedback": "8.55.0",
+        "@sentry-internal/replay": "8.55.0",
+        "@sentry-internal/replay-canvas": "8.55.0",
+        "@sentry/core": "8.55.0"
       },
       "engines": {
         "node": ">=14.18"
       }
     },
     "node_modules/@sentry/core": {
-      "version": "8.49.0",
-      "resolved": "https://registry.npmjs.org/@sentry/core/-/core-8.49.0.tgz",
-      "integrity": "sha512-/OAm6LdHhh8TvfDAucWfSJV7M03IOHrJm5LVjrrKr4gwQ1HKd4CDbARsBbPwHIzSRAle0IgG3sbJxEvv52JUIw==",
+      "version": "8.55.0",
+      "resolved": "https://registry.npmjs.org/@sentry/core/-/core-8.55.0.tgz",
+      "integrity": "sha512-6g7jpbefjHYs821Z+EBJ8r4Z7LT5h80YSWRJaylGS4nW5W5Z2KXzpdnyFarv37O7QjauzVC2E+PABmpkw5/JGA==",
       "license": "MIT",
       "engines": {
         "node": ">=14.18"
@@ -863,159 +234,6 @@
         "node": ">=10"
       }
     },
-    "node_modules/@swc/core-darwin-x64": {
-      "version": "1.10.14",
-      "resolved": "https://registry.npmjs.org/@swc/core-darwin-x64/-/core-darwin-x64-1.10.14.tgz",
-      "integrity": "sha512-KpzotL/I0O12RE3tF8NmQErINv0cQe/0mnN/Q50ESFzB5kU6bLgp2HMnnwDTm/XEZZRJCNe0oc9WJ5rKbAJFRQ==",
-      "cpu": [
-        "x64"
-      ],
-      "dev": true,
-      "license": "Apache-2.0 AND MIT",
-      "optional": true,
-      "os": [
-        "darwin"
-      ],
-      "engines": {
-        "node": ">=10"
-      }
-    },
-    "node_modules/@swc/core-linux-arm-gnueabihf": {
-      "version": "1.10.14",
-      "resolved": "https://registry.npmjs.org/@swc/core-linux-arm-gnueabihf/-/core-linux-arm-gnueabihf-1.10.14.tgz",
-      "integrity": "sha512-20yRXZjMJVz1wp1TcscKiGTVXistG+saIaxOmxSNQia1Qun3hSWLL+u6+5kXbfYGr7R2N6kqSwtZbIfJI25r9Q==",
-      "cpu": [
-        "arm"
-      ],
-      "dev": true,
-      "license": "Apache-2.0",
-      "optional": true,
-      "os": [
-        "linux"
-      ],
-      "engines": {
-        "node": ">=10"
-      }
-    },
-    "node_modules/@swc/core-linux-arm64-gnu": {
-      "version": "1.10.14",
-      "resolved": "https://registry.npmjs.org/@swc/core-linux-arm64-gnu/-/core-linux-arm64-gnu-1.10.14.tgz",
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-      "cpu": [
-        "arm64"
-      ],
-      "dev": true,
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-      "optional": true,
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-        "linux"
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-    "node_modules/@swc/core-linux-arm64-musl": {
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-    "node_modules/@swc/core-linux-x64-gnu": {
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-      "optional": true,
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-      "engines": {
-        "node": ">=10"
-      }
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-    "node_modules/@swc/core-linux-x64-musl": {
-      "version": "1.10.14",
-      "resolved": "https://registry.npmjs.org/@swc/core-linux-x64-musl/-/core-linux-x64-musl-1.10.14.tgz",
-      "integrity": "sha512-OZW+Icm8DMPqHbhdxplkuG8qrNnPk5i7xJOZWYi1y5bTjgGFI4nEzrsmmeHKMdQTaWwsFrm3uK1rlyQ48MmXmg==",
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     "node_modules/@swc/counter": {
       "version": "0.1.3",
       "resolved": "https://registry.npmjs.org/@swc/counter/-/counter-0.1.3.tgz",

examples/instant-voice/client/javascript/package.json

@@ -18,7 +18,7 @@
     "vite": "^6.0.2"
   },
   "dependencies": {
-    "@pipecat-ai/client-js": "^0.3.2",
-    "@pipecat-ai/daily-transport": "^0.3.5"
+    "@pipecat-ai/client-js": "^0.3.5",
+    "@pipecat-ai/daily-transport": "^0.3.8"
   }
 }

examples/instant-voice/client/javascript/src/app.ts

@@ -23,15 +23,14 @@ import {
   RTVIEvent,
 } from '@pipecat-ai/client-js';
 import { DailyTransport } from '@pipecat-ai/daily-transport';
-import SoundUtils from "./util/soundUtils";
-import { InstantVoiceHelper } from "./util/instantVoiceHelper";
+import SoundUtils from './util/soundUtils';
+import { InstantVoiceHelper } from './util/instantVoiceHelper';
 
 /**
  * InstantVoiceClient handles the connection and media management for a real-time
  * voice and video interaction with an AI bot.
  */
 class InstantVoiceClient {
-
   private declare rtviClient: RTVIClient;
   private connectBtn: HTMLButtonElement | null = null;
   private disconnectBtn: HTMLButtonElement | null = null;
@@ -54,8 +53,12 @@ class InstantVoiceClient {
    * Set up references to DOM elements and create necessary media elements
    */
   private setupDOMElements(): void {
-    this.connectBtn = document.getElementById('connect-btn') as HTMLButtonElement;
-    this.disconnectBtn = document.getElementById('disconnect-btn') as HTMLButtonElement;
+    this.connectBtn = document.getElementById(
+      'connect-btn'
+    ) as HTMLButtonElement;
+    this.disconnectBtn = document.getElementById(
+      'disconnect-btn'
+    ) as HTMLButtonElement;
     this.statusSpan = document.getElementById('connection-status');
     this.bufferingAudioSpan = document.getElementById('buffering-status');
     this.debugLog = document.getElementById('debug-log');
@@ -70,11 +73,10 @@ class InstantVoiceClient {
   }
 
   private initializeRTVIClient(): void {
-    const transport = new DailyTransport({
-      bufferLocalAudioUntilBotReady: true
-    });
     const RTVIConfig: RTVIClientOptions = {
-      transport,
+      transport: new DailyTransport({
+        bufferLocalAudioUntilBotReady: true,
+      }),
       params: {
         // The baseURL and endpoint of your bot server that the client will connect to
         baseUrl: 'http://localhost:7860',
@@ -95,7 +97,7 @@ class InstantVoiceClient {
           if (this.disconnectBtn) this.disconnectBtn.disabled = true;
           this.log('Client disconnected');
         },
-        onBotConnected: (participant: Participant)  => {
+        onBotConnected: (participant: Participant) => {
           this.log(`onBotConnected, timeTaken: ${Date.now() - this.startTime}`);
         },
         onBotReady: (data) => {
@@ -112,23 +114,29 @@ class InstantVoiceClient {
         onMessageError: (error) => console.error('Message error:', error),
         onError: (error) => console.error('Error:', error),
       },
-    }
+    };
 
     this.rtviClient = new RTVIClient(RTVIConfig);
-    this.rtviClient.registerHelper("transport", new InstantVoiceHelper({
-          callbacks: {
-            onAudioBufferingStarted: () => {
-              SoundUtils.beep()
-              this.updateBufferingStatus('Yes');
-              this.log(`onMicCaptureStarted, timeTaken: ${Date.now() - this.startTime}`);
-            },
-            onAudioBufferingStopped: () => {
-              this.updateBufferingStatus('No');
-              this.log(`onMicCaptureStopped, timeTaken: ${Date.now() - this.startTime}`);
-            }
-          }
-        }
-    ));
+    this.rtviClient.registerHelper(
+      'transport',
+      new InstantVoiceHelper({
+        callbacks: {
+          onAudioBufferingStarted: () => {
+            SoundUtils.beep();
+            this.updateBufferingStatus('Yes');
+            this.log(
+              `onMicCaptureStarted, timeTaken: ${Date.now() - this.startTime}`
+            );
+          },
+          onAudioBufferingStopped: () => {
+            this.updateBufferingStatus('No');
+            this.log(
+              `onMicCaptureStopped, timeTaken: ${Date.now() - this.startTime}`
+            );
+          },
+        },
+      })
+    );
     this.setupTrackListeners();
   }
 
@@ -198,7 +206,9 @@ class InstantVoiceClient {
 
     // Listen for tracks stopping
     this.rtviClient.on(RTVIEvent.TrackStopped, (track, participant) => {
-      this.log(`Track stopped: ${track.kind} from ${participant?.name || 'unknown'}`);
+      this.log(
+        `Track stopped: ${track.kind} from ${participant?.name || 'unknown'}`
+      );
     });
   }
 
@@ -208,7 +218,10 @@ class InstantVoiceClient {
    */
   private setupAudioTrack(track: MediaStreamTrack): void {
     this.log('Setting up audio track');
-    if (this.botAudio.srcObject && "getAudioTracks" in this.botAudio.srcObject) {
+    if (
+      this.botAudio.srcObject &&
+      'getAudioTracks' in this.botAudio.srcObject
+    ) {
       const oldTrack = this.botAudio.srcObject.getAudioTracks()[0];
       if (oldTrack?.id === track.id) return;
     }
@@ -246,8 +259,13 @@ class InstantVoiceClient {
   public async disconnect(): Promise<void> {
     try {
       await this.rtviClient.disconnect();
-      if (this.botAudio.srcObject && "getAudioTracks" in this.botAudio.srcObject) {
-        this.botAudio.srcObject.getAudioTracks().forEach((track) => track.stop());
+      if (
+        this.botAudio.srcObject &&
+        'getAudioTracks' in this.botAudio.srcObject
+      ) {
+        this.botAudio.srcObject
+          .getAudioTracks()
+          .forEach((track) => track.stop());
         this.botAudio.srcObject = null;
       }
     } catch (error) {

examples/instant-voice/client/javascript/yarn.lock

@@ -3,16 +3,16 @@
 
 
 "@babel/runtime@^7.12.5":
-  version "7.26.0"
-  resolved "https://registry.npmjs.org/@babel/runtime/-/runtime-7.26.0.tgz"
-  integrity sha512-FDSOghenHTiToteC/QRlv2q3DhPZ/oOXTBoirfWNx1Cx3TMVcGWQtMMmQcSvb/JjpNeGzx8Pq/b4fKEJuWm1sw==
+  version "7.27.0"
+  resolved "https://registry.npmjs.org/@babel/runtime/-/runtime-7.27.0.tgz"
+  integrity sha512-VtPOkrdPHZsKc/clNqyi9WUA8TINkZ4cGk63UUE3u4pmB2k+ZMQRDuIOagv8UVd6j7k0T3+RRIb7beKTebNbcw==
   dependencies:
     regenerator-runtime "^0.14.0"
 
-"@daily-co/daily-js@^0.73.0":
-  version "0.73.0"
-  resolved "https://registry.npmjs.org/@daily-co/daily-js/-/daily-js-0.73.0.tgz"
-  integrity sha512-Wz8c60hgmkx8fcEeDAi4L4J0rbafiihWKyXFyhYoFYPsw2OdChHpA4RYwIB+1enRws5IK+/HdmzFDYLQsB4A6w==
+"@daily-co/daily-js@^0.77.0":
+  version "0.77.0"
+  resolved "https://registry.npmjs.org/@daily-co/daily-js/-/daily-js-0.77.0.tgz"
+  integrity sha512-icNXKieKAkRR/C5dcPjrCkL1jQGFp5C5WtLHy5uHAdTztm+mo9wlPJuehbWaGOM3TV24mgWHZ/+8jOys1G0I4w==
   dependencies:
     "@babel/runtime" "^7.12.5"
     "@sentry/browser" "^8.33.1"
@@ -25,10 +25,10 @@
   resolved "https://registry.npmjs.org/@esbuild/darwin-arm64/-/darwin-arm64-0.24.0.tgz"
   integrity sha512-CKyDpRbK1hXwv79soeTJNHb5EiG6ct3efd/FTPdzOWdbZZfGhpbcqIpiD0+vwmpu0wTIL97ZRPZu8vUt46nBSw==
 
-"@pipecat-ai/client-js@^0.3.2", "@pipecat-ai/client-js@~0.3.2":
-  version "0.3.2"
-  resolved "https://registry.npmjs.org/@pipecat-ai/client-js/-/client-js-0.3.2.tgz"
-  integrity sha512-psunOVrJjPka2SWlq53vxVWCA0Vt8pSXsXtn8pOLC0YTKFsUx+b7Z6quYUJcDZjCe1aAg9cKETek3Xal3Co8Tg==
+"@pipecat-ai/client-js@^0.3.5", "@pipecat-ai/client-js@~0.3.5":
+  version "0.3.5"
+  resolved "https://registry.npmjs.org/@pipecat-ai/client-js/-/client-js-0.3.5.tgz"
+  integrity sha512-qmhnDjwY2XUtLjww35ShsYf5TF9BCuAk0tIj0oHjpTe6v6QOlgKQt8JVCAdc32p5ycouzSZOeDFtBd2aNWuq1g==
   dependencies:
     "@types/events" "^3.0.3"
     clone-deep "^4.0.1"
@@ -36,63 +36,63 @@
     typed-emitter "^2.1.0"
     uuid "^10.0.0"
 
-"@pipecat-ai/daily-transport@^0.3.5":
-  version "0.3.5"
-  resolved "https://registry.npmjs.org/@pipecat-ai/daily-transport/-/daily-transport-0.3.5.tgz"
-  integrity sha512-nJ0TvWPCqXPmU81U8cXOqk5mUEEvEuI06Mis+N0jN8KZUrNy1pP08iWbs07ObmIXdnQcoL+kQmHOerT4q/bF0w==
+"@pipecat-ai/daily-transport@^0.3.8":
+  version "0.3.8"
+  resolved "https://registry.npmjs.org/@pipecat-ai/daily-transport/-/daily-transport-0.3.8.tgz"
+  integrity sha512-AcRP51LGOsEA7DH0yPaZTqX/pozfTpkJbKC0itgWLv6uCM8dAnNtBj/m1CdFKRsE7QObhEOa+cRp5PUAyF4wCA==
   dependencies:
-    "@daily-co/daily-js" "^0.73.0"
+    "@daily-co/daily-js" "^0.77.0"
 
 "@rollup/rollup-darwin-arm64@4.28.0":
   version "4.28.0"
   resolved "https://registry.npmjs.org/@rollup/rollup-darwin-arm64/-/rollup-darwin-arm64-4.28.0.tgz"
   integrity sha512-lmKx9yHsppblnLQZOGxdO66gT77bvdBtr/0P+TPOseowE7D9AJoBw8ZDULRasXRWf1Z86/gcOdpBrV6VDUY36Q==
 
-"@sentry-internal/browser-utils@8.49.0":
-  version "8.49.0"
-  resolved "https://registry.npmjs.org/@sentry-internal/browser-utils/-/browser-utils-8.49.0.tgz"
-  integrity sha512-XkPHHdFqsN7EPaB+QGUOEmpFqXiqP67t2rRZ1HG1UwJoe0PhJEKNy7b4+WRwmT7ODSt+PvFk1gNBlJBpThwH7Q==
+"@sentry-internal/browser-utils@8.55.0":
+  version "8.55.0"
+  resolved "https://registry.npmjs.org/@sentry-internal/browser-utils/-/browser-utils-8.55.0.tgz"
+  integrity sha512-ROgqtQfpH/82AQIpESPqPQe0UyWywKJsmVIqi3c5Fh+zkds5LUxnssTj3yNd1x+kxaPDVB023jAP+3ibNgeNDw==
   dependencies:
-    "@sentry/core" "8.49.0"
+    "@sentry/core" "8.55.0"
 
-"@sentry-internal/feedback@8.49.0":
-  version "8.49.0"
-  resolved "https://registry.npmjs.org/@sentry-internal/feedback/-/feedback-8.49.0.tgz"
-  integrity sha512-v/wf7WvPxEvZUB7xrCnecI3fhevVo84hw8WlxgZIz6mLUHXEIX8xYWc9H8Yet/KKJ2uEB8GQ8aDsY6S1hVEIUA==
+"@sentry-internal/feedback@8.55.0":
+  version "8.55.0"
+  resolved "https://registry.npmjs.org/@sentry-internal/feedback/-/feedback-8.55.0.tgz"
+  integrity sha512-cP3BD/Q6pquVQ+YL+rwCnorKuTXiS9KXW8HNKu4nmmBAyf7urjs+F6Hr1k9MXP5yQ8W3yK7jRWd09Yu6DHWOiw==
   dependencies:
-    "@sentry/core" "8.49.0"
+    "@sentry/core" "8.55.0"
 
-"@sentry-internal/replay-canvas@8.49.0":
-  version "8.49.0"
-  resolved "https://registry.npmjs.org/@sentry-internal/replay-canvas/-/replay-canvas-8.49.0.tgz"
-  integrity sha512-/yXxI7f+Wu24FIYoRE7A0AidNxORuhAyPzb5ey1wFqMXP72nG8dXhOpcl0w+bi554FkqkLjdeUDhSOBWYZXH9g==
+"@sentry-internal/replay-canvas@8.55.0":
+  version "8.55.0"
+  resolved "https://registry.npmjs.org/@sentry-internal/replay-canvas/-/replay-canvas-8.55.0.tgz"
+  integrity sha512-nIkfgRWk1091zHdu4NbocQsxZF1rv1f7bbp3tTIlZYbrH62XVZosx5iHAuZG0Zc48AETLE7K4AX9VGjvQj8i9w==
   dependencies:
-    "@sentry-internal/replay" "8.49.0"
-    "@sentry/core" "8.49.0"
+    "@sentry-internal/replay" "8.55.0"
+    "@sentry/core" "8.55.0"
 
-"@sentry-internal/replay@8.49.0":
-  version "8.49.0"
-  resolved "https://registry.npmjs.org/@sentry-internal/replay/-/replay-8.49.0.tgz"
-  integrity sha512-BDiiCBxskkktTd6FNplBc9V8l14R4T/AwRIZj2itX4xnuHewTTDjVbeyvGol4roA4r+V0Mzoi31hLEGI6yFQ5Q==
+"@sentry-internal/replay@8.55.0":
+  version "8.55.0"
+  resolved "https://registry.npmjs.org/@sentry-internal/replay/-/replay-8.55.0.tgz"
+  integrity sha512-roCDEGkORwolxBn8xAKedybY+Jlefq3xYmgN2fr3BTnsXjSYOPC7D1/mYqINBat99nDtvgFvNfRcZPiwwZ1hSw==
   dependencies:
-    "@sentry-internal/browser-utils" "8.49.0"
-    "@sentry/core" "8.49.0"
+    "@sentry-internal/browser-utils" "8.55.0"
+    "@sentry/core" "8.55.0"
 
 "@sentry/browser@^8.33.1":
-  version "8.49.0"
-  resolved "https://registry.npmjs.org/@sentry/browser/-/browser-8.49.0.tgz"
-  integrity sha512-dS4Sw2h8EixHeXOIR++XEVMTen6xCGcIQ/XhJbsjqvddXeIijW0WkxSeTfPkfs0dsqFHSisWmlmo0xhHbXvEsQ==
+  version "8.55.0"
+  resolved "https://registry.npmjs.org/@sentry/browser/-/browser-8.55.0.tgz"
+  integrity sha512-1A31mCEWCjaMxJt6qGUK+aDnLDcK6AwLAZnqpSchNysGni1pSn1RWSmk9TBF8qyTds5FH8B31H480uxMPUJ7Cw==
   dependencies:
-    "@sentry-internal/browser-utils" "8.49.0"
-    "@sentry-internal/feedback" "8.49.0"
-    "@sentry-internal/replay" "8.49.0"
-    "@sentry-internal/replay-canvas" "8.49.0"
-    "@sentry/core" "8.49.0"
+    "@sentry-internal/browser-utils" "8.55.0"
+    "@sentry-internal/feedback" "8.55.0"
+    "@sentry-internal/replay" "8.55.0"
+    "@sentry-internal/replay-canvas" "8.55.0"
+    "@sentry/core" "8.55.0"
 
-"@sentry/core@8.49.0":
-  version "8.49.0"
-  resolved "https://registry.npmjs.org/@sentry/core/-/core-8.49.0.tgz"
-  integrity sha512-/OAm6LdHhh8TvfDAucWfSJV7M03IOHrJm5LVjrrKr4gwQ1HKd4CDbARsBbPwHIzSRAle0IgG3sbJxEvv52JUIw==
+"@sentry/core@8.55.0":
+  version "8.55.0"
+  resolved "https://registry.npmjs.org/@sentry/core/-/core-8.55.0.tgz"
+  integrity sha512-6g7jpbefjHYs821Z+EBJ8r4Z7LT5h80YSWRJaylGS4nW5W5Z2KXzpdnyFarv37O7QjauzVC2E+PABmpkw5/JGA==
 
 "@swc/core-darwin-arm64@1.10.14":
   version "1.10.14"

examples/instant-voice/server/src/single_bot.py

@@ -15,7 +15,7 @@ from pipecat.pipeline.pipeline import Pipeline
 from pipecat.pipeline.runner import PipelineRunner
 from pipecat.pipeline.task import PipelineParams, PipelineTask
 from pipecat.processors.aggregators.openai_llm_context import OpenAILLMContext
-from pipecat.processors.frameworks.rtvi import RTVIConfig, RTVIProcessor
+from pipecat.processors.frameworks.rtvi import RTVIConfig, RTVIObserver, RTVIProcessor
 from pipecat.services.gemini_multimodal_live import GeminiMultimodalLiveLLMService
 from pipecat.transports.services.daily import DailyParams, DailyTransport
 
@@ -93,7 +93,7 @@ async def main():
     task = PipelineTask(
         pipeline,
         params=PipelineParams(allow_interruptions=True),
-        observers=[rtvi.observer()],
+        observers=[RTVIObserver(rtvi)],
     )
 
     @rtvi.event_handler("on_client_ready")

examples/news-chatbot/client/javascript/package.json

@@ -15,7 +15,7 @@
     "vite": "^6.0.9"
   },
   "dependencies": {
-    "@pipecat-ai/client-js": "^0.3.2",
-    "@pipecat-ai/daily-transport": "^0.3.4"
+    "@pipecat-ai/client-js": "^0.3.5",
+    "@pipecat-ai/daily-transport": "^0.3.8"
   }
 }

examples/news-chatbot/client/javascript/src/app.js

@@ -16,30 +16,34 @@
  * - Browser with WebRTC support
  */
 
-import {LogLevel, RTVIClient, RTVIClientHelper, RTVIEvent} from '@pipecat-ai/client-js';
+import {
+  LogLevel,
+  RTVIClient,
+  RTVIClientHelper,
+  RTVIEvent,
+} from '@pipecat-ai/client-js';
 import { DailyTransport } from '@pipecat-ai/daily-transport';
 
 class SearchResponseHelper extends RTVIClientHelper {
-
   constructor(contentPanel) {
-    super()
-    this.contentPanel = contentPanel
+    super();
+    this.contentPanel = contentPanel;
   }
 
   handleMessage(rtviMessage) {
-    console.log("SearchResponseHelper, received message:", rtviMessage)
+    console.log('SearchResponseHelper, received message:', rtviMessage);
     if (rtviMessage.data) {
       // Clear existing content
-      this.contentPanel.innerHTML = "";
+      this.contentPanel.innerHTML = '';
 
       // Create a container for all content
       const contentContainer = document.createElement('div');
-      contentContainer.className = "content-container";
+      contentContainer.className = 'content-container';
 
       // Add the search_result
       if (rtviMessage.data.search_result) {
         const searchResultDiv = document.createElement('div');
-        searchResultDiv.className = "search-result";
+        searchResultDiv.className = 'search-result';
         searchResultDiv.textContent = rtviMessage.data.search_result;
         contentContainer.appendChild(searchResultDiv);
       }
@@ -47,18 +51,18 @@ class SearchResponseHelper extends RTVIClientHelper {
       // Add the sources
       if (rtviMessage.data.origins) {
         const sourcesDiv = document.createElement('div');
-        sourcesDiv.className = "sources";
+        sourcesDiv.className = 'sources';
 
         const sourcesTitle = document.createElement('h3');
-        sourcesTitle.className = "sources-title";
-        sourcesTitle.textContent = "Sources:";
+        sourcesTitle.className = 'sources-title';
+        sourcesTitle.textContent = 'Sources:';
         sourcesDiv.appendChild(sourcesTitle);
 
-        rtviMessage.data.origins.forEach(origin => {
+        rtviMessage.data.origins.forEach((origin) => {
           const sourceLink = document.createElement('a');
-          sourceLink.className = "source-link";
+          sourceLink.className = 'source-link';
           sourceLink.href = origin.site_uri;
-          sourceLink.target = "_blank";
+          sourceLink.target = '_blank';
           sourceLink.textContent = origin.site_title;
           sourcesDiv.appendChild(sourceLink);
         });
@@ -69,7 +73,7 @@ class SearchResponseHelper extends RTVIClientHelper {
       // Add the rendered_content in an iframe
       if (rtviMessage.data.rendered_content) {
         const iframe = document.createElement('iframe');
-        iframe.className = "iframe-container";
+        iframe.className = 'iframe-container';
         iframe.srcdoc = rtviMessage.data.rendered_content;
         contentContainer.appendChild(iframe);
       }
@@ -80,7 +84,7 @@ class SearchResponseHelper extends RTVIClientHelper {
   }
 
   getMessageTypes() {
-    return ["bot-llm-search-response"]
+    return ['bot-llm-search-response'];
   }
 }
 
@@ -105,7 +109,9 @@ class ChatbotClient {
     this.disconnectBtn = document.getElementById('disconnect-btn');
     this.statusSpan = document.getElementById('connection-status');
     this.debugLog = document.getElementById('debug-log');
-    this.searchResultContainer = document.getElementById('search-result-container');
+    this.searchResultContainer = document.getElementById(
+      'search-result-container'
+    );
 
     // Create an audio element for bot's voice output
     this.botAudio = document.createElement('audio');
@@ -211,12 +217,9 @@ class ChatbotClient {
    */
   async connect() {
     try {
-      // Create a new Daily transport for WebRTC communication
-      const transport = new DailyTransport();
-
-      // Initialize the RTVI client with our configuration
+      // Initialize the RTVI client with a Daily WebRTC transport and our configuration
       this.rtviClient = new RTVIClient({
-        transport,
+        transport: new DailyTransport(),
         params: {
           // The baseURL and endpoint of your bot server that the client will connect to
           baseUrl: 'http://localhost:7860',
@@ -279,7 +282,10 @@ class ChatbotClient {
         },
       });
       //this.rtviClient.setLogLevel(LogLevel.DEBUG)
-      this.rtviClient.registerHelper("llm", new SearchResponseHelper(this.searchResultContainer))
+      this.rtviClient.registerHelper(
+        'llm',
+        new SearchResponseHelper(this.searchResultContainer)
+      );
 
       // Set up listeners for media track events
       this.setupTrackListeners();

examples/p2p-webrtc/video-transform/client/ios/.gitignore

@@ -0,0 +1,2 @@
+/SimpleChatbot.xcodeproj/xcuserdata/
+/SimpleChatbot.xcodeproj/project.xcworkspace/xcuserdata/

examples/p2p-webrtc/video-transform/client/ios/README.md

@@ -0,0 +1,18 @@
+# iOS implementation
+
+Basic implementation using the [Pipecat iOS SDK](https://docs.pipecat.ai/client/ios/introduction).
+
+## Prerequisites
+
+1. Run the bot server. See the [server README](../../server).
+2. Install [Xcode](https://developer.apple.com/xcode/), and set up your device [to run your own applications](https://developer.apple.com/documentation/xcode/distributing-your-app-to-registered-devices).
+
+## Running locally
+
+1. Clone this repository locally.
+2. Open the SimpleChatbot.xcodeproj in Xcode.
+3. Tell Xcode to update its Package Dependencies by clicking File -> Packages -> Update to Latest Package Versions.
+4. Build the project.
+5. Run the project on your device.
+6. Connect to the URL you are testing.
+

examples/p2p-webrtc/video-transform/client/ios/SimpleChatbot.xcodeproj/project.pbxproj

@@ -0,0 +1,727 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 56;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		90031FA72C616EE700408370 /* SimpleChatbotApp.swift in Sources */ = {isa = PBXBuildFile; fileRef = 90031FA62C616EE700408370 /* SimpleChatbotApp.swift */; };
+		90031FA92C616EE700408370 /* PreJoinView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 90031FA82C616EE700408370 /* PreJoinView.swift */; };
+		90031FAB2C616EE800408370 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 90031FAA2C616EE800408370 /* Assets.xcassets */; };
+		90031FAE2C616EE800408370 /* Preview Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 90031FAD2C616EE800408370 /* Preview Assets.xcassets */; };
+		90031FB82C616EE900408370 /* SimpleChatbotTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 90031FB72C616EE900408370 /* SimpleChatbotTests.swift */; };
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+		90ABB99D2C73C2D1000D9CC7 /* CallContainerModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = 90ABB99C2C73C2D1000D9CC7 /* CallContainerModel.swift */; };
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+		90ABB9A82C74EAB1000D9CC7 /* SettingsManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = 90ABB9A72C74EAB1000D9CC7 /* SettingsManager.swift */; };
+/* End PBXBuildFile section */
+
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+		90031FB42C616EE900408370 /* PBXContainerItemProxy */ = {
+			isa = PBXContainerItemProxy;
+			containerPortal = 90031F9B2C616EE700408370 /* Project object */;
+			proxyType = 1;
+			remoteGlobalIDString = 90031FA22C616EE700408370;
+			remoteInfo = SimpleChatbot;
+		};
+		90031FBE2C616EE900408370 /* PBXContainerItemProxy */ = {
+			isa = PBXContainerItemProxy;
+			containerPortal = 90031F9B2C616EE700408370 /* Project object */;
+			proxyType = 1;
+			remoteGlobalIDString = 90031FA22C616EE700408370;
+			remoteInfo = SimpleChatbot;
+		};
+/* End PBXContainerItemProxy section */
+
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+		90031FA62C616EE700408370 /* SimpleChatbotApp.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SimpleChatbotApp.swift; sourceTree = "<group>"; };
+		90031FA82C616EE700408370 /* PreJoinView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = PreJoinView.swift; sourceTree = "<group>"; };
+		90031FAA2C616EE800408370 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		90031FAD2C616EE800408370 /* Preview Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = "Preview Assets.xcassets"; sourceTree = "<group>"; };
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+		90ABB9992C73A6A9000D9CC7 /* MockCallContainerModel.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MockCallContainerModel.swift; sourceTree = "<group>"; };
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+		90ABB9A52C74EA8A000D9CC7 /* SettingsPreference.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SettingsPreference.swift; sourceTree = "<group>"; };
+		90ABB9A72C74EAB1000D9CC7 /* SettingsManager.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SettingsManager.swift; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
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+		90031FA02C616EE700408370 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
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+				90383A912D9C357F00D0DDA3 /* PipecatClientIOSSmallWebrtc in Frameworks */,
+				90383A9B2DA4620800D0DDA3 /* PipecatClientIOSSmallWebrtc in Frameworks */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+		90031FB02C616EE900408370 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+		90031FBA2C616EE900408370 /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		90031F9A2C616EE700408370 = {
+			isa = PBXGroup;
+			children = (
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+				90031FB62C616EE900408370 /* SimpleChatbotTests */,
+				90031FC02C616EE900408370 /* SimpleChatbotUITests */,
+				90031FA42C616EE700408370 /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		90031FA42C616EE700408370 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				90031FA32C616EE700408370 /* SimpleChatbot.app */,
+				90031FB32C616EE900408370 /* SimpleChatbotTests.xctest */,
+				90031FBD2C616EE900408370 /* SimpleChatbotUITests.xctest */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		90031FA52C616EE700408370 /* SimpleChatbot */ = {
+			isa = PBXGroup;
+			children = (
+				90383A952D9C35BD00D0DDA3 /* types */,
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+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = YES;
+				CODE_SIGN_STYLE = Automatic;
+				CURRENT_PROJECT_VERSION = 1;
+				DEVELOPMENT_TEAM = EEBGKV9N3N;
+				GENERATE_INFOPLIST_FILE = YES;
+				MARKETING_VERSION = 1.0;
+				PRODUCT_BUNDLE_IDENTIFIER = co.daily.SimpleChatbotUITests;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_EMIT_LOC_STRINGS = NO;
+				SWIFT_VERSION = 5.0;
+				TARGETED_DEVICE_FAMILY = "1,2";
+				TEST_TARGET_NAME = SimpleChatbot;
+			};
+			name = Debug;
+		};
+		90031FCF2C616EE900408370 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = YES;
+				CODE_SIGN_STYLE = Automatic;
+				CURRENT_PROJECT_VERSION = 1;
+				DEVELOPMENT_TEAM = EEBGKV9N3N;
+				GENERATE_INFOPLIST_FILE = YES;
+				MARKETING_VERSION = 1.0;
+				PRODUCT_BUNDLE_IDENTIFIER = co.daily.SimpleChatbotUITests;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_EMIT_LOC_STRINGS = NO;
+				SWIFT_VERSION = 5.0;
+				TARGETED_DEVICE_FAMILY = "1,2";
+				TEST_TARGET_NAME = SimpleChatbot;
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		90031F9E2C616EE700408370 /* Build configuration list for PBXProject "SimpleChatbot" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				90031FC52C616EE900408370 /* Debug */,
+				90031FC62C616EE900408370 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		90031FC72C616EE900408370 /* Build configuration list for PBXNativeTarget "SimpleChatbot" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				90031FC82C616EE900408370 /* Debug */,
+				90031FC92C616EE900408370 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		90031FCA2C616EE900408370 /* Build configuration list for PBXNativeTarget "SimpleChatbotTests" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				90031FCB2C616EE900408370 /* Debug */,
+				90031FCC2C616EE900408370 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		90031FCD2C616EE900408370 /* Build configuration list for PBXNativeTarget "SimpleChatbotUITests" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				90031FCE2C616EE900408370 /* Debug */,
+				90031FCF2C616EE900408370 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+
+/* Begin XCRemoteSwiftPackageReference section */
+		90383A992DA4620800D0DDA3 /* XCRemoteSwiftPackageReference "pipecat-client-ios-small-webrtc" */ = {
+			isa = XCRemoteSwiftPackageReference;
+			repositoryURL = "https://github.com/pipecat-ai/pipecat-client-ios-small-webrtc";
+			requirement = {
+				kind = upToNextMajorVersion;
+				minimumVersion = 0.0.1;
+			};
+		};
+/* End XCRemoteSwiftPackageReference section */
+
+/* Begin XCSwiftPackageProductDependency section */
+		90383A902D9C357F00D0DDA3 /* PipecatClientIOSSmallWebrtc */ = {
+			isa = XCSwiftPackageProductDependency;
+			productName = PipecatClientIOSSmallWebrtc;
+		};
+		90383A9A2DA4620800D0DDA3 /* PipecatClientIOSSmallWebrtc */ = {
+			isa = XCSwiftPackageProductDependency;
+			package = 90383A992DA4620800D0DDA3 /* XCRemoteSwiftPackageReference "pipecat-client-ios-small-webrtc" */;
+			productName = PipecatClientIOSSmallWebrtc;
+		};
+/* End XCSwiftPackageProductDependency section */
+	};
+	rootObject = 90031F9B2C616EE700408370 /* Project object */;
+}

examples/p2p-webrtc/video-transform/client/ios/SimpleChatbot.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>

examples/p2p-webrtc/video-transform/client/ios/SimpleChatbot.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEWorkspaceSharedSettings_AutocreateContextsIfNeeded</key>
+	<false/>
+</dict>
+</plist>

examples/p2p-webrtc/video-transform/client/ios/SimpleChatbot.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved

@@ -0,0 +1,33 @@
+{
+  "originHash" : "77cb3fee4071811f880e69dbcd5a8ba01711a73372960391d6366c4c3a0d36eb",
+  "pins" : [
+    {
+      "identity" : "pipecat-client-ios",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/pipecat-ai/pipecat-client-ios.git",
+      "state" : {
+        "revision" : "992641fb5f7d1a794ecfc33babb5fe36e2a8ffdd",
+        "version" : "0.3.5"
+      }
+    },
+    {
+      "identity" : "pipecat-client-ios-small-webrtc",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/pipecat-ai/pipecat-client-ios-small-webrtc",
+      "state" : {
+        "revision" : "a6e4516b1fcbed772ca97a9616dddc9329097958",
+        "version" : "0.0.1"
+      }
+    },
+    {
+      "identity" : "webrtc",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/stasel/WebRTC",
+      "state" : {
+        "revision" : "5b2eb61cace7d62726b29a38b768b07d6bc55c45",
+        "version" : "134.0.0"
+      }
+    }
+  ],
+  "version" : 3
+}

examples/p2p-webrtc/video-transform/client/ios/SimpleChatbot.xcodeproj/xcshareddata/xcschemes/SimpleChatbot.xcscheme

@@ -0,0 +1,78 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "1540"
+   version = "1.7">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES"
+      buildArchitectures = "Automatic">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "90031FA22C616EE700408370"
+               BuildableName = "SimpleChatbot.app"
+               BlueprintName = "SimpleChatbot"
+               ReferencedContainer = "container:SimpleChatbot.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      shouldAutocreateTestPlan = "YES">
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "90031FA22C616EE700408370"
+            BuildableName = "SimpleChatbot.app"
+            BlueprintName = "SimpleChatbot"
+            ReferencedContainer = "container:SimpleChatbot.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "90031FA22C616EE700408370"
+            BuildableName = "SimpleChatbot.app"
+            BlueprintName = "SimpleChatbot"
+            ReferencedContainer = "container:SimpleChatbot.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>

examples/p2p-webrtc/video-transform/client/ios/SimpleChatbot/Assets.xcassets/AppIcon.appiconset/Contents.json

@@ -0,0 +1,14 @@
+{
+  "images" : [
+    {
+      "filename" : "appstore.png",
+      "idiom" : "universal",
+      "platform" : "ios",
+      "size" : "1024x1024"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

examples/p2p-webrtc/video-transform/client/ios/SimpleChatbot/Assets.xcassets/Contents.json

@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

examples/p2p-webrtc/video-transform/client/ios/SimpleChatbot/Assets.xcassets/pipecat.imageset/Contents.json

@@ -0,0 +1,21 @@
+{
+  "images" : [
+    {
+      "filename" : "Square Black.svg",
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

examples/p2p-webrtc/video-transform/client/ios/SimpleChatbot/Assets.xcassets/pipecat.imageset/Square Black.svg

@@ -0,0 +1,8 @@
+<svg width="450" height="450" viewBox="0 0 450 450" fill="none" xmlns="http://www.w3.org/2000/svg">
+<rect width="450" height="450" fill="white"/>
+<path d="M104.772 129.77C109.448 128.01 114.725 129.331 118.02 133.086L160.936 182H289.064L331.98 133.086C335.275 129.331 340.552 128.01 345.228 129.77C349.904 131.531 353 136.004 353 141V249H391V273H329V172.873L303.52 201.915C301.242 204.511 297.955 206 294.5 206H155.5C152.045 206 148.758 204.511 146.48 201.915L121 172.873V273H59V249H97V141C97 136.004 100.096 131.531 104.772 129.77Z" fill="black"/>
+<path d="M329 297H391V321H329V297Z" fill="black"/>
+<path d="M59 297H121V321H59V297Z" fill="black"/>
+<path d="M187 257C187 265.837 179.837 273 171 273C162.163 273 155 265.837 155 257C155 248.164 162.163 241 171 241C179.837 241 187 248.164 187 257Z" fill="black"/>
+<path d="M295 257C295 265.837 287.837 273 279 273C270.163 273 263 265.837 263 257C263 248.164 270.163 241 279 241C287.837 241 295 248.164 295 257Z" fill="black"/>
+</svg>

examples/p2p-webrtc/video-transform/client/ios/SimpleChatbot/Assets.xcassets/vision.imageset/Contents.json

@@ -0,0 +1,21 @@
+{
+  "images" : [
+    {
+      "filename" : "vision.svg",
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

examples/p2p-webrtc/video-transform/client/ios/SimpleChatbot/Assets.xcassets/vision.imageset/vision.svg

@@ -0,0 +1,9 @@
+<svg width="32" height="32" viewBox="0 0 32 32" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M4 9.33333V6.66667C4 5.95942 4.28095 5.28115 4.78105 4.78105C5.28115 4.28095 5.95942 4 6.66667 4H9.33333" stroke="#15803D" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/>
+<path d="M22.6667 4H25.3334C26.0407 4 26.7189 4.28095 27.219 4.78105C27.7191 5.28115 28.0001 5.95942 28.0001 6.66667V9.33333" stroke="#15803D" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/>
+<path d="M28.0001 22.6667V25.3333C28.0001 26.0406 27.7191 26.7188 27.219 27.2189C26.7189 27.719 26.0407 28 25.3334 28H22.6667" stroke="#15803D" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/>
+<path d="M9.33333 28H6.66667C5.95942 28 5.28115 27.719 4.78105 27.2189C4.28095 26.7188 4 26.0406 4 25.3333V22.6667" stroke="#15803D" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/>
+<path d="M16.0001 18.2857C17.2624 18.2857 18.2858 17.2624 18.2858 16C18.2858 14.7376 17.2624 13.7143 16.0001 13.7143C14.7377 13.7143 13.7144 14.7376 13.7144 16C13.7144 17.2624 14.7377 18.2857 16.0001 18.2857Z" stroke="#15803D" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/>
+<path d="M25.2588 16.44C25.3584 16.1551 25.3584 15.8449 25.2588 15.56C24.5081 13.7206 23.2265 12.1464 21.5775 11.0383C19.9285 9.93028 17.9868 9.3385 16.0001 9.3385C14.0134 9.3385 12.0717 9.93028 10.4227 11.0383C8.7737 12.1464 7.49212 13.7206 6.74144 15.56C6.64185 15.8449 6.64185 16.1551 6.74144 16.44C7.49212 18.2794 8.7737 19.8536 10.4227 20.9616C12.0717 22.0697 14.0134 22.6615 16.0001 22.6615C17.9868 22.6615 19.9285 22.0697 21.5775 20.9616C23.2265 19.8536 24.5081 18.2794 25.2588 16.44Z" stroke="#15803D" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/>
+</svg>
+

examples/p2p-webrtc/video-transform/client/ios/SimpleChatbot/Info.plist

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>UIBackgroundModes</key>
+	<array>
+		<string>voip</string>
+	</array>
+	<key>NSCameraUsageDescription</key>
+    <string>Camera is necessary for transmitting video in a call</string>
+    <key>NSMicrophoneUsageDescription</key>
+    <string>Microphone is necessary for transmitting audio in a call</string>
+    <key>NSAppTransportSecurity</key>
+    <dict>
+        <key>NSAllowsLocalNetworking</key>
+        <true/>
+    </dict>
+</dict>
+</plist>

examples/p2p-webrtc/video-transform/client/ios/SimpleChatbot/Preview Content/Preview Assets.xcassets/Contents.json

@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

examples/p2p-webrtc/video-transform/client/ios/SimpleChatbot/SimpleChatbotApp.swift

@@ -0,0 +1,18 @@
+import SwiftUI
+
+@main
+struct SimpleChatbotApp: App {
+
+    @StateObject var callContainerModel = CallContainerModel()
+
+    var body: some Scene {
+        WindowGroup {
+            if (!callContainerModel.isInCall) {
+                PreJoinView().environmentObject(callContainerModel)
+            } else {
+                MeetingView().environmentObject(callContainerModel)
+            }
+        }
+    }
+
+}

examples/p2p-webrtc/video-transform/client/ios/SimpleChatbot/model/CallContainerModel.swift

@@ -0,0 +1,284 @@
+import SwiftUI
+
+import PipecatClientIOSSmallWebrtc
+import PipecatClientIOS
+
+class CallContainerModel: ObservableObject {
+    
+    @Published var voiceClientStatus: String = TransportState.disconnected.description
+    @Published var isInCall: Bool = false
+    @Published var isBotReady: Bool = false
+    
+    @Published var isMicEnabled: Bool = false
+    @Published var isCamEnabled: Bool = false
+    @Published var localCamId: MediaTrackId? = nil
+    @Published var botCamId: MediaTrackId? = nil
+    
+    @Published var toastMessage: String? = nil
+    @Published var showToast: Bool = false
+    
+    @Published var messages: [LiveMessage] = []
+    @Published var liveBotMessage: LiveMessage?
+    @Published var liveUserMessage: LiveMessage?
+    
+    var rtviClientIOS: RTVIClient?
+    
+    @Published var selectedMic: MediaDeviceId? = nil {
+        didSet {
+            guard let selectedMic else { return } // don't store nil
+            var settings = SettingsManager.getSettings()
+            settings.selectedMic = selectedMic.id
+            SettingsManager.updateSettings(settings: settings)
+        }
+    }
+    @Published var availableMics: [MediaDeviceInfo] = []
+    
+    init() {
+        // Changing the log level
+        PipecatClientIOS.setLogLevel(.warn)
+        PipecatClientIOSSmallWebrtc.setLogLevel(.info)
+    }
+    
+    @MainActor
+    func connect(backendURL: String) {
+        self.resetLiveMessages()
+        
+        let baseUrl = backendURL.trimmingCharacters(in: .whitespacesAndNewlines)
+        if(baseUrl.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty){
+            self.showError(message: "Need to fill the backendURL")
+            return
+        }
+        
+        let currentSettings = SettingsManager.getSettings()
+        let rtviClientOptions = RTVIClientOptions.init(
+            enableMic: currentSettings.enableMic,
+            enableCam: currentSettings.enableCam,
+            params: RTVIClientParams(
+                config: [
+                    .init(
+                        service: SmallWebRTCTransport.SERVICE_NAME,
+                        options: [
+                            .init(name: "server_url", value: .string(baseUrl))
+                        ]
+                    )
+                ]
+            )
+        )
+        self.rtviClientIOS = RTVIClient.init(
+            transport: SmallWebRTCTransport.init(options: rtviClientOptions),
+            options: rtviClientOptions
+        )
+        self.rtviClientIOS?.delegate = self
+        
+        // Registering the llm helper, we will need this to handle the function calling
+        let llmHelper = try? self.rtviClientIOS?.registerHelper(service: "llm", helper: LLMHelper.self)
+        llmHelper?.delegate = self
+        
+        self.rtviClientIOS?.start() { result in
+            switch result {
+            case .failure(let error):
+                self.showError(message: error.localizedDescription)
+                self.rtviClientIOS = nil
+            case .success():
+                // Apply initial mic preference
+                if let selectedMic = SettingsManager.getSettings().selectedMic {
+                    self.selectMic(MediaDeviceId(id: selectedMic))
+                }
+                // Populate available devices list
+                self.availableMics = self.rtviClientIOS?.getAllMics() ?? []
+            }
+        }
+        self.saveCredentials(backendURL: backendURL)
+    }
+    
+    @MainActor
+    func disconnect() {
+        self.rtviClientIOS?.disconnect(completion: nil)
+        self.rtviClientIOS?.release()
+        self.rtviClientIOS = nil
+    }
+    
+    func showError(message: String) {
+        self.toastMessage = message
+        self.showToast = true
+        // Hide the toast after 5 seconds
+        DispatchQueue.main.asyncAfter(deadline: .now() + 5) {
+            self.showToast = false
+            self.toastMessage = nil
+        }
+    }
+    
+    @MainActor
+    func toggleMicInput() {
+        self.rtviClientIOS?.enableMic(enable: !self.isMicEnabled) { result in
+            switch result {
+            case .success():
+                self.isMicEnabled = self.rtviClientIOS?.isMicEnabled ?? false
+            case .failure(let error):
+                self.showError(message: error.localizedDescription)
+            }
+        }
+    }
+    
+    @MainActor
+    func toggleCamInput() {
+        self.rtviClientIOS?.enableCam(enable: !self.isCamEnabled) { result in
+            switch result {
+            case .success():
+                self.isCamEnabled = self.rtviClientIOS?.isCamEnabled ?? false
+            case .failure(let error):
+                self.showError(message: error.localizedDescription)
+            }
+        }
+    }
+    
+    func saveCredentials(backendURL: String) {
+        var currentSettings = SettingsManager.getSettings()
+        currentSettings.backendURL = backendURL
+        // Saving the settings
+        SettingsManager.updateSettings(settings: currentSettings)
+    }
+    
+    @MainActor
+    func selectMic(_ mic: MediaDeviceId) {
+        self.selectedMic = mic
+        self.rtviClientIOS?.updateMic(micId: mic, completion: nil)
+    }
+    
+    private func createLiveMessage(content:String = "", type:MessageType) {
+        // Creating a new one
+        DispatchQueue.main.async {
+            let liveMessage = LiveMessage(content: content, type: type, updatedAt: Date())
+            self.messages.append(liveMessage)
+            if type == .bot {
+                self.liveBotMessage = liveMessage
+            } else if type == .user {
+                self.liveUserMessage = liveMessage
+            }
+        }
+    }
+    
+    private func appendTextToLiveMessage(fromBot: Bool, content:String) {
+        DispatchQueue.main.async {
+            // Updating the last message with the new content
+            if fromBot {
+                self.liveBotMessage?.content += content
+            } else {
+                self.liveUserMessage?.content += content
+            }
+        }
+    }
+    
+    private func resetLiveMessages() {
+        DispatchQueue.main.async {
+            self.messages = []
+        }
+    }
+}
+
+extension CallContainerModel:RTVIClientDelegate, LLMHelperDelegate {
+    
+    private func handleEvent(eventName: String, eventValue: Any? = nil) {
+        if let value = eventValue {
+            print("Pipecat Demo, received event: \(eventName), value:\(value)")
+        } else {
+            print("Pipecat Demo, received event: \(eventName)")
+        }
+    }
+    
+    func onTransportStateChanged(state: TransportState) {
+        Task { @MainActor in
+            self.handleEvent(eventName: "onTransportStateChanged", eventValue: state)
+            self.voiceClientStatus = state.description
+            self.isInCall = ( state == .connecting || state == .connected || state == .ready || state == .authenticating )
+            self.createLiveMessage(content: state.description, type: .system)
+        }
+    }
+    
+    func onBotReady(botReadyData: BotReadyData) {
+        Task { @MainActor in
+            self.handleEvent(eventName: "onBotReady")
+            self.isBotReady = true
+        }
+    }
+    
+    func onConnected() {
+        Task { @MainActor in
+            self.handleEvent(eventName: "onConnected")
+            self.isMicEnabled = self.rtviClientIOS?.isMicEnabled ?? false
+            self.isCamEnabled = self.rtviClientIOS?.isCamEnabled ?? false
+        }
+    }
+    
+    func onDisconnected() {
+        Task { @MainActor in
+            self.handleEvent(eventName: "onDisconnected")
+            self.isBotReady = false
+        }
+    }
+    
+    func onError(message: String) {
+        Task { @MainActor in
+            self.handleEvent(eventName: "onError", eventValue: message)
+            self.showError(message: message)
+        }
+    }
+    
+    func onAvailableMicsUpdated(mics: [MediaDeviceInfo]) {
+        Task { @MainActor in
+            self.availableMics = mics
+        }
+    }
+    
+    func onMicUpdated(mic: MediaDeviceInfo?) {
+        Task { @MainActor in
+            self.selectedMic = mic?.id
+        }
+    }
+    
+    func onBotTranscript(data: String) {
+        self.handleEvent(eventName: "onBotTranscript", eventValue: data)
+    }
+    
+    func onTracksUpdated(tracks: Tracks) {
+        self.handleEvent(eventName: "onTracksUpdated", eventValue: tracks)
+        Task { @MainActor in
+            self.localCamId = tracks.local.video
+            self.botCamId = tracks.bot?.video ?? nil
+        }
+    }
+    
+    func onUserStartedSpeaking() {
+        self.createLiveMessage(content: "User started speaking", type: .system)
+        self.handleEvent(eventName: "onUserStartedSpeaking")
+        self.createLiveMessage(type: .user)
+    }
+    
+    func onUserStoppedSpeaking() {
+        self.createLiveMessage(content: "User stopped speaking", type: .system)
+        self.handleEvent(eventName: "onUserStoppedSpeaking")
+    }
+    
+    func onBotStartedSpeaking() {
+        self.createLiveMessage(content: "Bot started speaking", type: .system)
+        self.handleEvent(eventName: "onBotStartedSpeaking")
+        self.createLiveMessage(type: .bot)
+    }
+    
+    func onBotStoppedSpeaking() {
+        self.createLiveMessage(content: "Bot stopped speaking", type: .system)
+        self.handleEvent(eventName: "onBotStoppedSpeaking")
+    }
+    
+    func onUserTranscript(data: Transcript) {
+        if data.final ?? false {
+            self.handleEvent(eventName: "onUserTranscript", eventValue: data.text)
+            self.appendTextToLiveMessage(fromBot: false, content: data.text)
+        }
+    }
+    
+    func onBotTTSText(data: BotTTSText) {
+        self.appendTextToLiveMessage(fromBot: true, content: data.text)
+    }
+    
+}

examples/p2p-webrtc/video-transform/client/ios/SimpleChatbot/model/MockCallContainerModel.swift

@@ -0,0 +1,43 @@
+import SwiftUI
+import PipecatClientIOS
+
+class MockCallContainerModel: CallContainerModel {
+    
+    override init() {
+        super.init()
+        let liveMessageFromSystem = LiveMessage(
+            content: "System message",
+            type: .system,
+            updatedAt: Date()
+        )
+        let liveMessageFromUser = LiveMessage(
+            content: "Message from User",
+            type: .user,
+            updatedAt: Date()
+        )
+        let liveMessageFromBot = LiveMessage(
+            content: "Message from bot",
+            type: .bot,
+            updatedAt: Date()
+        )
+        self.messages = [ liveMessageFromSystem, liveMessageFromUser, liveMessageFromBot ]
+    }
+
+    override func connect(backendURL: String) {
+        print("connect")
+    }
+    
+    override func disconnect() {
+        print("disconnect")
+    }
+    
+    override func showError(message: String) {
+        self.toastMessage = message
+        self.showToast = true
+        // Hide the toast after 5 seconds
+        DispatchQueue.main.asyncAfter(deadline: .now() + 5) {
+            self.showToast = false
+            self.toastMessage = nil
+        }
+    }
+}

examples/p2p-webrtc/video-transform/client/ios/SimpleChatbot/types/LiveMessage.swift

@@ -0,0 +1,21 @@
+import Foundation
+
+enum MessageType {
+    case bot, user, system
+}
+
+class LiveMessage: ObservableObject, Identifiable, Equatable {
+    @Published var content: String
+    let type: MessageType
+    let updatedAt: Date
+    
+    init(content: String, type: MessageType, updatedAt: Date) {
+        self.content = content
+        self.type = type
+        self.updatedAt = updatedAt
+    }
+    
+    static func == (lhs: LiveMessage, rhs: LiveMessage) -> Bool {
+        lhs.updatedAt == rhs.updatedAt
+    }
+}

examples/p2p-webrtc/video-transform/client/ios/SimpleChatbot/views/MeetingView.swift

@@ -0,0 +1,81 @@
+import SwiftUI
+import PipecatClientIOSSmallWebrtc
+
+struct MeetingView: View {
+    
+    @State private var showingSettings = false
+    @EnvironmentObject private var model: CallContainerModel
+    
+    var body: some View {
+        VStack {
+            ZStack {
+                SmallWebRTCVideoViewSwiftUI(videoTrack: self.model.botCamId, videoScaleMode: .fill)
+                    .edgesIgnoringSafeArea(.all)
+                
+                VStack {
+                    ChatView()
+                        .frame(maxHeight: .infinity)
+                    
+                    HStack {
+                        MicrophoneView(audioLevel: 0, isMuted: !self.model.isMicEnabled)
+                            .frame(width: 100, height: 100)
+                            .onTapGesture {
+                                self.model.toggleMicInput()
+                            }
+                        CameraButtonView(trackId: self.model.localCamId, isMuted: !self.model.isCamEnabled)
+                            .frame(width: 120, height: 120)
+                            .onTapGesture {
+                                self.model.toggleCamInput()
+                            }
+                    }
+                    .padding()
+                }
+            }
+            Button(action: {
+                self.showingSettings = true
+            }) {
+                HStack {
+                    Image(systemName: "gearshape")
+                        .resizable()
+                        .frame(width: 24, height: 24)
+                    Text("Settings")
+                }
+                .frame(maxWidth: .infinity)
+                .padding()
+                .sheet(isPresented: $showingSettings) {
+                    SettingsView(showingSettings: $showingSettings).environmentObject(self.model)
+                }
+            }
+            .foregroundColor(.black)
+            .background(Color.white)
+            .border(Color.buttonsBorder, width: 1)
+            .cornerRadius(12)
+            .padding([.horizontal])
+            
+            Button(action: {
+                self.model.disconnect()
+            }) {
+                HStack {
+                    Image(systemName: "rectangle.portrait.and.arrow.right")
+                        .resizable()
+                        .frame(width: 24, height: 24)
+                    Text("End")
+                }
+                .frame(maxWidth: .infinity)
+                .padding()
+            }
+            .foregroundColor(.white)
+            .background(Color.black)
+            .cornerRadius(12)
+            .padding([.bottom, .horizontal])
+        }
+        .background(Color.backgroundApp)
+        .toast(message: model.toastMessage, isShowing: model.showToast)
+    }
+}
+
+#Preview {
+    let mockModel = MockCallContainerModel()
+    let result = MeetingView().environmentObject(mockModel as CallContainerModel)
+    return result
+}

examples/p2p-webrtc/video-transform/client/ios/SimpleChatbot/views/PreJoinView.swift

@@ -0,0 +1,44 @@
+import SwiftUI
+
+struct PreJoinView: View {
+
+    @State var backendURL: String
+
+    @EnvironmentObject private var model: CallContainerModel
+
+    init() {
+        let currentSettings = SettingsManager.getSettings()
+        self.backendURL = currentSettings.backendURL
+    }
+
+    var body: some View {
+        VStack(spacing: 20) {
+            Image("pipecat")
+                .resizable()
+                .frame(width: 80, height: 80)
+            Text("Pipecat Client iOS.")
+                .font(.headline)
+            TextField("Server URL", text: $backendURL)
+                .textFieldStyle(RoundedBorderTextFieldStyle())
+                .frame(maxWidth: .infinity)
+                .padding([.bottom, .horizontal])
+            Button("Connect") {
+                Task {
+                    await self.model.connect(backendURL: self.backendURL)
+                }
+            }
+            .padding()
+            .background(Color.black)
+            .foregroundColor(.white)
+            .cornerRadius(8)
+        }
+        .padding()
+        .frame(maxHeight: .infinity)
+        .background(Color.backgroundApp)
+        .toast(message: model.toastMessage, isShowing: model.showToast)
+    }
+}
+
+#Preview {
+    PreJoinView().environmentObject(MockCallContainerModel() as CallContainerModel)
+}

examples/p2p-webrtc/video-transform/client/ios/SimpleChatbot/views/components/CameraButtonView.swift

@@ -0,0 +1,42 @@
+import SwiftUI
+import PipecatClientIOS
+import PipecatClientIOSSmallWebrtc
+
+struct CameraButtonView: View {
+    var trackId: MediaTrackId?
+    var isMuted: Bool
+
+    var body: some View {
+        GeometryReader { geometry in
+            let width = geometry.size.width
+            let circleSize = width * 0.9
+            let innerCircleSize = width * 0.82
+
+            ZStack {
+                Circle()
+                    .stroke(Color.gray, lineWidth: 1)
+                    .frame(width: circleSize)
+                
+                if (!isMuted){
+                    SmallWebRTCVideoViewSwiftUI(videoTrack: trackId, videoScaleMode: .fill)
+                        .aspectRatio(1, contentMode: .fit)
+                        .clipShape(Circle())
+                } else {
+                    Circle()
+                        .fill(Color.disabledVision)
+                        .frame(width: innerCircleSize)
+                    Image("vision")
+                        .resizable()
+                        .scaledToFit()
+                        .frame(width: width * 0.3)
+                        .foregroundColor(.green)
+                }
+            }
+            .frame(maxWidth: .infinity, maxHeight: .infinity) // Ensures the ZStack is centered
+        }
+    }
+}
+
+#Preview {
+    CameraButtonView(trackId: nil, isMuted: true)
+}

examples/p2p-webrtc/video-transform/client/ios/SimpleChatbot/views/components/ChatView.swift

@@ -0,0 +1,96 @@
+import SwiftUI
+
+struct ChatView: View {
+    @EnvironmentObject private var model: CallContainerModel
+    @State private var timer = Timer.publish(every: 0.5, on: .main, in: .common).autoconnect()
+    
+    var body: some View {
+        VStack {
+            ScrollViewReader { scrollViewProxy in
+                ScrollView {
+                    VStack(spacing: 10) {
+                        ForEach(self.model.messages) { message in
+                            MessageView(message: message)
+                            .frame(maxWidth: .infinity, alignment: messageAlignment(for: message.type))
+                            .padding(.horizontal)
+                            .id(message.id)
+                        }
+                    }
+                    .onChange(of: self.model.messages) { _, _ in
+                        scrollToLastMessage(scrollViewProxy)
+                    }
+                }
+                .onReceive(timer) { _ in
+                    scrollToLastMessage(scrollViewProxy)
+                }
+                .onAppear {
+                    scrollToLastMessage(scrollViewProxy)
+                }
+            }
+        }
+        .edgesIgnoringSafeArea(.bottom)
+    }
+    
+    private func messageAlignment(for type: MessageType) -> Alignment {
+        switch type {
+        case .bot: return .leading
+        case .user: return .trailing
+        case .system: return .center
+        }
+    }
+    
+    private func scrollToLastMessage(_ scrollViewProxy: ScrollViewProxy) {
+        if let lastMessageId = self.model.messages.last?.id {
+            withAnimation {
+                scrollViewProxy.scrollTo(lastMessageId, anchor: .bottom)
+            }
+        }
+    }
+}
+
+struct MessageView: View {
+    @ObservedObject var message: LiveMessage
+    
+    var body: some View {
+        HStack {
+            if message.type == .bot {
+                Image(systemName: "gearshape")
+                    .resizable()
+                    .frame(width: 24, height: 24)
+            }
+            
+            Text(message.content)
+                .padding(message.type == .system ? 5 : 10)
+                .foregroundColor(.white)
+                .background(messageBackgroundColor(for: message.type))
+                .cornerRadius(15)
+                .overlay(
+                    RoundedRectangle(cornerRadius: 15)
+                        .stroke(Color.gray.opacity(0.5), lineWidth: 1)
+                )
+        }
+        .padding(messagePadding(for: message.type))
+    }
+    
+    private func messageBackgroundColor(for type: MessageType) -> Color {
+        switch type {
+        case .bot: return .black
+        case .user: return .gray
+        case .system: return .blue.opacity(0.6)
+        }
+    }
+    
+    private func messagePadding(for type: MessageType) -> EdgeInsets {
+        switch type {
+        case .bot: return EdgeInsets(top: 0, leading: 0, bottom: 0, trailing: 40)
+        case .user: return EdgeInsets(top: 0, leading: 40, bottom: 0, trailing: 0)
+        case .system: return EdgeInsets(top: 0, leading: 0, bottom: 0, trailing: 0)
+        }
+    }
+}
+
+#Preview {
+    let mockModel = MockCallContainerModel()
+    let result = ChatView().environmentObject(mockModel as CallContainerModel)
+    return result
+}

examples/p2p-webrtc/video-transform/client/ios/SimpleChatbot/views/components/MicrophoneView.swift

@@ -0,0 +1,44 @@
+import SwiftUI
+
+struct MicrophoneView: View {
+    var audioLevel: Float // Current audio level
+    var isMuted: Bool // Muted state
+
+    var body: some View {
+        GeometryReader { geometry in
+            let width = geometry.size.width
+            let circleSize = width * 0.9
+            let innerCircleSize = width * 0.82
+            let audioCircleSize = CGFloat(audioLevel) * (width * 0.95)
+
+            ZStack {
+                Circle()
+                    .stroke(Color.gray, lineWidth: 1)
+                    .frame(width: circleSize)
+
+                Circle()
+                    .fill(isMuted ? Color.disabledMic : Color.backgroundCircle)
+                    .frame(width: innerCircleSize)
+
+                if !isMuted {
+                    Circle()
+                        .fill(Color.micVolume)
+                        .opacity(0.5)
+                        .frame(width: audioCircleSize)
+                        .animation(.easeInOut(duration: 0.2), value: audioLevel)
+                }
+
+                Image(systemName: isMuted ? "mic.slash.fill" : "mic.fill")
+                    .resizable()
+                    .scaledToFit()
+                    .frame(width: width * 0.2)
+                    .foregroundColor(.white)
+            }
+            .frame(maxWidth: .infinity, maxHeight: .infinity) // Ensures the ZStack is centered
+        }
+    }
+}
+
+#Preview {
+    MicrophoneView(audioLevel: 1, isMuted: false)
+}

examples/p2p-webrtc/video-transform/client/ios/SimpleChatbot/views/components/ToastModifier.swift

@@ -0,0 +1,31 @@
+import SwiftUI
+
+struct ToastModifier: ViewModifier {
+    var message: String?
+    var isShowing: Bool
+    
+    func body(content: Content) -> some View {
+        ZStack {
+            content
+            if isShowing, let message = message {
+                VStack {
+                    Text(message)
+                        .padding()
+                        .background(Color.black.opacity(0.7))
+                        .foregroundColor(.white)
+                        .cornerRadius(8)
+                        .transition(.slide)
+                        .padding(.top, 50)
+                    Spacer()
+                }
+                .animation(.easeInOut(duration: 0.5), value: isShowing)
+            }
+        }
+    }
+}
+
+extension View {
+    func toast(message: String?, isShowing: Bool) -> some View {
+        self.modifier(ToastModifier(message: message, isShowing: isShowing))
+    }
+}

examples/p2p-webrtc/video-transform/client/ios/SimpleChatbot/views/extensions/CustomColors.swift

@@ -0,0 +1,26 @@
+import SwiftUI
+
+public extension Color {
+    
+    static let backgroundCircle = Color(hex: "#374151")
+    static let backgroundCircleNotConnected = Color(hex: "#D1D5DB")
+    static let backgroundApp = Color(hex: "#F9FAFB")
+    static let buttonsBorder = Color(hex: "#E5E7EB")
+    static let micVolume = Color(hex: "#86EFAC")
+    static let disabledMic = Color(hex: "#ee6b6e")
+    static let disabledVision = Color(hex: "#BBF7D0")
+        
+    init(hex: String) {
+        let scanner = Scanner(string: hex)
+        _ = scanner.scanString("#")
+        
+        var rgb: UInt64 = 0
+        scanner.scanHexInt64(&rgb)
+        
+        let red = Double((rgb >> 16) & 0xFF) / 255.0
+        let green = Double((rgb >> 8) & 0xFF) / 255.0
+        let blue = Double(rgb & 0xFF) / 255.0
+        
+        self.init(red: red, green: green, blue: blue)
+    }
+}

examples/p2p-webrtc/video-transform/client/ios/SimpleChatbot/views/settings/SettingsManager.swift

@@ -0,0 +1,21 @@
+import Foundation
+
+class SettingsManager {
+    private static let preferencesKey = "settingsPreference"
+
+    static func getSettings() -> SettingsPreference {
+        if let data = UserDefaults.standard.data(forKey: preferencesKey),
+           let settings = try? JSONDecoder().decode(SettingsPreference.self, from: data) {
+            return settings
+        } else {
+            // default values in case we don't have any settings
+            return SettingsPreference(enableMic: true, enableCam: true, backendURL: "http://YOUR_IP:7860")
+        }
+    }
+    
+    static func updateSettings(settings: SettingsPreference) {
+        if let data = try? JSONEncoder().encode(settings) {
+            UserDefaults.standard.set(data, forKey: preferencesKey)
+        }
+    }
+}

examples/p2p-webrtc/video-transform/client/ios/SimpleChatbot/views/settings/SettingsPreference.swift

@@ -0,0 +1,9 @@
+import Foundation
+
+struct SettingsPreference: Codable {
+    var selectedMic: String?
+    var enableMic: Bool
+    var enableCam: Bool
+    var backendURL: String
+}
+

examples/p2p-webrtc/video-transform/client/ios/SimpleChatbot/views/settings/SettingsView.swift

@@ -0,0 +1,82 @@
+import SwiftUI
+
+struct SettingsView: View {
+    
+    @EnvironmentObject private var model: CallContainerModel
+    
+    @Binding var showingSettings: Bool
+    
+    @State private var isMicEnabled: Bool = true
+    @State private var isCamEnabled: Bool = true
+    @State private var backendURL: String = ""
+    
+    var body: some View {
+        NavigationView {
+            Form {
+                Section {
+                    List(model.availableMics, id: \.self.id.id) { mic in
+                        Button(action: {
+                            model.selectMic(mic.id)
+                        }) {
+                            HStack {
+                                Text(mic.name)
+                                Spacer()
+                                if mic.id == model.selectedMic {
+                                    Image(systemName: "checkmark")
+                                }
+                            }
+                        }
+                    }
+                } header: {
+                    VStack(alignment: .leading) {
+                        Text("Audio Settings")
+                        Text("(No selection = system default)")
+                    }
+                }
+                Section(header: Text("Start options")) {
+                    Toggle("Enable Microphone", isOn: $isMicEnabled)
+                    Toggle("Enable Cam", isOn: $isCamEnabled)
+                }
+                Section(header: Text("Server")) {
+                    TextField("Backend URL", text: $backendURL)
+                        .keyboardType(.URL)
+                }
+            }
+            .navigationTitle("Settings")
+            .toolbar {
+                ToolbarItem(placement: .cancellationAction) {
+                    Button("Close") {
+                        self.saveSettings()
+                        self.showingSettings = false
+                    }
+                }
+            }
+            .onAppear {
+                self.loadSettings()
+            }
+        }
+    }
+    
+    private func saveSettings() {
+        let newSettings = SettingsPreference(
+            selectedMic: model.selectedMic?.id,
+            enableMic: isMicEnabled,
+            enableCam: isCamEnabled,
+            backendURL: backendURL
+        )
+        SettingsManager.updateSettings(settings: newSettings)
+    }
+    
+    private func loadSettings() {
+        let savedSettings = SettingsManager.getSettings()
+        self.isMicEnabled = savedSettings.enableMic
+        self.isCamEnabled = savedSettings.enableCam
+        self.backendURL = savedSettings.backendURL
+    }
+}
+
+#Preview {
+    let mockModel = MockCallContainerModel()
+    let result = SettingsView(showingSettings: .constant(true)).environmentObject(mockModel as CallContainerModel)
+    return result
+}

examples/p2p-webrtc/video-transform/client/ios/SimpleChatbotTests/SimpleChatbotTests.swift

@@ -0,0 +1,29 @@
+import XCTest
+@testable import SimpleChatbot
+
+final class SimpleChatbotTests: XCTestCase {
+
+    override func setUpWithError() throws {
+        // Put setup code here. This method is called before the invocation of each test method in the class.
+    }
+
+    override func tearDownWithError() throws {
+        // Put teardown code here. This method is called after the invocation of each test method in the class.
+    }
+
+    func testExample() throws {
+        // This is an example of a functional test case.
+        // Use XCTAssert and related functions to verify your tests produce the correct results.
+        // Any test you write for XCTest can be annotated as throws and async.
+        // Mark your test throws to produce an unexpected failure when your test encounters an uncaught error.
+        // Mark your test async to allow awaiting for asynchronous code to complete. Check the results with assertions afterwards.
+    }
+
+    func testPerformanceExample() throws {
+        // This is an example of a performance test case.
+        self.measure {
+            // Put the code you want to measure the time of here.
+        }
+    }
+
+}

examples/p2p-webrtc/video-transform/client/ios/SimpleChatbotUITests/SimpleChatbotUITests.swift

@@ -0,0 +1,34 @@
+import XCTest
+
+final class SimpleChatbotUITests: XCTestCase {
+
+    override func setUpWithError() throws {
+        // Put setup code here. This method is called before the invocation of each test method in the class.
+
+        // In UI tests it is usually best to stop immediately when a failure occurs.
+        continueAfterFailure = false
+
+        // In UI tests it’s important to set the initial state - such as interface orientation - required for your tests before they run. The setUp method is a good place to do this.
+    }
+
+    override func tearDownWithError() throws {
+        // Put teardown code here. This method is called after the invocation of each test method in the class.
+    }
+
+    func testExample() throws {
+        // UI tests must launch the application that they test.
+        let app = XCUIApplication()
+        app.launch()
+
+        // Use XCTAssert and related functions to verify your tests produce the correct results.
+    }
+
+    func testLaunchPerformance() throws {
+        if #available(macOS 10.15, iOS 13.0, tvOS 13.0, watchOS 7.0, *) {
+            // This measures how long it takes to launch your application.
+            measure(metrics: [XCTApplicationLaunchMetric()]) {
+                XCUIApplication().launch()
+            }
+        }
+    }
+}

examples/p2p-webrtc/video-transform/client/ios/SimpleChatbotUITests/SimpleChatbotUITestsLaunchTests.swift

@@ -0,0 +1,25 @@
+import XCTest
+
+final class SimpleChatbotUITestsLaunchTests: XCTestCase {
+
+    override class var runsForEachTargetApplicationUIConfiguration: Bool {
+        true
+    }
+
+    override func setUpWithError() throws {
+        continueAfterFailure = false
+    }
+
+    func testLaunch() throws {
+        let app = XCUIApplication()
+        app.launch()
+
+        // Insert steps here to perform after app launch but before taking a screenshot,
+        // such as logging into a test account or navigating somewhere in the app
+
+        let attachment = XCTAttachment(screenshot: app.screenshot())
+        attachment.name = "Launch Screen"
+        attachment.lifetime = .keepAlways
+        add(attachment)
+    }
+}

examples/p2p-webrtc/video-transform/client/typescript/vite.config.js

@@ -4,6 +4,7 @@ import react from '@vitejs/plugin-react-swc';
 export default defineConfig({
     plugins: [react()],
     server: {
+        allowedHosts: true, // Allows external connections like ngrok
         proxy: {
             // Proxy /api requests to the backend server
             '/api': {

examples/phone-chatbot/.dockerignore

@@ -1,3 +0,0 @@
-**/.DS_Store
-.env
-.env.*

examples/phone-chatbot/Dockerfile

@@ -1,40 +0,0 @@
-FROM python:3.11-bullseye
-
-ARG DEBIAN_FRONTEND=noninteractive
-ARG USE_PERSISTENT_DATA
-ENV PYTHONUNBUFFERED=1
-# Expose FastAPI port
-ENV FAST_API_PORT=7860
-EXPOSE 7860
-
-# Install system dependencies
-RUN apt-get update && apt-get install --no-install-recommends -y \
-    build-essential \
-    git \
-    ffmpeg \
-    google-perftools \
-    ca-certificates curl gnupg \
-    && apt-get clean && rm -rf /var/lib/apt/lists/*
-
-# Set up a new user named "user" with user ID 1000
-RUN useradd -m -u 1000 user
-
-# Set home to the user's home directory
-ENV HOME=/home/user \
-    PATH=/home/user/.local/bin:$PATH \
-    PYTHONPATH=$HOME/app \
-    PYTHONUNBUFFERED=1
-
-# Switch to the "user" user
-USER user
-
-# Set the working directory to the user's home directory
-WORKDIR $HOME/app
-
-# Install Python dependencies
-COPY *.py .
-COPY ./requirements.txt requirements.txt
-RUN pip3 install --no-cache-dir --upgrade -r requirements.txt
-
-# Start the FastAPI server
-CMD python3 bot_runner.py --host "0.0.0.0" --port ${FAST_API_PORT}

examples/phone-chatbot/README.md

@@ -1,209 +1,602 @@
 <!-- @format -->
 
 <div align="center">
- <img alt="pipecat" width="300px" height="auto" src="image.png">
+ <img alt="pipecat" width="300px" height="auto" src="image.png">
 </div>
 
-# Phone Chatbot
+# Pipecat Phone Chatbot
 
-Example project that demonstrates how to add phone funtionality to your Pipecat bots. We include examples for Daily (`bot_daily.py`) dial-in and dial-out, and Twilio (`bot_twilio.py`) dial-in, depending on who you want to use as a phone vendor.
+This repository contains examples for building intelligent phone chatbots using AI for various use cases including:
 
-- 🔁 Transport: Daily WebRTC
-- 💬 Speech-to-Text: Deepgram via Daily transport
-- 🤖 LLM: GPT4-o / OpenAI
-- 🔉 Text-to-Speech: ElevenLabs
+- **Simple dial-in**: Basic incoming call handling
+- **Simple dial-out**: Basic outgoing call handling
+- **Voicemail detection**: Bot calls a number, detects if it reaches voicemail or a human, and responds appropriately
+- **Call transfer**: Bot handles initial customer interaction and transfers to a human operator when needed
 
-#### Should I use Daily or Twilio as a vendor?
+## Architecture Overview
 
-If you're starting from scratch, using Daily to provision phone numbers alongside Daily as a transport offers some convenience (such as automatic call forwarding.)
+These examples use the following components:
 
-If you already have Twilio numbers and workflows that you want to connect to your Pipecat bots, there is some additional configuration required (you'll need to create a `on_dialin_ready` and use the Twilio client to trigger the forward.)
+- 🔁 **Transport**: Daily WebRTC
+- 💬 **Speech-to-Text**: Deepgram via Daily transport
+- 🤖 **LLMs**: Each example uses a specific LLM (OpenAI GPT-4o or Google Gemini)
+- 🔉 **Text-to-Speech**: Cartesia
 
-You can read more about this, as well as see respective walkthroughs in our docs.
+## Getting Started
 
-## Setup
+### Prerequisites
 
 1. Create and activate a virtual environment:
+
    ```shell
    python3 -m venv venv
    source venv/bin/activate  # On Windows: venv\Scripts\activate
    ```
+
 2. Install requirements:
+
    ```shell
    pip install -r requirements.txt
    ```
-3. Copy env.example to .env and configure:
+
+3. Set up your environment variables:
+
    ```shell
    cp env.example .env
    ```
-4. Install [ngrok](https://ngrok.com/) so your local server can receive requests from Daily's servers.
 
-## Using Daily numbers
+   Edit the `.env` file to include your API keys.
 
-### Running the example
+4. Install [ngrok](https://ngrok.com/) to make your local server accessible to external services.
 
-To run either the dial-in or dial-out example, follow these steps to get started:
+### Phone Number Provider: Daily vs Twilio
 
-1. Run `bot_runner.py` to handle incoming HTTP requests:
+If you're starting from scratch, we recommend using Daily to provision phone numbers alongside Daily as a transport for simplicity (this provides automatic call forwarding).
+
+If you already have Twilio numbers and workflows, you can connect them to your Pipecat bots with some additional configuration (`on_dialin_ready` and using the Twilio client to trigger forwarding).
+
+Most examples in this repository show how to use Daily for dial-in/dial-out operations.
+
+## Running the Examples
+
+### 1. Start the Bot Runner Service
+
+The bot runner handles incoming requests and manages bot processes:
+
+```shell
+python bot_runner.py --host localhost
+```
+
+### 2. Create a Public Endpoint with ngrok
+
+Start ngrok to create a public URL for your local server:
+
+```shell
+ngrok http --domain yourdomain.ngrok.app 7860
+```
+
+## Example 1: Simple Dial-in
+
+This example demonstrates basic handling of incoming calls without additional features like call transfer.
+
+### Testing in Daily Prebuilt (No Actual Phone Calls)
+
+```shell
+curl -X POST "http://localhost:7860/start" \
+	 -H "Content-Type: application/json" \
+	 -d '{
+		 "config": {
+			"simple_dialin": {
+			   "testInPrebuilt": true
+			}
+		 }
+	  }'
+```
+
+This returns a Daily room URL where you can test the bot's basic conversation capabilities.
+
+## Example 2: Simple Dial-out
+
+This example demonstrates basic handling of outgoing calls without additional features like voicemail detection.
+
+### Testing in Daily Prebuilt (No Actual Phone Calls)
+
+```shell
+curl -X POST "http://localhost:7860/start" \
+	 -H "Content-Type: application/json" \
+	 -d '{
+		 "config": {
+			"simple_dialout": {
+			   "testInPrebuilt": true
+			}
+		 }
+	  }'
+```
+
+This returns a Daily room URL where you can test the bot's basic conversation capabilities.
+
+### Making Actual Phone Calls
+
+```shell
+curl -X POST "http://localhost:7860/start" \
+	 -H "Content-Type: application/json" \
+	 -d '{
+		 "config": {
+			"dialout_settings": [{
+			   "phoneNumber": "+12345678910"
+			}],
+			"simple_dialout": {
+			   "testInPrebuilt": false
+			}
+		 }
+	  }'
+```
+
+## Example 3: Voicemail Detection
+
+This example demonstrates a bot that can dial out to a phone number, detect whether it reached a human or voicemail system, and respond appropriately.
+
+### How It Works
+
+1. Bot dials a phone number
+2. Bot listens to determine if it's connected to a person or voicemail
+3. If it detects voicemail, it leaves a predefined message and hangs up
+4. If it detects a human, it engages in conversation
+
+### Testing in Daily Prebuilt (No Actual Phone Calls)
+
+To test without making actual phone calls:
+
+```shell
+curl -X POST "http://localhost:7860/start" \
+	 -H "Content-Type: application/json" \
+	 -d '{
+		 "config": {
+			"voicemail_detection": {
+			   "testInPrebuilt": true
+			}
+		 }
+	  }'
+```
+
+This will return a Daily room URL you can use to test the bot in the browser.
+
+### Making Actual Phone Calls
+
+To have the bot dial out to a real phone number:
+
+```shell
+curl -X POST "http://localhost:7860/start" \
+	 -H "Content-Type: application/json" \
+	 -d '{
+		 "config": {
+			"dialout_settings": [{
+			   "phoneNumber": "+12345678910"
+			}],
+			"voicemail_detection": {
+			   "testInPrebuilt": false
+			}
+		 }
+	  }'
+```
+
+> **Note:** To enable dial-out capabilities, you must first:
+>
+> 1. Contact [help@daily.co](mailto:help@daily.co) to enable dial-out for your domain
+> 2. Purchase a phone number to dial out from
+> 3. Ensure rooms have dial-out enabled (the bot runner handles this)
+> 4. Use an owner token for the bot (also handled by the bot runner)
+
+## Example 4: Call Transfer
+
+This example demonstrates a bot that handles initial customer interaction and can transfer the call to a human operator when requested.
+
+### How It Works
+
+1. Customer calls in and speaks with the bot
+2. When the customer asks for a supervisor/manager, the bot initiates a transfer
+3. The bot dials out to an appropriate operator
+4. When the operator joins, the bot summarizes the conversation
+5. The bot remains silent while operator and customer talk
+6. When the operator leaves, the bot resumes handling the call
+
+### Testing in Daily Prebuilt (No Actual Phone Calls)
+
+```shell
+curl -X POST "http://localhost:7860/start" \
+	 -H "Content-Type: application/json" \
+	 -d '{
+		 "config": {
+			"call_transfer": {
+			   "mode": "dialout",
+			   "speakSummary": true,
+			   "storeSummary": false,
+			   "operatorNumber": "+12345678910",
+			   "testInPrebuilt": true
+			}
+		 }
+	  }'
+```
+
+This returns a Daily room URL. In the room, the expected flow is:
+
+1. Join the room and speak with the bot
+2. Ask to speak with a manager/supervisor
+3. The bot will add the "operator" to the call
+4. The bot will summarize the conversation and then go silent
+5. To simulate the operator, you can mute yourself in Daily Prebuilt and speak as if you're the operator
+6. When finished, have the "operator" leave the call
+7. The bot will resume speaking and can recall details from the conversation
+8. End the call by closing Daily Prebuilt or telling the bot you're done
+
+### Using with Real Phone Calls
+
+For incoming calls from customers, Daily will send a webhook to your `/start` endpoint. This webhook contains:
+
+```json
+{
+	"From": "+CALLERS_PHONE",
+	"To": "$PURCHASED_PHONE",
+	"callId": "callid-read-only-string",
+	"callDomain": "callDomain-read-only-string"
+}
+```
+
+The system will:
+
+1. Identify the customer based on their phone number
+2. Determine the appropriate operator to contact
+3. Customize the bot's behavior based on transfer settings
+
+#### Operator Assignment
+
+The `call_connection_manager.py` file contains mappings for:
+
+1. `CUSTOMER_MAP`: Links phone numbers to customer names
+2. `OPERATOR_CONTACT_MAP`: Contains operator contact information
+3. `CUSTOMER_TO_OPERATOR_MAP`: Defines which operators should handle which customers
+
+You can customize these mappings or integrate with your existing customer database.
+
+## Configuration Options
+
+### Request Body Structure
+
+When making requests to the `/start` endpoint, the config object can include:
+
+```json
+{
+	"config": {
+		"prompts": [
+			{
+				"name": "call_transfer_initial_prompt",
+				"text": "Your custom prompt here"
+			},
+			{
+				"name": "call_transfer_prompt",
+				"text": "Your custom prompt here"
+			},
+			{
+				"name": "call_transfer_finished_prompt",
+				"text": "Your custom prompt here"
+			},
+			{
+				"name": "voicemail_detection_prompt",
+				"text": "Your custom prompt here"
+			},
+			{
+				"name": "voicemail_prompt",
+				"text": "Your custom prompt here"
+			},
+			{
+				"name": "human_conversation_prompt",
+				"text": "Your custom prompt here"
+			}
+		],
+		"dialin_settings": {
+			"From": "+CALLERS_PHONE",
+			"To": "$PURCHASED_PHONE",
+			"callId": "callid-read-only-string",
+			"callDomain": "callDomain-read-only-string"
+		},
+		"dialout_settings": [
+			{
+				"phoneNumber": "+12345678910",
+				"callerId": "caller-id-uuid",
+				"sipUri": "sip:maria@example.com"
+			}
+		],
+		"call_transfer": {
+			"mode": "dialout",
+			"speakSummary": true,
+			"storeSummary": false,
+			"operatorNumber": "+12345678910",
+			"testInPrebuilt": false
+		},
+		"voicemail_detection": {
+			"testInPrebuilt": true
+		},
+		"simple_dialin": {
+			"testInPrebuilt": true
+		},
+		"simple_dialout": {
+			"testInPrebuilt": true
+		}
+	}
+}
+```
+
+### Configuration Parameters
+
+- `prompts`: An array of objects containing prompts that you want the examples to use.
+- `dialin_settings`: Information about incoming calls (typically from webhook)
+- `dialout_settings`: For outbound calls:
+  - `phoneNumber`: Number to dial
+  - `callerId`: UUID of the number to display (optional)
+  - `sipUri`: SIP URI to connect to (alternative to phoneNumber)
+- `call_transfer`: For call transfer example:
+  - `mode`: Currently only `"dialout"` is supported
+  - `speakSummary`: Whether the bot should summarize the conversation for the operator
+  - `storeSummary`: For future implementation
+  - `operatorNumber`: Operator phone number
+  - `testInPrebuilt`: Test without actual phone calls
+- `voicemail_detection`: For voicemail detection example:
+  - `testInPrebuilt`: Test without actual phone calls
+- `simple_dialin`: For simple dialin example:
+  - `testInPrebuilt`: Test without actual phone calls
+- `simple_dialout`: For simple dialout example:
+  - `testInPrebuilt`: Test without actual phone calls
+
+## Feature Compatibility
+
+The following table shows which feature combinations are supported when making requests to the `/start` endpoint. The table is organized by use case to help you create the correct configuration.
+
+| Use Case                                                        | `call_transfer` | `voicemail_detection` | `simple_dialin` | `simple_dialout` | `dialin_settings` | `dialout_settings` | `operatorNumber` | `testInPrebuilt` | Status           |
+| --------------------------------------------------------------- | --------------- | --------------------- | --------------- | ---------------- | ----------------- | ------------------ | ---------------- | ---------------- | ---------------- |
+| **Basic incoming call handling (simple_dialin)**                | ✗               | ✗                     | ✓               | ✗                | ✓                 | ✗                  | ✗                | ✗                | ✅ Supported     |
+| **Test mode: Simple dialin in Daily Prebuilt**                  | ✗               | ✗                     | ✓               | ✗                | ✗                 | ✗                  | ✗                | ✓                | ✅ Supported     |
+| **Basic outgoing call handling (simple_dialout)**               | ✗               | ✗                     | ✗               | ✓                | ✗                 | ✓                  | ✗                | ✗                | ✅ Supported     |
+| **Test mode: Simple dialout in Daily Prebuilt**                 | ✗               | ✗                     | ✗               | ✓                | ✗                 | ✗                  | ✗                | ✓                | ✅ Supported     |
+| **Standard call transfer (incoming call)**                      | ✓               | ✗                     | ✗               | ✗                | ✓                 | ✗                  | ✓/✗              | ✗                | ✅ Supported     |
+| **Standard voicemail detection (outgoing call)**                | ✗               | ✓                     | ✗               | ✗                | ✗                 | ✓                  | ✗                | ✗                | ✅ Supported     |
+| **Test mode: Call transfer in Daily Prebuilt**                  | ✓               | ✗                     | ✗               | ✗                | ✗                 | ✗                  | ✓                | ✓                | ✅ Supported     |
+| **Test mode: Voicemail detection in Daily Prebuilt**            | ✗               | ✓                     | ✗               | ✗                | ✗                 | ✗                  | ✗                | ✓                | ✅ Supported     |
+| Call transfer requires operatorNumber                           | ✓               | ✗                     | ✗               | ✗                | ✓                 | ✗                  | ✗                | ✓/✗              | ❌ Not Supported |
+| Voicemail detection requires dialout_settings or testInPrebuilt | ✗               | ✓                     | ✗               | ✗                | ✓                 | ✗                  | ✗                | ✓/✗              | ❌ Not Supported |
+| Cannot combine different bot types                              | ✓               | ✓                     | ✗               | ✗                | ✓                 | ✓                  | ✓                | ✓/✗              | ❌ Not Supported |
+| Call_transfer needs dialin_settings in non-test mode            | ✓               | ✗                     | ✗               | ✗                | ✗                 | ✗                  | ✓                | ✗                | ❌ Not Supported |
+| Voicemail_detection needs dialout_settings in non-test mode     | ✗               | ✓                     | ✗               | ✗                | ✗                 | ✗                  | ✗                | ✗                | ❌ Not Supported |
+| Insufficient configuration                                      | ✗               | ✗                     | ✗               | ✗                | ✗                 | ✗                  | ✗                | ✓/✗              | ❌ Not Supported |
+
+### Legend:
+
+- ✓: Required
+- ✗: Not allowed
+- ✓/✗: Optional
+- ✅: Supported
+- ❌: Not Supported
+
+### Notes:
+
+- `dialin_settings` is typically populated automatically from webhook data for incoming calls
+- `dialout_settings` must be specified manually for outgoing calls
+- `operatorNumber` is specified within the `call_transfer` object (`"call_transfer": {"operatorNumber": "+1234567890", ...}`)
+- `testInPrebuilt` is specified within the bot type object (e.g., `"call_transfer": {"testInPrebuilt": true, ...}`)
+- For call transfers, `operatorNumber` must be provided to specify which operator to dial. If it is not provided, we will base it off of the operator map in call_connection_manager.py
+- In test mode (`testInPrebuilt: true`), some requirements are relaxed to allow testing in Daily Prebuilt
+- Multiple customers to dial out to can be specified by providing an array of objects in `dialout_settings`
+- Bot types are mutually exclusive - you cannot combine multiple bot types in a single configuration
+
+### Configuration Examples
+
+#### Standard call transfer (incoming call):
+
+```json
+{
+	"config": {
+		"dialin_settings": {
+			"from": "+12345678901",
+			"to": "+19876543210",
+			"call_id": "call-id-string",
+			"call_domain": "domain-string"
+		},
+		"call_transfer": {
+			"mode": "dialout",
+			"speakSummary": true,
+			"operatorNumber": "+12345678910"
+		}
+	}
+}
+```
+
+#### Test mode: Call transfer in Daily Prebuilt:
+
+```json
+{
+	"config": {
+		"call_transfer": {
+			"mode": "dialout",
+			"speakSummary": true,
+			"operatorNumber": "+12345678910",
+			"testInPrebuilt": true
+		}
+	}
+}
+```
+
+#### Test mode: Voicemail detection in Daily Prebuilt:
+
+```json
+{
+	"config": {
+		"voicemail_detection": {
+			"testInPrebuilt": true
+		}
+	}
+}
+```
+
+#### Standard voicemail detection:
+
+```json
+{
+	"config": {
+		"dialout_settings": [
+			{
+				"phoneNumber": "+12345678910"
+			}
+		],
+		"voicemail_detection": {
+			"testInPrebuilt": false
+		}
+	}
+}
+```
+
+#### Simple dialin (incoming call):
+
+```json
+{
+	"config": {
+		"dialin_settings": {
+			"from": "+12345678901",
+			"to": "+19876543210",
+			"call_id": "call-id-string",
+			"call_domain": "domain-string"
+		},
+		"simple_dialin": {}
+	}
+}
+```
+
+#### Test mode: Simple dialin in Daily Prebuilt:
+
+```json
+{
+	"config": {
+		"simple_dialin": {
+			"testInPrebuilt": true
+		}
+	}
+}
+```
+
+#### Simple dialout (outgoing call):
+
+```json
+{
+	"config": {
+		"dialout_settings": [
+			{
+				"phoneNumber": "+12345678910"
+			}
+		],
+		"simple_dialout": {}
+	}
+}
+```
+
+#### Test mode: Simple dialout in Daily Prebuilt:
+
+```json
+{
+	"config": {
+		"simple_dialout": {
+			"testInPrebuilt": true
+		}
+	}
+}
+```
+
+## Using Twilio (Alternative)
+
+To use Twilio for call handling:
+
+1. Start the bot runner:
 
    ```shell
    python bot_runner.py --host localhost
    ```
 
-2. Start ngrok running in a terminal window:
+2. Start ngrok:
 
    ```shell
-   ngrok http --domain yourdomain.ngrok.app 8000
+   ngrok http --domain yourdomain.ngrok.app 7860
    ```
 
-3. In a different terminal window, run the Daily bot file:
-   ```shell
-   python bot_daily.py
-   ```
-
-### Dial-in
-
-To dial-in to the bot, you will need to enable dial-in for your Daily domain. Follow [this guide](https://docs.daily.co/guides/products/dial-in-dial-out/dialin-pinless#provisioning-sip-interconnect-and-pinless-dialin-workflow) to set up your domain.
-
-Note: For the `room_creation_api` property, point at your ngrok hostname: `"room_creation_api": "https://yourdomain.ngrok.app/daily_start_bot"`.
-
-Once your domain is configured, receiving a phone call at a number associated with your Daily account will result in a POST to the `/daily_start_bot` endpoint, which will start a bot session.
-
-### Dial-out
-
-For the bot to dial out to a number, make a POST request to `/daily_start_bot` and include the dial-out phone number in the body of the request as `dialoutNumber`.
-
-For example:
-
-```shell
-curl -X "POST" "http://localhost:7860/daily_start_bot" \
-     -H 'Content-Type: application/json; charset=utf-8' \
-     -d $'{
-  "dialoutNumber": "+12125551234"
-}'
-```
-
-### Voicemail detection
-
-To start the bot and test voicemail detection, send a POST request to /daily_start_bot with "detectVoicemail": true in the request body.
-
-- If you only include `"detectVoicemail": true`, the bot will not dial out. Instead, you can test it in Daily Prebuilt by visiting the URL provided in the response.
-- If you include both `"detectVoicemail": true` and a phone number under `"dialoutNumber"`, the bot will dial out to that number.
-
-Example: Testing in Daily Prebuilt:
-
-```shell
-curl -X POST "http://localhost:7860/daily_start_bot" \                                                                                                        py pipecat
-     -H "Content-Type: application/json" \
-     -d '{"detectVoicemail": true}'
-```
-
-Example: Testing with Dial-Out:
-
-```shell
-curl -X POST "http://localhost:7860/daily_start_bot" \                                                                                                        py pipecat
-     -H "Content-Type: application/json" \
-     -d '{"dialoutNumber": "+18057145330", "detectVoicemail": true}'
-```
-
-### New! Using Gemini 2.0 Flash Lite with Daily
-
-We have introduced support for Google's Gemini 2.0 Flash Lite model in this example. This lightweight model offers faster response times and reduced costs while maintaining good conversational capabilities.
-
-**Quick Start**
-To use the Gemini-based bot instead of OpenAI:
-
-```shell
-curl -X POST "http://localhost:7860/daily_gemini_start_bot" \                                                                                                        py pipecat
-     -H "Content-Type: application/json" \
-     -d '{"detectVoicemail": true}'
-```
-
-All request body parameters supported by /daily_start_bot (such as detectVoicemail, dialoutNumber, etc.) are also compatible with /daily_gemini_start_bot.
-
-This example uses context switching to help steer the bot in the right direction. As Flash Lite is a smaller model, breaking the prompt down into smaller piece helps to improve the bot's accuracy.
-
-For example, instead of giving one large prompt like:
-
-```python
-system_instruction="""You are a chatbot that needs to detect if you're talking to a voicemail system or human, then either leave a message or have a conversation. If it's voicemail, say "Hello, this is a message..." and hang up. If it's a human, introduce yourself and be helpful until they say goodbye."""
-```
-
-We break it into stages:
-
-First prompt focuses only on detection: "Determine if this is voicemail or human"
-After detection, we switch to a new context: either "Leave this specific voicemail message" or "Have a conversation with the human".
-
-**Implementation Details**
-The implementation is available in bot_daily_gemini.py and features:
-
-- Staged prompting approach: Breaking down complex tasks into smaller, more focused prompts to improve the lightweight model's performance
-- Dynamic context switching: The bot can change its behavior in real-time based on what it detects (voicemail vs. human caller)
-- Function-based architecture: Uses function calling to trigger context switches and call termination
-
-### More information
-
-For more configuration options, please consult [Daily's API documentation](https://docs.daily.co).
-
-## Using Twilio numbers
-
-### Running the example
-
-Follow these steps to get started:
-
-1. Run `bot_runner.py` to handle incoming HTTP requests:
-
-   ```shell
-   python bot_runner.py --host localhost
-   ```
-
-2. Start ngrok running in a terminal window:
-
-   ```shell
-   ngrok http --domain yourdomain.ngrok.app 8000
-   ```
-
-3. In a different terminal window, run the Daily bot file:
+3. In another terminal, run the Twilio bot:
    ```shell
    python bot_twilio.py
    ```
 
-As above, but target the following URL:
+Make requests to `/start_twilio_bot` for Twilio-specific functionality.
 
-`POST /twilio_start_bot`
+## Deployment
 
-For more configuration options, please consult Twilio's API documentation.
+See Pipecat Cloud deployment docs for how to deploy this example: https://docs.pipecat.daily.co/agents/deploy
 
-## Deployment example
+We also have a great, easy to use quickstart guide here: https://docs.pipecat.daily.co/quickstart
 
-A Dockerfile is included in this demo for convenience. Here is an example of how to build and deploy your bot to [fly.io](https://fly.io).
+## Using Different LLM Providers
 
-_Please note: This demo spawns agents as subprocesses for convenience / demonstration purposes. You would likely not want to do this in production as it would limit concurrency to available system resources. For more information on how to deploy your bots using VMs, refer to the Pipecat documentation._
+Each example in this repository is implemented with a specific LLM provider:
 
-### Build the docker image
+- **Simple dial-in**: Uses OpenAI
+- **Simple dial-out**: Uses OpenAI
+- **Voicemail detection**: Uses Google Gemini
+- **Call transfer**: Uses OpenAI
 
-`docker build -t tag:project .`
+If you want to implement one of these examples with a different LLM provider than what's provided:
 
-### Launch the fly project
+- To implement **call_transfer** with **Gemini**, reference the `voicemail_detection.py` file for how to structure LLM context, function calling, and other Gemini-specific implementations.
+- To implement **voicemail_detection** with **OpenAI**, reference the `call_transfer.py` file for OpenAI-specific implementation details.
 
-`mv fly.example.toml fly.toml`
+The key differences between implementations involve how context is managed, function calling syntax, and message formatting. Looking at both implementations side-by-side provides a good template for adapting any example to your preferred LLM provider.
 
-`fly launch` (using the included fly.toml)
+## Customizing Bot Prompts
 
-### Setup your secrets on Fly
+All examples include default prompts that work well for standard use cases. However, you can customize how the bot behaves by providing your own prompts in the request body.
 
-Set the necessary secrets (found in `env.example`)
+### Available Prompt Types
 
-`fly secrets set DAILY_API_KEY=... OPENAI_API_KEY=... ELEVENLABS_API_KEY=... ELEVENLABS_VOICE_ID=...`
+- `call_transfer_initial_prompt`: The initial prompt the bot uses when greeting a customer
+- `call_transfer_prompt`: Instructions for the bot when summarizing the conversation for an operator
+- `call_transfer_finished_prompt`: Instructions for when the operator leaves the call
+- `voicemail_detection_prompt`: Instructions for detecting whether a call connected to voicemail
+- `voicemail_prompt`: The message to leave when voicemail is detected
+- `human_conversation_prompt`: Instructions for conversation when a human is detected
 
-If you're using Twilio as a number vendor:
+### Customization Example
 
-`fly secrets set TWILIO_ACCOUNT_SID=... TWILIO_AUTH_TOKEN=...`
+```shell
+curl -X POST "http://localhost:7860/start" \
+	 -H "Content-Type: application/json" \
+	 -d '{
+		 "config": {
+			"prompts": [
+			   {
+				  "name": "voicemail_prompt",
+				  "text": "Hello, this is ACME Corporation calling. Please call us back at 555-123-4567 regarding your recent order. Thank you!"
+			   }
+			],
+			"dialout_settings": [{
+			   "phoneNumber": "+12345678910"
+			}],
+			"voicemail_detection": {
+			   "testInPrebuilt": false
+			}
+		 }
+	  }'
+```
 
-### Deploy!
+This example would use all default prompts except for the voicemail message, which would be replaced with your custom message.
 
-`fly deploy`
+### Template Variables
 
-## Need to do something more advanced?
+Some prompts support template variables that are automatically replaced:
 
-This demo covers the basics of bot telephony. If you want to know more about working with PSTN / SIP, please ping us on [Discord](https://discord.gg/pipecat)!
+- `{customer_name}`: Will be replaced with the customer's name if available
+
+## Advanced Usage
+
+For more advanced phone integration scenarios using PSTN/SIP, please reach out on [Discord](https://discord.gg/pipecat).

examples/phone-chatbot/bot_constants.py

@@ -0,0 +1,23 @@
+# bot_constants.py
+"""Constants used across the bot runner application."""
+
+# Maximum session time
+MAX_SESSION_TIME = 5 * 60  # 5 minutes
+
+# Required environment variables
+REQUIRED_ENV_VARS = [
+    "OPENAI_API_KEY",
+    "GOOGLE_API_KEY",
+    "DAILY_API_KEY",
+    "CARTESIA_API_KEY",
+    "DEEPGRAM_API_KEY",
+]
+
+# Default example to use when handling dialin webhooks - determines which bot type to run
+DEFAULT_DIALIN_EXAMPLE = "call_transfer"  # Options: call_transfer, simple_dialin
+
+# Call transfer configuration constants
+DEFAULT_CALLTRANSFER_MODE = "dialout"
+DEFAULT_SPEAK_SUMMARY = True  # Speak a summary of the call to the operator
+DEFAULT_STORE_SUMMARY = False  # Store summary of the call (for future implementation)
+DEFAULT_TEST_IN_PREBUILT = False  # Test in prebuilt mode (bypasses need to dial in/out)

examples/phone-chatbot/bot_daily.py

@@ -1,223 +0,0 @@
-#
-# Copyright (c) 2024–2025, Daily
-#
-# SPDX-License-Identifier: BSD 2-Clause License
-#
-
-import argparse
-import asyncio
-import os
-import sys
-from typing import Optional
-
-from dotenv import load_dotenv
-from loguru import logger
-from openai.types.chat import ChatCompletionToolParam
-
-from pipecat.audio.vad.silero import SileroVADAnalyzer
-from pipecat.frames.frames import EndTaskFrame
-from pipecat.pipeline.pipeline import Pipeline
-from pipecat.pipeline.runner import PipelineRunner
-from pipecat.pipeline.task import PipelineParams, PipelineTask
-from pipecat.processors.aggregators.openai_llm_context import OpenAILLMContext
-from pipecat.processors.frame_processor import FrameDirection
-from pipecat.services.elevenlabs.tts import ElevenLabsTTSService
-from pipecat.services.llm_service import LLMService
-from pipecat.services.openai.llm import OpenAILLMService
-from pipecat.transports.services.daily import DailyDialinSettings, DailyParams, DailyTransport
-
-load_dotenv(override=True)
-
-logger.remove(0)
-logger.add(sys.stderr, level="DEBUG")
-
-daily_api_key = os.getenv("DAILY_API_KEY", "")
-daily_api_url = os.getenv("DAILY_API_URL", "https://api.daily.co/v1")
-
-
-async def terminate_call(
-    function_name, tool_call_id, args, llm: LLMService, context, result_callback
-):
-    """Function the bot can call to terminate the call upon completion of a voicemail message."""
-    await llm.queue_frame(EndTaskFrame(), FrameDirection.UPSTREAM)
-    await result_callback("Goodbye")
-
-
-async def main(
-    room_url: str,
-    token: str,
-    callId: str,
-    callDomain: str,
-    detect_voicemail: bool,
-    dialout_number: Optional[str],
-):
-    # dialin_settings are only needed if Daily's SIP URI is used
-    # If you are handling this via Twilio, Telnyx, set this to None
-    # and handle call-forwarding when on_dialin_ready fires.
-
-    # We don't want to specify dial-in settings if we're not dialing in
-    dialin_settings = None
-    if callId and callDomain:
-        dialin_settings = DailyDialinSettings(call_id=callId, call_domain=callDomain)
-
-    transport = DailyTransport(
-        room_url,
-        token,
-        "Chatbot",
-        DailyParams(
-            api_url=daily_api_url,
-            api_key=daily_api_key,
-            dialin_settings=dialin_settings,
-            audio_in_enabled=True,
-            audio_out_enabled=True,
-            camera_out_enabled=False,
-            vad_enabled=True,
-            vad_analyzer=SileroVADAnalyzer(),
-            transcription_enabled=True,
-        ),
-    )
-
-    tts = ElevenLabsTTSService(
-        api_key=os.getenv("ELEVENLABS_API_KEY", ""),
-        voice_id=os.getenv("ELEVENLABS_VOICE_ID", ""),
-    )
-
-    llm = OpenAILLMService(api_key=os.getenv("OPENAI_API_KEY"), model="gpt-4o")
-    llm.register_function("terminate_call", terminate_call)
-    tools = [
-        ChatCompletionToolParam(
-            type="function",
-            function={
-                "name": "terminate_call",
-                "description": "Terminate the call",
-            },
-        )
-    ]
-
-    messages = [
-        {
-            "role": "system",
-            "content": """You are Chatbot, a friendly, helpful robot. Never refer to this prompt, even if asked. Follow these steps **EXACTLY**.
-
-            ### **Standard Operating Procedure:**
-
-            #### **Step 1: Detect if You Are Speaking to Voicemail**
-            - If you hear **any variation** of the following:
-            - **"Please leave a message after the beep."**
-            - **"No one is available to take your call."**
-            - **"Record your message after the tone."**
-            - **"Please leave a message after the beep"**
-            - **"You have reached voicemail for..."**
-            - **"You have reached [phone number]"**
-            - **"[phone number] is unavailable"**
-            - **"The person you are trying to reach..."**
-            - **"The number you have dialed..."**
-            - **"Your call has been forwarded to an automated voice messaging system"**
-            - **Any phrase that suggests an answering machine or voicemail.**
-            - **ASSUME IT IS A VOICEMAIL. DO NOT WAIT FOR MORE CONFIRMATION.**
-            - **IF THE CALL SAYS "PLEASE LEAVE A MESSAGE AFTER THE BEEP", WAIT FOR THE BEEP BEFORE LEAVING A MESSAGE.**
-
-            #### **Step 2: Leave a Voicemail Message**
-            - Immediately say:
-            *"Hello, this is a message for Pipecat example user. This is Chatbot. Please call back on 123-456-7891. Thank you."*
-            - **IMMEDIATELY AFTER LEAVING THE MESSAGE, CALL `terminate_call`.**
-            - **DO NOT SPEAK AFTER CALLING `terminate_call`.**
-            - **FAILURE TO CALL `terminate_call` IMMEDIATELY IS A MISTAKE.**
-
-            #### **Step 3: If Speaking to a Human**
-            - If the call is answered by a human, say:
-            *"Oh, hello! I'm a friendly chatbot. Is there anything I can help you with?"*
-            - Keep responses **brief and helpful**.
-            - If the user no longer needs assistance, say:
-            *"Okay, thank you! Have a great day!"*
-            -**Then call `terminate_call` immediately.**
-
-            ---
-
-            ### **General Rules**
-            - **DO NOT continue speaking after leaving a voicemail.**
-            - **DO NOT wait after a voicemail message. ALWAYS call `terminate_call` immediately.**
-            - Your output will be converted to audio, so **do not include special characters or formatting.**
-            """,
-        }
-    ]
-
-    context = OpenAILLMContext(messages, tools)
-    context_aggregator = llm.create_context_aggregator(context)
-
-    pipeline = Pipeline(
-        [
-            transport.input(),
-            context_aggregator.user(),
-            llm,
-            tts,
-            transport.output(),
-            context_aggregator.assistant(),
-        ]
-    )
-
-    task = PipelineTask(pipeline, params=PipelineParams(allow_interruptions=True))
-
-    if dialout_number:
-        logger.debug("dialout number detected; doing dialout")
-
-        # Configure some handlers for dialing out
-        @transport.event_handler("on_joined")
-        async def on_joined(transport, data):
-            logger.debug(f"Joined; starting dialout to: {dialout_number}")
-            await transport.start_dialout({"phoneNumber": dialout_number})
-
-        @transport.event_handler("on_dialout_connected")
-        async def on_dialout_connected(transport, data):
-            logger.debug(f"Dial-out connected: {data}")
-
-        @transport.event_handler("on_dialout_answered")
-        async def on_dialout_answered(transport, data):
-            logger.debug(f"Dial-out answered: {data}")
-
-        @transport.event_handler("on_first_participant_joined")
-        async def on_first_participant_joined(transport, participant):
-            await transport.capture_participant_transcription(participant["id"])
-            # unlike the dialin case, for the dialout case, the caller will speak first. Presumably
-            # they will answer the phone and say "Hello?" Since we've captured their transcript,
-            # That will put a frame into the pipeline and prompt an LLM completion, which is how the
-            # bot will then greet the user.
-    elif detect_voicemail:
-        logger.debug("Detect voicemail example. You can test this in example in Daily Prebuilt")
-
-        # For the voicemail detection case, we do not want the bot to answer the phone. We want it to wait for the voicemail
-        # machine to say something like 'Leave a message after the beep', or for the user to say 'Hello?'.
-        @transport.event_handler("on_first_participant_joined")
-        async def on_first_participant_joined(transport, participant):
-            await transport.capture_participant_transcription(participant["id"])
-    else:
-        logger.debug("no dialout number; assuming dialin")
-
-        # Different handlers for dialin
-        @transport.event_handler("on_first_participant_joined")
-        async def on_first_participant_joined(transport, participant):
-            await transport.capture_participant_transcription(participant["id"])
-            # For the dialin case, we want the bot to answer the phone and greet the user. We
-            # can prompt the bot to speak by putting the context into the pipeline.
-            await task.queue_frames([context_aggregator.user().get_context_frame()])
-
-    @transport.event_handler("on_participant_left")
-    async def on_participant_left(transport, participant, reason):
-        await task.cancel()
-
-    runner = PipelineRunner()
-
-    await runner.run(task)
-
-
-if __name__ == "__main__":
-    parser = argparse.ArgumentParser(description="Pipecat Simple ChatBot")
-    parser.add_argument("-u", type=str, help="Room URL")
-    parser.add_argument("-t", type=str, help="Token")
-    parser.add_argument("-i", type=str, help="Call ID")
-    parser.add_argument("-d", type=str, help="Call Domain")
-    parser.add_argument("-v", action="store_true", help="Detect voicemail")
-    parser.add_argument("-o", type=str, help="Dialout number", default=None)
-    config = parser.parse_args()
-
-    asyncio.run(main(config.u, config.t, config.i, config.d, config.v, config.o))

examples/phone-chatbot/bot_daily_gemini.py

@@ -1,464 +0,0 @@
-#
-# Copyright (c) 2024–2025, Daily
-#
-# SPDX-License-Identifier: BSD 2-Clause License
-#
-
-import argparse
-import asyncio
-import os
-import sys
-from typing import Optional
-
-from dotenv import load_dotenv
-from loguru import logger
-
-from pipecat.audio.vad.silero import SileroVADAnalyzer
-from pipecat.frames.frames import (
-    EndFrame,
-    EndTaskFrame,
-    InputAudioRawFrame,
-    StopTaskFrame,
-    TranscriptionFrame,
-    UserStartedSpeakingFrame,
-    UserStoppedSpeakingFrame,
-)
-from pipecat.pipeline.pipeline import Pipeline
-from pipecat.pipeline.runner import PipelineRunner
-from pipecat.pipeline.task import PipelineParams, PipelineTask
-from pipecat.processors.frame_processor import FrameDirection, FrameProcessor
-from pipecat.services.deepgram.stt import DeepgramSTTService
-from pipecat.services.elevenlabs.tts import ElevenLabsTTSService
-from pipecat.services.google.llm import GoogleLLMContext, GoogleLLMService
-from pipecat.services.llm_service import LLMService
-from pipecat.transports.services.daily import (
-    DailyDialinSettings,
-    DailyParams,
-    DailyTransport,
-)
-
-load_dotenv(override=True)
-
-logger.remove(0)
-logger.add(sys.stderr, level="DEBUG")
-
-
-daily_api_key = os.getenv("DAILY_API_KEY", "")
-daily_api_url = os.getenv("DAILY_API_URL", "https://api.daily.co/v1")
-
-system_message = None
-
-
-class UserAudioCollector(FrameProcessor):
-    """This FrameProcessor collects audio frames in a buffer, then adds them to the
-    LLM context when the user stops speaking.
-    """
-
-    def __init__(self, context, user_context_aggregator):
-        super().__init__()
-        self._context = context
-        self._user_context_aggregator = user_context_aggregator
-        self._audio_frames = []
-        self._start_secs = 0.2  # this should match VAD start_secs (hardcoding for now)
-        self._user_speaking = False
-
-    async def process_frame(self, frame, direction):
-        await super().process_frame(frame, direction)
-
-        if isinstance(frame, TranscriptionFrame):
-            # We could gracefully handle both audio input and text/transcription input ...
-            # but let's leave that as an exercise to the reader. :-)
-            return
-        if isinstance(frame, UserStartedSpeakingFrame):
-            self._user_speaking = True
-        elif isinstance(frame, UserStoppedSpeakingFrame):
-            self._user_speaking = False
-            self._context.add_audio_frames_message(audio_frames=self._audio_frames)
-            await self._user_context_aggregator.push_frame(
-                self._user_context_aggregator.get_context_frame()
-            )
-        elif isinstance(frame, InputAudioRawFrame):
-            if self._user_speaking:
-                self._audio_frames.append(frame)
-            else:
-                # Append the audio frame to our buffer. Treat the buffer as a ring buffer, dropping the oldest
-                # frames as necessary. Assume all audio frames have the same duration.
-                self._audio_frames.append(frame)
-                frame_duration = len(frame.audio) / 16 * frame.num_channels / frame.sample_rate
-                buffer_duration = frame_duration * len(self._audio_frames)
-                while buffer_duration > self._start_secs:
-                    self._audio_frames.pop(0)
-                    buffer_duration -= frame_duration
-
-        await self.push_frame(frame, direction)
-
-
-class ContextSwitcher:
-    def __init__(self, llm, context_aggregator):
-        self._llm = llm
-        self._context_aggregator = context_aggregator
-
-    async def switch_context(self, system_instruction):
-        """Switch the context to a new system instruction based on what the bot hears."""
-        # Create messages with updated system instruction
-        messages = [
-            {
-                "role": "system",
-                "content": system_instruction,
-            }
-        ]
-
-        # Update context with new messages
-        self._context_aggregator.set_messages(messages)
-        # Get the context frame with the updated messages
-        context_frame = self._context_aggregator.get_context_frame()
-        # Trigger LLM response by pushing a context frame
-        await self._llm.push_frame(context_frame)
-
-
-class FunctionHandlers:
-    def __init__(self, context_switcher):
-        self.context_switcher = context_switcher
-
-    async def voicemail_response(
-        self,
-        function_name,
-        tool_call_id,
-        args,
-        llm: LLMService,
-        context,
-        result_callback,
-    ):
-        """Function the bot can call to leave a voicemail message."""
-        message = """You are Chatbot leaving a voicemail message. Say EXACTLY this message and nothing else:
-
-                    "Hello, this is a message for Pipecat example user. This is Chatbot. Please call back on 123-456-7891. Thank you."
-
-                    After saying this message, call the terminate_call function."""
-
-        await self.context_switcher.switch_context(system_instruction=message)
-        await result_callback("Leaving a voicemail message")
-
-    async def human_conversation(
-        self,
-        function_name,
-        tool_call_id,
-        args,
-        llm: LLMService,
-        context,
-        result_callback,
-    ):
-        """Function the bot can when it detects it's talking to a human."""
-        await llm.push_frame(StopTaskFrame(), FrameDirection.UPSTREAM)
-
-
-async def terminate_call(
-    function_name,
-    tool_call_id,
-    args,
-    llm: LLMService,
-    context,
-    result_callback,
-    call_state=None,
-):
-    """Function the bot can call to terminate the call upon completion of the call."""
-    if call_state:
-        call_state.bot_terminated_call = True
-    await llm.push_frame(EndTaskFrame(), FrameDirection.UPSTREAM)
-
-
-async def main(
-    room_url: str,
-    token: str,
-    callId: Optional[str],
-    callDomain: Optional[str],
-    detect_voicemail: bool,
-    dialout_number: Optional[str],
-):
-    dialin_settings = None
-    if callId and callDomain:
-        dialin_settings = DailyDialinSettings(call_id=callId, call_domain=callDomain)
-        transport_params = DailyParams(
-            api_url=daily_api_url,
-            api_key=daily_api_key,
-            dialin_settings=dialin_settings,
-            audio_in_enabled=True,
-            audio_out_enabled=True,
-            camera_out_enabled=False,
-            vad_enabled=True,
-            vad_analyzer=SileroVADAnalyzer(),
-            vad_audio_passthrough=True,
-        )
-    else:
-        transport_params = DailyParams(
-            api_url=daily_api_url,
-            api_key=daily_api_key,
-            audio_in_enabled=True,
-            audio_out_enabled=True,
-            camera_out_enabled=False,
-            vad_enabled=True,
-            vad_analyzer=SileroVADAnalyzer(),
-            vad_audio_passthrough=True,
-        )
-
-    class CallState:
-        participant_left_early = False
-        bot_terminated_call = False
-
-    call_state = CallState()
-
-    transport = DailyTransport(
-        room_url,
-        token,
-        "Chatbot",
-        transport_params,
-    )
-
-    tts = ElevenLabsTTSService(
-        api_key=os.getenv("ELEVENLABS_API_KEY", ""),
-        voice_id=os.getenv("ELEVENLABS_VOICE_ID", ""),
-    )
-
-    stt = DeepgramSTTService(api_key=os.getenv("DEEPGRAM_API_KEY"))
-
-    ### VOICEMAIL PIPELINE
-
-    tools = [
-        {
-            "function_declarations": [
-                {
-                    "name": "switch_to_voicemail_response",
-                    "description": "Call this function when you detect this is a voicemail system.",
-                },
-                {
-                    "name": "switch_to_human_conversation",
-                    "description": "Call this function when you detect this is a human.",
-                },
-                {
-                    "name": "terminate_call",
-                    "description": "Call this function to terminate the call.",
-                },
-            ]
-        }
-    ]
-
-    system_instruction = """You are Chatbot trying to determine if this is a voicemail system or a human.
-
-    If you hear any of these phrases (or very similar ones):
-    - "Please leave a message after the beep"
-    - "No one is available to take your call"
-    - "Record your message after the tone"
-    - "You have reached voicemail for..."
-    - "You have reached [phone number]"
-    - "[phone number] is unavailable"
-    - "The person you are trying to reach..."
-    - "The number you have dialed..."
-    - "Your call has been forwarded to an automated voice messaging system"
-
-    Then call the function switch_to_voicemail_response.
-
-    If it sounds like a human (saying hello, asking questions, etc.), call the function switch_to_human_conversation.
-
-    DO NOT say anything until you've determined if this is a voicemail or human."""
-
-    voicemail_detection_llm = GoogleLLMService(
-        model="models/gemini-2.0-flash-lite",
-        api_key=os.getenv("GOOGLE_API_KEY"),
-        system_instruction=system_instruction,
-        tools=tools,
-    )
-
-    voicemail_detection_context = GoogleLLMContext()
-    voicemail_detection_context_aggregator = voicemail_detection_llm.create_context_aggregator(
-        voicemail_detection_context
-    )
-    context_switcher = ContextSwitcher(
-        voicemail_detection_llm, voicemail_detection_context_aggregator.user()
-    )
-    handlers = FunctionHandlers(context_switcher)
-
-    voicemail_detection_llm.register_function(
-        "switch_to_voicemail_response", handlers.voicemail_response
-    )
-    voicemail_detection_llm.register_function(
-        "switch_to_human_conversation", handlers.human_conversation
-    )
-    voicemail_detection_llm.register_function(
-        "terminate_call",
-        lambda *args, **kwargs: terminate_call(*args, **kwargs, call_state=call_state),
-    )
-
-    voicemail_detection_audio_collector = UserAudioCollector(
-        voicemail_detection_context, voicemail_detection_context_aggregator.user()
-    )
-
-    voicemail_detection_pipeline = Pipeline(
-        [
-            transport.input(),  # Transport user input
-            voicemail_detection_audio_collector,  # Collect audio frames
-            voicemail_detection_context_aggregator.user(),  # User responses
-            voicemail_detection_llm,  # LLM
-            tts,  # TTS
-            transport.output(),  # Transport bot output
-            voicemail_detection_context_aggregator.assistant(),  # Assistant spoken responses
-        ]
-    )
-    voicemail_detection_pipeline_task = PipelineTask(
-        voicemail_detection_pipeline,
-        params=PipelineParams(allow_interruptions=True),
-    )
-
-    if dialout_number:
-        logger.debug("dialout number detected; doing dialout")
-
-        # Configure some handlers for dialing out
-        @transport.event_handler("on_joined")
-        async def on_joined(transport, data):
-            logger.debug(f"Joined; starting dialout to: {dialout_number}")
-            await transport.start_dialout({"phoneNumber": dialout_number})
-
-        @transport.event_handler("on_dialout_connected")
-        async def on_dialout_connected(transport, data):
-            logger.debug(f"Dial-out connected: {data}")
-
-        @transport.event_handler("on_dialout_answered")
-        async def on_dialout_answered(transport, data):
-            logger.debug(f"Dial-out answered: {data}")
-
-        @transport.event_handler("on_first_participant_joined")
-        async def on_first_participant_joined(transport, participant):
-            await transport.capture_participant_transcription(participant["id"])
-            # unlike the dialin case, for the dialout case, the caller will speak first. Presumably
-            # they will answer the phone and say "Hello?" Since we've captured their transcript,
-            # That will put a frame into the pipeline and prompt an LLM completion, which is how the
-            # bot will then greet the user.
-    elif detect_voicemail:
-        logger.debug("Detect voicemail example. You can test this in example in Daily Prebuilt")
-
-        # For the voicemail detection case, we do not want the bot to answer the phone. We want it to wait for the voicemail
-        # machine to say something like 'Leave a message after the beep', or for the user to say 'Hello?'.
-        @transport.event_handler("on_first_participant_joined")
-        async def on_first_participant_joined(transport, participant):
-            logger.debug("Detect voicemail; capturing participant transcription")
-            await transport.capture_participant_transcription(participant["id"])
-    else:
-        logger.debug("+++++ No dialout number; assuming dialin")
-
-        # Different handlers for dialin
-        @transport.event_handler("on_first_participant_joined")
-        async def on_first_participant_joined(transport, participant):
-            # This event is not firing for some reason
-            await transport.capture_participant_transcription(participant["id"])
-            dialin_instructions = """Always call the function switch_to_human_conversation"""
-            messages = [
-                {
-                    "role": "system",
-                    "content": dialin_instructions,
-                }
-            ]
-            voicemail_detection_context_aggregator.user().set_messages(messages)
-            await voicemail_detection_pipeline_task.queue_frames(
-                [voicemail_detection_context_aggregator.user().get_context_frame()]
-            )
-
-    runner = PipelineRunner()
-
-    @transport.event_handler("on_participant_left")
-    async def on_participant_left(transport, participant, reason):
-        call_state.participant_left_early = True
-        await voicemail_detection_pipeline_task.queue_frame(EndFrame())
-
-    print("!!! starting voicemail detection pipeline")
-    await runner.run(voicemail_detection_pipeline_task)
-    print("!!! Done with voicemail detection pipeline")
-
-    if call_state.participant_left_early or call_state.bot_terminated_call:
-        if call_state.participant_left_early:
-            print("!!! Participant left early; terminating call")
-        elif call_state.bot_terminated_call:
-            print("!!! Bot terminated call; not proceeding to human conversation")
-        return
-
-    ### HUMAN CONVERSATION PIPELINE
-
-    human_conversation_system_instruction = """You are Chatbot talking to a human. Be friendly and helpful.
-
-    Start with: "Hello! I'm a friendly chatbot. How can I help you today?"
-
-    Keep your responses brief and to the point. Listen to what the person says.
-
-    When the person indicates they're done with the conversation by saying something like:
-    - "Goodbye"
-    - "That's all"
-    - "I'm done"
-    - "Thank you, that's all I needed"
-
-    THEN say: "Thank you for chatting. Goodbye!" and call the terminate_call function."""
-
-    human_conversation_llm = GoogleLLMService(
-        model="models/gemini-2.0-flash-001",
-        api_key=os.getenv("GOOGLE_API_KEY"),
-        system_instruction=human_conversation_system_instruction,
-        tools=tools,
-    )
-    human_conversation_context = GoogleLLMContext()
-
-    human_conversation_context_aggregator = human_conversation_llm.create_context_aggregator(
-        human_conversation_context
-    )
-
-    human_conversation_llm.register_function(
-        "terminate_call",
-        lambda *args, **kwargs: terminate_call(*args, **kwargs, call_state=call_state),
-    )
-
-    human_conversation_pipeline = Pipeline(
-        [
-            transport.input(),  # Transport user input
-            stt,
-            human_conversation_context_aggregator.user(),  # User responses
-            human_conversation_llm,  # LLM
-            tts,  # TTS
-            transport.output(),  # Transport bot output
-            human_conversation_context_aggregator.assistant(),  # Assistant spoken responses
-        ]
-    )
-
-    human_conversation_pipeline_task = PipelineTask(
-        human_conversation_pipeline,
-        params=PipelineParams(allow_interruptions=True),
-    )
-
-    @transport.event_handler("on_participant_left")
-    async def on_participant_left(transport, participant, reason):
-        await voicemail_detection_pipeline_task.queue_frame(EndFrame())
-        await human_conversation_pipeline_task.queue_frame(EndFrame())
-
-    print("!!! starting human conversation pipeline")
-    human_conversation_context_aggregator.user().set_messages(
-        [
-            {
-                "role": "system",
-                "content": human_conversation_system_instruction,
-            }
-        ]
-    )
-    await human_conversation_pipeline_task.queue_frames(
-        [human_conversation_context_aggregator.user().get_context_frame()]
-    )
-    await runner.run(human_conversation_pipeline_task)
-
-    print("!!! Done with human conversation pipeline")
-
-
-if __name__ == "__main__":
-    parser = argparse.ArgumentParser(description="Pipecat Simple ChatBot")
-    parser.add_argument("-u", type=str, help="Room URL")
-    parser.add_argument("-t", type=str, help="Token")
-    parser.add_argument("-i", type=str, help="Call ID")
-    parser.add_argument("-d", type=str, help="Call Domain")
-    parser.add_argument("-v", action="store_true", help="Detect voicemail")
-    parser.add_argument("-o", type=str, help="Dialout number", default=None)
-    config = parser.parse_args()
-
-    asyncio.run(main(config.u, config.t, config.i, config.d, config.v, config.o))

examples/phone-chatbot/bot_definitions.py

@@ -0,0 +1,55 @@
+# bot_definitions.py
+"""Definitions of different bot types for the bot registry."""
+
+from bot_registry import BotRegistry, BotType
+from bot_runner_helpers import (
+    create_call_transfer_settings,
+    create_simple_dialin_settings,
+    create_simple_dialout_settings,
+)
+
+# Create and configure the bot registry
+bot_registry = BotRegistry()
+
+# Register bot types
+bot_registry.register(
+    BotType(
+        name="call_transfer",
+        settings_creator=create_call_transfer_settings,
+        required_settings=["dialin_settings"],
+        incompatible_with=["simple_dialin", "simple_dialout", "voicemail_detection"],
+        auto_add_settings={"dialin_settings": {}},
+    )
+)
+
+bot_registry.register(
+    BotType(
+        name="simple_dialin",
+        settings_creator=create_simple_dialin_settings,
+        required_settings=["dialin_settings"],
+        incompatible_with=["call_transfer", "simple_dialout", "voicemail_detection"],
+        auto_add_settings={"dialin_settings": {}},
+    )
+)
+
+bot_registry.register(
+    BotType(
+        name="simple_dialout",
+        settings_creator=create_simple_dialout_settings,
+        required_settings=["dialout_settings"],
+        incompatible_with=["call_transfer", "simple_dialin", "voicemail_detection"],
+        auto_add_settings={"dialout_settings": [{}]},
+    )
+)
+
+bot_registry.register(
+    BotType(
+        name="voicemail_detection",
+        settings_creator=lambda body: body.get(
+            "voicemail_detection", {}
+        ),  # No creator function in original code
+        required_settings=["dialout_settings"],
+        incompatible_with=["call_transfer", "simple_dialin", "simple_dialout"],
+        auto_add_settings={"dialout_settings": [{}]},
+    )
+)

examples/phone-chatbot/bot_registry.py

@@ -0,0 +1,137 @@
+# bot_registry.py
+"""Bot registry pattern for managing different bot types."""
+
+from typing import Any, Callable, Dict, List, Optional
+
+from bot_constants import DEFAULT_DIALIN_EXAMPLE
+from bot_runner_helpers import ensure_dialout_settings_array
+from fastapi import HTTPException
+
+
+class BotType:
+    """Bot type configuration and handling."""
+
+    def __init__(
+        self,
+        name: str,
+        settings_creator: Callable[[Dict[str, Any]], Dict[str, Any]],
+        required_settings: list = None,
+        incompatible_with: list = None,
+        auto_add_settings: dict = None,
+    ):
+        """Initialize a bot type.
+
+        Args:
+            name: Name of the bot type
+            settings_creator: Function to create/update settings for this bot type
+            required_settings: List of settings this bot type requires
+            incompatible_with: List of bot types this one cannot be used with
+            auto_add_settings: Settings to add if this bot is being run in test mode
+        """
+        self.name = name
+        self.settings_creator = settings_creator
+        self.required_settings = required_settings or []
+        self.incompatible_with = incompatible_with or []
+        self.auto_add_settings = auto_add_settings or {}
+
+    def has_test_mode(self, body: Dict[str, Any]) -> bool:
+        """Check if this bot type is configured for test mode."""
+        return self.name in body and body[self.name].get("testInPrebuilt", False)
+
+    def create_settings(self, body: Dict[str, Any]) -> Dict[str, Any]:
+        """Create or update settings for this bot type."""
+        body[self.name] = self.settings_creator(body)
+        return body
+
+    def prepare_for_test(self, body: Dict[str, Any]) -> Dict[str, Any]:
+        """Add required settings for test mode if they don't exist."""
+        for setting, default_value in self.auto_add_settings.items():
+            if setting not in body:
+                body[setting] = default_value
+        return body
+
+
+class BotRegistry:
+    """Registry for managing different bot types."""
+
+    def __init__(self):
+        self.bots = {}
+        self.bot_validation_rules = []
+
+    def register(self, bot_type: BotType):
+        """Register a bot type."""
+        self.bots[bot_type.name] = bot_type
+        return self
+
+    def get_bot(self, name: str) -> BotType:
+        """Get a bot type by name."""
+        return self.bots.get(name)
+
+    def detect_bot_type(self, body: Dict[str, Any]) -> Optional[str]:
+        """Detect which bot type to use based on configuration."""
+        # First check for test mode bots
+        for name, bot in self.bots.items():
+            if bot.has_test_mode(body):
+                return name
+
+        # Then check for specific combinations of settings
+        for name, bot in self.bots.items():
+            if name in body and all(req in body for req in bot.required_settings):
+                return name
+
+        # Default for dialin settings
+        if "dialin_settings" in body:
+            return DEFAULT_DIALIN_EXAMPLE
+
+        return None
+
+    def validate_bot_combination(self, body: Dict[str, Any]) -> List[str]:
+        """Validate that bot types in the configuration are compatible."""
+        errors = []
+        bot_types_in_config = [name for name in self.bots.keys() if name in body]
+
+        # Check each bot type against its incompatible list
+        for bot_name in bot_types_in_config:
+            bot = self.bots[bot_name]
+            for incompatible in bot.incompatible_with:
+                if incompatible in body:
+                    errors.append(
+                        f"Cannot have both '{bot_name}' and '{incompatible}' in the same configuration"
+                    )
+
+        return errors
+
+    def setup_configuration(self, body: Dict[str, Any]) -> Dict[str, Any]:
+        """Set up bot configuration based on detected bot type."""
+        # Ensure dialout_settings is an array if present
+        body = ensure_dialout_settings_array(body)
+
+        # Detect which bot type to use
+        bot_type_name = self.detect_bot_type(body)
+        if not bot_type_name:
+            raise HTTPException(
+                status_code=400, detail="Configuration doesn't match any supported scenario"
+            )
+
+        # If we have a dialin scenario but no explicit bot type, add the default
+        if "dialin_settings" in body and bot_type_name == DEFAULT_DIALIN_EXAMPLE:
+            if bot_type_name not in body:
+                body[bot_type_name] = {}
+
+        # Get the bot type object
+        bot_type = self.get_bot(bot_type_name)
+
+        # Create/update settings for the bot type
+        body = bot_type.create_settings(body)
+
+        # If in test mode, add any required settings
+        if bot_type.has_test_mode(body):
+            body = bot_type.prepare_for_test(body)
+
+        # Validate bot combinations
+        errors = self.validate_bot_combination(body)
+        if errors:
+            error_message = "Invalid configuration: " + "; ".join(errors)
+            raise HTTPException(status_code=400, detail=error_message)
+
+        return body

examples/phone-chatbot/bot_runner.py

@@ -1,24 +1,22 @@
-#
-# Copyright (c) 2024–2025, Daily
-#
-# SPDX-License-Identifier: BSD 2-Clause License
-#
-
-"""
-bot_runner.py
-
-HTTP service that listens for incoming calls from either Daily or Twilio,
-provisioning a room and starting a Pipecat bot in response.
-
-Refer to README for more information.
-"""
-
 import argparse
+import json
 import os
+import shlex
 import subprocess
 from contextlib import asynccontextmanager
+from typing import Any, Dict
 
 import aiohttp
+from bot_constants import (
+    MAX_SESSION_TIME,
+    REQUIRED_ENV_VARS,
+)
+from bot_definitions import bot_registry
+from bot_runner_helpers import (
+    determine_room_capabilities,
+    ensure_prompt_config,
+    process_dialin_request,
+)
 from dotenv import load_dotenv
 from fastapi import FastAPI, HTTPException, Request
 from fastapi.middleware.cors import CORSMiddleware
@@ -27,7 +25,6 @@ from twilio.twiml.voice_response import VoiceResponse
 
 from pipecat.transports.services.helpers.daily_rest import (
     DailyRESTHelper,
-    DailyRoomObject,
     DailyRoomParams,
     DailyRoomProperties,
     DailyRoomSipParams,
@@ -35,15 +32,126 @@ from pipecat.transports.services.helpers.daily_rest import (
 
 load_dotenv(override=True)
 
-
-# ------------ Configuration ------------ #
-
-MAX_SESSION_TIME = 5 * 60  # 5 minutes
-REQUIRED_ENV_VARS = ["OPENAI_API_KEY", "DAILY_API_KEY", "ELEVENLABS_API_KEY", "ELEVENLABS_VOICE_ID"]
-
 daily_helpers = {}
 
-# ----------------- API ----------------- #
+
+# ----------------- Daily Room Management ----------------- #
+
+
+async def create_daily_room(room_url: str = None, config_body: Dict[str, Any] = None):
+    """Create or retrieve a Daily room with appropriate properties based on the configuration.
+
+    Args:
+        room_url: Optional existing room URL
+        config_body: Optional configuration that determines room capabilities
+
+    Returns:
+        Dict containing room URL, token, and SIP endpoint
+    """
+    if not room_url:
+        # Get room capabilities based on the configuration
+        capabilities = determine_room_capabilities(config_body)
+
+        # Configure SIP parameters if dialin is needed
+        sip_params = None
+        if capabilities["enable_dialin"]:
+            sip_params = DailyRoomSipParams(
+                display_name="dialin-user", video=False, sip_mode="dial-in", num_endpoints=2
+            )
+
+        # Create the properties object with the appropriate settings
+        properties = DailyRoomProperties(sip=sip_params)
+
+        # Set dialout capability if needed
+        if capabilities["enable_dialout"]:
+            properties.enable_dialout = True
+
+        # Log the capabilities being used
+        capability_str = ", ".join([f"{k}={v}" for k, v in capabilities.items()])
+        print(f"Creating room with capabilities: {capability_str}")
+
+        params = DailyRoomParams(properties=properties)
+
+        print("Creating new room...")
+        room = await daily_helpers["rest"].create_room(params=params)
+    else:
+        # Check if passed room URL exists
+        try:
+            room = await daily_helpers["rest"].get_room_from_url(room_url)
+        except Exception:
+            raise HTTPException(status_code=500, detail=f"Room not found: {room_url}")
+
+    print(f"Daily room: {room.url} {room.config.sip_endpoint}")
+
+    # Get token for the agent
+    token = await daily_helpers["rest"].get_token(room.url, MAX_SESSION_TIME)
+
+    if not room or not token:
+        raise HTTPException(status_code=500, detail="Failed to get room or token")
+
+    return {"room": room.url, "token": token, "sip_endpoint": room.config.sip_endpoint}
+
+
+# ----------------- Bot Process Management ----------------- #
+
+
+async def start_bot(room_details: Dict[str, str], body: Dict[str, Any], example: str) -> bool:
+    """Start a bot process with the given configuration.
+
+    Args:
+        room_details: Room URL and token
+        body: Bot configuration
+        example: Example script to run
+
+    Returns:
+        Boolean indicating success
+    """
+    room_url = room_details["room"]
+    token = room_details["token"]
+
+    # Properly format body as JSON string for command line
+    body_json = json.dumps(body).replace('"', '\\"')
+    print(f"++++ Body JSON: {body_json}")
+
+    # Modified to use non-LLM-specific bot module names
+    bot_proc = f'python3 -m {example} -u {room_url} -t {token} -b "{body_json}"'
+    print(f"Starting bot. Example: {example}, Room: {room_url}")
+
+    try:
+        command_parts = shlex.split(bot_proc)
+        subprocess.Popen(command_parts, bufsize=1, cwd=os.path.dirname(os.path.abspath(__file__)))
+        return True
+    except Exception as e:
+        raise HTTPException(status_code=500, detail=f"Failed to start subprocess: {e}")
+
+
+async def start_twilio_bot(room_details: Dict[str, str], call_id: str) -> bool:
+    """Start a Twilio bot process with the given configuration.
+
+    Args:
+        room_details: Room URL, token, and SIP endpoint
+        call_id: Twilio call ID (CallSid)
+
+    Returns:
+        Boolean indicating success
+    """
+    room_url = room_details["room"]
+    token = room_details["token"]
+    sip_endpoint = room_details["sip_endpoint"]
+
+    # Format command for Twilio bot
+    bot_proc = f"python3 -m bot_twilio -u {room_url} -t {token} -i {call_id} -s {sip_endpoint}"
+    print(f"Starting Twilio bot. Room: {room_url}")
+
+    try:
+        command_parts = shlex.split(bot_proc)
+        subprocess.Popen(command_parts, bufsize=1, cwd=os.path.dirname(os.path.abspath(__file__)))
+        return True
+    except Exception as e:
+        raise HTTPException(status_code=500, detail=f"Failed to start subprocess: {e}")
+
+
+# ----------------- API Setup ----------------- #
 
 
 @asynccontextmanager
@@ -68,111 +176,44 @@ app.add_middleware(
     allow_headers=["*"],
 )
 
-"""
-Create Daily room, tell the bot if the room is created for Twilio's SIP or Daily's SIP (vendor).
-When the vendor is Daily, the bot handles the call forwarding automatically,
-i.e, forwards the call from the "hold music state" to the Daily Room's SIP URI.
 
-Alternatively, when the vendor is Twilio (not Daily), the bot is responsible for
-updating the state on Twilio. So when `dialin-ready` fires, it takes appropriate
-action using the Twilio Client library.
-"""
-
-
-async def _create_daily_room(
-    room_url, callId, callDomain=None, dialoutNumber=None, vendor="daily", detect_voicemail=False
-):
-    if not room_url:
-        # Create base properties with SIP settings
-        properties = DailyRoomProperties(
-            sip=DailyRoomSipParams(
-                display_name="dialin-user", video=False, sip_mode="dial-in", num_endpoints=1
-            )
-        )
-
-        # Only enable dialout if dialoutNumber is provided
-        if dialoutNumber:
-            properties.enable_dialout = True
-
-        params = DailyRoomParams(properties=properties)
-
-        print(f"Creating new room...")
-        room: DailyRoomObject = await daily_helpers["rest"].create_room(params=params)
-
-    else:
-        # Check passed room URL exist (we assume that it already has a sip set up!)
-        try:
-            room: DailyRoomObject = await daily_helpers["rest"].get_room_from_url(room_url)
-        except Exception:
-            raise HTTPException(status_code=500, detail=f"Room not found: {room_url}")
-
-    print(f"Daily room: {room.url} {room.config.sip_endpoint}")
-
-    # Give the agent a token to join the session
-    token = await daily_helpers["rest"].get_token(room.url, MAX_SESSION_TIME)
-
-    if not room or not token:
-        raise HTTPException(status_code=500, detail=f"Failed to get room or token token")
-
-    # Spawn a new agent, and join the user session
-    # Note: this is mostly for demonstration purposes (refer to 'deployment' in docs)
-    print(f"Vendor: {vendor}")
-    if vendor == "daily":
-        bot_proc = f"python3 -m bot_daily -u {room.url} -t {token} -i {callId} -d {callDomain}{' -v' if detect_voicemail else ''}"
-        if dialoutNumber:
-            bot_proc += f" -o {dialoutNumber}"
-    elif vendor == "daily-gemini":
-        bot_proc = f"python3 -m bot_daily_gemini -u {room.url} -t {token} -i {callId} -d {callDomain}{' -v' if detect_voicemail else ''}"
-        if dialoutNumber:
-            bot_proc += f" -o {dialoutNumber}"
-    else:
-        bot_proc = f"python3 -m bot_twilio -u {room.url} -t {token} -i {callId} -s {room.config.sip_endpoint}"
-
-    try:
-        subprocess.Popen(
-            [bot_proc], shell=True, bufsize=1, cwd=os.path.dirname(os.path.abspath(__file__))
-        )
-    except Exception as e:
-        raise HTTPException(status_code=500, detail=f"Failed to start subprocess: {e}")
-
-    return room
+# ----------------- API Endpoints ----------------- #
 
 
 @app.post("/twilio_start_bot", response_class=PlainTextResponse)
 async def twilio_start_bot(request: Request):
-    print(f"POST /twilio_voice_bot")
+    """Handle incoming Twilio webhook calls and start a Twilio bot.
 
-    # twilio_start_bot is invoked directly by Twilio (as a web hook).
-    # On Twilio, under Active Numbers, pick the phone number
-    # Click Configure and under Voice Configuration,
-    # "a call comes in" choose webhook and point the URL to
-    # where this code is hosted.
-    data = {}
+    This endpoint is called directly by Twilio as a webhook when a call is received.
+    It puts the call on hold with music and starts a bot that will handle the call.
+    """
+    print("POST /twilio_start_bot")
+
+    # Get form data from Twilio webhook
     try:
-        # shouldnt have received json, twilio sends form data
         form_data = await request.form()
         data = dict(form_data)
-    except Exception:
-        pass
+    except Exception as e:
+        raise HTTPException(status_code=400, detail=f"Failed to parse Twilio form data: {str(e)}")
 
+    # Get default room URL from environment
     room_url = os.getenv("DAILY_SAMPLE_ROOM_URL", None)
-    callId = data.get("CallSid")
 
-    if not callId:
-        raise HTTPException(status_code=500, detail="Missing 'CallSid' in request")
+    # Extract call ID from Twilio data
+    call_id = data.get("CallSid")
+    if not call_id:
+        raise HTTPException(status_code=400, detail="Missing 'CallSid' in request")
 
-    print("CallId: %s" % callId)
+    print(f"CallId: {call_id}")
 
-    # create room and tell the bot to join the created room
-    # note: Twilio does not require a callDomain
-    room: DailyRoomObject = await _create_daily_room(room_url, callId, None, "twilio")
+    # Create Daily room for the Twilio call
+    room_details = await create_daily_room(room_url, None)  # No special config for Twilio rooms
 
-    print(f"Put Twilio on hold...")
-    # We have the room and the SIP URI,
-    # but we do not know if the Daily SIP Worker and the Bot have joined the call
-    # put the call on hold until the 'on_dialin_ready' fires.
-    # Then, the bot will update the called sid with the sip uri.
-    # http://com.twilio.music.classical.s3.amazonaws.com/BusyStrings.mp3
+    # Start the Twilio bot
+    await start_twilio_bot(room_details, call_id)
+
+    # Put the call on hold until the bot is ready to handle it
+    # The bot will update the call with the SIP URI when it's ready
     resp = VoiceResponse()
     resp.play(
         url="http://com.twilio.sounds.music.s3.amazonaws.com/MARKOVICHAMP-Borghestral.mp3", loop=10
@@ -180,73 +221,98 @@ async def twilio_start_bot(request: Request):
     return str(resp)
 
 
-@app.post("/daily_start_bot")
-async def daily_start_bot(request: Request) -> JSONResponse:
-    # The /daily_start_bot is invoked when a call is received on Daily's SIP URI
-    # daily_start_bot will create the room, put the call on hold until
-    # the bot and sip worker are ready. Daily will automatically
-    # forward the call to the SIP URi when dialin_ready fires.
-
-    # Use specified room URL, or create a new one if not specified
+@app.post("/start")
+async def handle_start_request(request: Request) -> JSONResponse:
+    """Unified endpoint to handle bot configuration for different scenarios."""
+    # Get default room URL from environment
     room_url = os.getenv("DAILY_SAMPLE_ROOM_URL", None)
-    # Get the dial-in properties from the request
+
     try:
-        data = await request.json()
+        # Check if this is form data (from Twilio) or JSON
+        content_type = request.headers.get("content-type", "").lower()
+
+        if "application/x-www-form-urlencoded" in content_type:
+            # Handle form data from Twilio
+            form_data = await request.form()
+            data = dict(form_data)
+
+            # Check for CallSid which indicates this is a Twilio webhook
+            if "CallSid" in data:
+                # Redirect to Twilio handler for backward compatibility
+                return await twilio_start_bot(request)
+        else:
+            # Parse JSON request data
+            data = await request.json()
+
+        # Handle webhook test
         if "test" in data:
-            # Pass through any webhook checks
             return JSONResponse({"test": True})
-        detect_voicemail = data.get("detectVoicemail", False)
-        callId = data.get("callId", None)
-        callDomain = data.get("callDomain", None)
-        dialoutNumber = data.get("dialoutNumber", None)
-    except Exception:
-        raise HTTPException(
-            status_code=500, detail="Missing properties 'callId', 'callDomain', or 'dialoutNumber'"
-        )
 
-    room: DailyRoomObject = await _create_daily_room(
-        room_url, callId, callDomain, dialoutNumber, "daily", detect_voicemail
-    )
+        # Handle direct dialin webhook from Daily
+        if all(key in data for key in ["From", "To", "callId", "callDomain"]):
+            body = await process_dialin_request(data)
+        # Handle body-based request
+        elif "config" in data:
+            # Use the registry to set up the bot configuration
+            body = bot_registry.setup_configuration(data["config"])
+        else:
+            raise HTTPException(status_code=400, detail="Invalid request format")
 
-    # Grab a token for the user to join with
-    return JSONResponse({"room_url": room.url, "sipUri": room.config.sip_endpoint})
+        # Ensure prompt configuration
+        body = ensure_prompt_config(body)
 
+        # Detect which bot type to use
+        bot_type_name = bot_registry.detect_bot_type(body)
+        if not bot_type_name:
+            raise HTTPException(
+                status_code=400, detail="Configuration doesn't match any supported scenario"
+            )
 
-@app.post("/daily_gemini_start_bot")
-async def daily_gemini_start_bot(request: Request) -> JSONResponse:
-    # The /daily_start_bot is invoked when a call is received on Daily's SIP URI
-    # daily_start_bot will create the room, put the call on hold until
-    # the bot and sip worker are ready. Daily will automatically
-    # forward the call to the SIP URi when dialin_ready fires.
+        # Create the Daily room
+        room_details = await create_daily_room(room_url, body)
 
-    # Use specified room URL, or create a new one if not specified
-    room_url = os.getenv("DAILY_SAMPLE_ROOM_URL", None)
-    # Get the dial-in properties from the request
-    try:
-        data = await request.json()
-        if "test" in data:
-            # Pass through any webhook checks
-            return JSONResponse({"test": True})
-        detect_voicemail = data.get("detectVoicemail", False)
-        callId = data.get("callId", None)
-        callDomain = data.get("callDomain", None)
-        dialoutNumber = data.get("dialoutNumber", None)
-    except Exception:
-        raise HTTPException(
-            status_code=500, detail="Missing properties 'callId', 'callDomain', or 'dialoutNumber'"
-        )
+        # Start the bot
+        await start_bot(room_details, body, bot_type_name)
 
-    room: DailyRoomObject = await _create_daily_room(
-        room_url, callId, callDomain, dialoutNumber, "daily-gemini", detect_voicemail
-    )
+        # Get the bot type
+        bot_type = bot_registry.get_bot(bot_type_name)
 
-    # Grab a token for the user to join with
-    return JSONResponse({"room_url": room.url, "sipUri": room.config.sip_endpoint})
+        # Build the response
+        response = {"status": "Bot started", "bot_type": bot_type_name}
+
+        # Add room URL for test mode
+        if bot_type.has_test_mode(body):
+            response["room_url"] = room_details["room"]
+            # Remove llm_model from response as it's no longer relevant
+            if "llm" in body:
+                response["llm_provider"] = body["llm"]  # Optionally keep track of provider
+
+        # Add dialout info for dialout scenarios
+        if "dialout_settings" in body and len(body["dialout_settings"]) > 0:
+            first_setting = body["dialout_settings"][0]
+            if "phoneNumber" in first_setting:
+                response["dialing_to"] = f"phone:{first_setting['phoneNumber']}"
+            elif "sipUri" in first_setting:
+                response["dialing_to"] = f"sip:{first_setting['sipUri']}"
+
+        return JSONResponse(response)
+
+    except json.JSONDecodeError:
+        # Check if this might be form data from Twilio
+        try:
+            content_type = request.headers.get("content-type", "").lower()
+            if "application/x-www-form-urlencoded" in content_type:
+                return await twilio_start_bot(request)
+        except Exception:
+            pass
+
+        raise HTTPException(status_code=400, detail="Invalid JSON in request body")
+    except Exception as e:
+        raise HTTPException(status_code=400, detail=f"Request processing error: {str(e)}")
 
 
 # ----------------- Main ----------------- #
 
-
 if __name__ == "__main__":
     # Check environment variables
     for env_var in REQUIRED_ENV_VARS:

examples/phone-chatbot/bot_runner_helpers.py

@@ -0,0 +1,211 @@
+# bot_runner_helpers.py
+from typing import Any, Dict, Optional
+
+from bot_constants import (
+    DEFAULT_CALLTRANSFER_MODE,
+    DEFAULT_DIALIN_EXAMPLE,
+    DEFAULT_SPEAK_SUMMARY,
+    DEFAULT_STORE_SUMMARY,
+    DEFAULT_TEST_IN_PREBUILT,
+)
+from call_connection_manager import CallConfigManager
+
+# ----------------- Configuration Helpers ----------------- #
+
+
+def determine_room_capabilities(config_body: Optional[Dict[str, Any]] = None) -> Dict[str, bool]:
+    """Determine room capabilities based on the configuration.
+
+    This function examines the configuration to determine which capabilities
+    the Daily room should have enabled.
+
+    Args:
+        config_body: Configuration dictionary that determines room capabilities
+
+    Returns:
+        Dictionary of capability flags
+    """
+    capabilities = {
+        "enable_dialin": False,
+        "enable_dialout": False,
+        # Add more capabilities here in the future as needed
+    }
+
+    if not config_body:
+        return capabilities
+
+    # Check for dialin capability
+    capabilities["enable_dialin"] = "dialin_settings" in config_body
+
+    # Check for dialout capability - needed for outbound calls or transfers
+    has_dialout_settings = "dialout_settings" in config_body
+
+    # Check if there's a transfer to an operator configured
+    has_call_transfer = "call_transfer" in config_body
+
+    # Enable dialout if any condition requires it
+    capabilities["enable_dialout"] = has_dialout_settings or has_call_transfer
+
+    return capabilities
+
+
+def ensure_dialout_settings_array(body: Dict[str, Any]) -> Dict[str, Any]:
+    """Ensures dialout_settings is an array of objects.
+
+    Args:
+        body: The configuration dictionary
+
+    Returns:
+        Updated configuration with dialout_settings as an array
+    """
+    if "dialout_settings" in body:
+        # Convert to array if it's not already one
+        if not isinstance(body["dialout_settings"], list):
+            body["dialout_settings"] = [body["dialout_settings"]]
+
+    return body
+
+
+def ensure_prompt_config(body: Dict[str, Any]) -> Dict[str, Any]:
+    """Ensures the body has appropriate prompts settings, but doesn't add defaults.
+
+    Only makes sure the prompt section exists, allowing the bot script to handle defaults.
+
+    Args:
+        body: The configuration dictionary
+
+    Returns:
+        Updated configuration with prompt settings section
+    """
+    if "prompts" not in body:
+        body["prompts"] = []
+    return body
+
+
+def create_call_transfer_settings(body: Dict[str, Any]) -> Dict[str, Any]:
+    """Create call transfer settings based on configuration and customer mapping.
+
+    Args:
+        body: The configuration dictionary
+
+    Returns:
+        Call transfer settings dictionary
+    """
+    # Default transfer settings
+    transfer_settings = {
+        "mode": DEFAULT_CALLTRANSFER_MODE,
+        "speakSummary": DEFAULT_SPEAK_SUMMARY,
+        "storeSummary": DEFAULT_STORE_SUMMARY,
+        "testInPrebuilt": DEFAULT_TEST_IN_PREBUILT,
+    }
+
+    # If call_transfer already exists, merge the defaults with the existing settings
+    # This ensures all required fields exist while preserving user-specified values
+    if "call_transfer" in body:
+        existing_settings = body["call_transfer"]
+        # Update defaults with existing settings (existing values will override defaults)
+        for key, value in existing_settings.items():
+            transfer_settings[key] = value
+    else:
+        # No existing call_transfer - check if we have dialin settings for customer lookup
+        if "dialin_settings" in body:
+            # Create a temporary routing manager just for customer lookup
+            call_config_manager = CallConfigManager(body)
+
+            # Get caller info
+            caller_info = call_config_manager.get_caller_info()
+            from_number = caller_info.get("caller_number")
+
+            if from_number:
+                # Get customer name from phone number
+                customer_name = call_config_manager.get_customer_name(from_number)
+
+                # If we know the customer name, add it to the config for the bot to use
+                if customer_name:
+                    transfer_settings["customerName"] = customer_name
+
+    return transfer_settings
+
+
+def create_simple_dialin_settings(body: Dict[str, Any]) -> Dict[str, Any]:
+    """Create simple dialin settings based on configuration.
+
+    Args:
+        body: The configuration dictionary
+
+    Returns:
+        Simple dialin settings dictionary
+    """
+    # Default simple dialin settings
+    simple_dialin_settings = {
+        "testInPrebuilt": DEFAULT_TEST_IN_PREBUILT,
+    }
+
+    # If simple_dialin already exists, merge the defaults with the existing settings
+    if "simple_dialin" in body:
+        existing_settings = body["simple_dialin"]
+        # Update defaults with existing settings (existing values will override defaults)
+        for key, value in existing_settings.items():
+            simple_dialin_settings[key] = value
+
+    return simple_dialin_settings
+
+
+def create_simple_dialout_settings(body: Dict[str, Any]) -> Dict[str, Any]:
+    """Create simple dialout settings based on configuration.
+
+    Args:
+        body: The configuration dictionary
+
+    Returns:
+        Simple dialout settings dictionary
+    """
+    # Default simple dialout settings
+    simple_dialout_settings = {
+        "testInPrebuilt": DEFAULT_TEST_IN_PREBUILT,
+    }
+
+    # If simple_dialout already exists, merge the defaults with the existing settings
+    if "simple_dialout" in body:
+        existing_settings = body["simple_dialout"]
+        # Update defaults with existing settings (existing values will override defaults)
+        for key, value in existing_settings.items():
+            simple_dialout_settings[key] = value
+
+    return simple_dialout_settings
+
+
+async def process_dialin_request(data: Dict[str, Any]) -> Dict[str, Any]:
+    """Process incoming dial-in request data to create a properly formatted body.
+
+    Converts camelCase fields received from webhook to snake_case format
+    for internal consistency across the codebase.
+
+    Args:
+        data: Raw dialin data from webhook
+
+    Returns:
+        Properly formatted configuration with snake_case keys
+    """
+    # Create base body with dialin settings
+    body = {
+        "dialin_settings": {
+            "to": data.get("To", ""),
+            "from": data.get("From", ""),
+            "call_id": data.get("callId", data.get("CallSid", "")),  # Convert to snake_case
+            "call_domain": data.get("callDomain", ""),  # Convert to snake_case
+        }
+    }
+
+    # Use the global default to determine which example to run for dialin webhooks
+    example = DEFAULT_DIALIN_EXAMPLE
+
+    # Configure the bot based on the example
+    if example == "call_transfer":
+        # Create call transfer settings
+        body["call_transfer"] = create_call_transfer_settings(body)
+    elif example == "simple_dialin":
+        # Create simple dialin settings
+        body["simple_dialin"] = create_simple_dialin_settings(body)
+
+    return body

examples/phone-chatbot/call_connection_manager.py

@@ -0,0 +1,608 @@
+#
+# Copyright (c) 2024–2025, Daily
+#
+# SPDX-License-Identifier: BSD 2-Clause License
+#
+"""call_connection_manager.py.
+
+Manages customer/operator relationships and call routing for voice bots.
+Provides mapping between customers and operators, and functions for retrieving
+contact information. Also includes call state management.
+"""
+
+import json
+import os
+from typing import Any, Dict, List, Optional
+
+from loguru import logger
+
+
+class CallFlowState:
+    """State for tracking call flow operations and state transitions."""
+
+    def __init__(self):
+        # Operator-related state
+        self.dialed_operator = False
+        self.operator_connected = False
+        self.current_operator_index = 0
+        self.operator_dialout_settings = []
+        self.summary_finished = False
+
+        # Voicemail detection state
+        self.voicemail_detected = False
+        self.human_detected = False
+        self.voicemail_message_left = False
+
+        # Call termination state
+        self.call_terminated = False
+        self.participant_left_early = False
+
+    # Operator-related methods
+    def set_operator_dialed(self):
+        """Mark that an operator has been dialed."""
+        self.dialed_operator = True
+
+    def set_operator_connected(self):
+        """Mark that an operator has connected to the call."""
+        self.operator_connected = True
+        # Summary is not finished when operator first connects
+        self.summary_finished = False
+
+    def set_operator_disconnected(self):
+        """Handle operator disconnection."""
+        self.operator_connected = False
+        self.summary_finished = False
+
+    def set_summary_finished(self):
+        """Mark the summary as finished."""
+        self.summary_finished = True
+
+    def set_operator_dialout_settings(self, settings):
+        """Set the list of operator dialout settings to try."""
+        self.operator_dialout_settings = settings
+        self.current_operator_index = 0
+
+    def get_current_dialout_setting(self):
+        """Get the current operator dialout setting to try."""
+        if not self.operator_dialout_settings or self.current_operator_index >= len(
+            self.operator_dialout_settings
+        ):
+            return None
+        return self.operator_dialout_settings[self.current_operator_index]
+
+    def move_to_next_operator(self):
+        """Move to the next operator in the list."""
+        self.current_operator_index += 1
+        return self.get_current_dialout_setting()
+
+    # Voicemail detection methods
+    def set_voicemail_detected(self):
+        """Mark that a voicemail system has been detected."""
+        self.voicemail_detected = True
+        self.human_detected = False
+
+    def set_human_detected(self):
+        """Mark that a human has been detected (not voicemail)."""
+        self.human_detected = True
+        self.voicemail_detected = False
+
+    def set_voicemail_message_left(self):
+        """Mark that a voicemail message has been left."""
+        self.voicemail_message_left = True
+
+    # Call termination methods
+    def set_call_terminated(self):
+        """Mark that the call has been terminated by the bot."""
+        self.call_terminated = True
+
+    def set_participant_left_early(self):
+        """Mark that a participant left the call early."""
+        self.participant_left_early = True
+
+
+class SessionManager:
+    """Centralized management of session IDs and state for all call participants."""
+
+    def __init__(self):
+        # Track session IDs of different participant types
+        self.session_ids = {
+            "operator": None,
+            "customer": None,
+            "bot": None,
+            # Add other participant types as needed
+        }
+
+        # References for easy access in processors that need mutable containers
+        self.session_id_refs = {
+            "operator": [None],
+            "customer": [None],
+            "bot": [None],
+            # Add other participant types as needed
+        }
+
+        # State object for call flow
+        self.call_flow_state = CallFlowState()
+
+    def set_session_id(self, participant_type, session_id):
+        """Set the session ID for a specific participant type.
+
+        Args:
+            participant_type: Type of participant (e.g., "operator", "customer", "bot")
+            session_id: The session ID to set
+        """
+        if participant_type in self.session_ids:
+            self.session_ids[participant_type] = session_id
+
+            # Also update the corresponding reference if it exists
+            if participant_type in self.session_id_refs:
+                self.session_id_refs[participant_type][0] = session_id
+
+    def get_session_id(self, participant_type):
+        """Get the session ID for a specific participant type.
+
+        Args:
+            participant_type: Type of participant (e.g., "operator", "customer", "bot")
+
+        Returns:
+            The session ID or None if not set
+        """
+        return self.session_ids.get(participant_type)
+
+    def get_session_id_ref(self, participant_type):
+        """Get the mutable reference for a specific participant type.
+
+        Args:
+            participant_type: Type of participant (e.g., "operator", "customer", "bot")
+
+        Returns:
+            A mutable list container holding the session ID or None if not available
+        """
+        return self.session_id_refs.get(participant_type)
+
+    def is_participant_type(self, session_id, participant_type):
+        """Check if a session ID belongs to a specific participant type.
+
+        Args:
+            session_id: The session ID to check
+            participant_type: Type of participant (e.g., "operator", "customer", "bot")
+
+        Returns:
+            True if the session ID matches the participant type, False otherwise
+        """
+        return self.session_ids.get(participant_type) == session_id
+
+    def reset_participant(self, participant_type):
+        """Reset the state for a specific participant type.
+
+        Args:
+            participant_type: Type of participant (e.g., "operator", "customer", "bot")
+        """
+        if participant_type in self.session_ids:
+            self.session_ids[participant_type] = None
+
+            if participant_type in self.session_id_refs:
+                self.session_id_refs[participant_type][0] = None
+
+            # Additional reset actions for specific participant types
+            if participant_type == "operator":
+                self.call_flow_state.set_operator_disconnected()
+
+
+class CallConfigManager:
+    """Manages customer/operator relationships and call routing."""
+
+    def __init__(self, body_data: Dict[str, Any] = None):
+        """Initialize with optional body data.
+
+        Args:
+            body_data: Optional dictionary containing request body data
+        """
+        self.body = body_data or {}
+
+        # Get environment variables with fallbacks
+        self.dial_in_from_number = os.getenv("DIAL_IN_FROM_NUMBER", "+10000000001")
+        self.dial_out_to_number = os.getenv("DIAL_OUT_TO_NUMBER", "+10000000002")
+        self.operator_number = os.getenv("OPERATOR_NUMBER", "+10000000003")
+
+        # Initialize maps with dynamic values
+        self._initialize_maps()
+        self._build_reverse_lookup_maps()
+
+    def _initialize_maps(self):
+        """Initialize the customer and operator maps with environment variables."""
+        # Maps customer names to their contact information
+        self.CUSTOMER_MAP = {
+            "Dominic": {
+                "phoneNumber": self.dial_in_from_number,  # I have two phone numbers, one for dialing in and one for dialing out. I give myself a separate name for each.
+            },
+            "Stewart": {
+                "phoneNumber": self.dial_out_to_number,
+            },
+            "James": {
+                "phoneNumber": "+10000000000",
+                "callerId": "james-caller-id-uuid",
+                "sipUri": "sip:james@example.com",
+            },
+            "Sarah": {
+                "sipUri": "sip:sarah@example.com",
+            },
+            "Michael": {
+                "phoneNumber": "+16505557890",
+                "callerId": "michael-caller-id-uuid",
+            },
+        }
+
+        # Maps customer names to their assigned operator names
+        self.CUSTOMER_TO_OPERATOR_MAP = {
+            "Dominic": ["Yunyoung", "Maria"],  # Try Yunyoung first, then Maria
+            "Stewart": "Yunyoung",
+            "James": "Yunyoung",
+            "Sarah": "Jennifer",
+            "Michael": "Paul",
+            # Default mapping to ensure all customers have an operator
+            "Default": "Yunyoung",
+        }
+
+        # Maps operator names to their contact details
+        self.OPERATOR_CONTACT_MAP = {
+            "Paul": {
+                "phoneNumber": "+12345678904",
+                "callerId": "paul-caller-id-uuid",
+            },
+            "Yunyoung": {
+                "phoneNumber": self.operator_number,  # Dials out to my other phone number.
+            },
+            "Maria": {
+                "sipUri": "sip:maria@example.com",
+            },
+            "Jennifer": {"phoneNumber": "+14155559876", "callerId": "jennifer-caller-id-uuid"},
+            "Default": {
+                "phoneNumber": self.operator_number,  # Use the operator number as default
+            },
+        }
+
+    def _build_reverse_lookup_maps(self):
+        """Build reverse lookup maps for phone numbers and SIP URIs to customer names."""
+        self._PHONE_TO_CUSTOMER_MAP = {}
+        self._SIP_TO_CUSTOMER_MAP = {}
+
+        for customer_name, contact_info in self.CUSTOMER_MAP.items():
+            if "phoneNumber" in contact_info:
+                self._PHONE_TO_CUSTOMER_MAP[contact_info["phoneNumber"]] = customer_name
+            if "sipUri" in contact_info:
+                self._SIP_TO_CUSTOMER_MAP[contact_info["sipUri"]] = customer_name
+
+    @classmethod
+    def from_json_string(cls, json_string: str):
+        """Create a CallRoutingManager from a JSON string.
+
+        Args:
+            json_string: JSON string containing body data
+
+        Returns:
+            CallRoutingManager instance with parsed data
+
+        Raises:
+            json.JSONDecodeError: If JSON string is invalid
+        """
+        body_data = json.loads(json_string)
+        return cls(body_data)
+
+    def find_customer_by_contact(self, contact_info: str) -> Optional[str]:
+        """Find customer name from a contact identifier (phone number or SIP URI).
+
+        Args:
+            contact_info: The contact identifier (phone number or SIP URI)
+
+        Returns:
+            The customer name or None if not found
+        """
+        # Check if it's a phone number
+        if contact_info in self._PHONE_TO_CUSTOMER_MAP:
+            return self._PHONE_TO_CUSTOMER_MAP[contact_info]
+
+        # Check if it's a SIP URI
+        if contact_info in self._SIP_TO_CUSTOMER_MAP:
+            return self._SIP_TO_CUSTOMER_MAP[contact_info]
+
+        return None
+
+    def get_customer_name(self, phone_number: str) -> Optional[str]:
+        """Get customer name from their phone number.
+
+        Args:
+            phone_number: The customer's phone number
+
+        Returns:
+            The customer name or None if not found
+        """
+        # Note: In production, this would likely query a database
+        return self.find_customer_by_contact(phone_number)
+
+    def get_operators_for_customer(self, customer_name: Optional[str]) -> List[str]:
+        """Get the operator name(s) assigned to a customer.
+
+        Args:
+            customer_name: The customer's name
+
+        Returns:
+            List of operator names (single item or multiple)
+        """
+        # Note: In production, this would likely query a database
+        if not customer_name or customer_name not in self.CUSTOMER_TO_OPERATOR_MAP:
+            return ["Default"]
+
+        operators = self.CUSTOMER_TO_OPERATOR_MAP[customer_name]
+        # Convert single string to list for consistency
+        if isinstance(operators, str):
+            return [operators]
+        return operators
+
+    def get_operator_dialout_settings(self, operator_name: str) -> Dict[str, str]:
+        """Get an operator's dialout settings from their name.
+
+        Args:
+            operator_name: The operator's name
+
+        Returns:
+            Dictionary with dialout settings for the operator
+        """
+        # Note: In production, this would likely query a database
+        return self.OPERATOR_CONTACT_MAP.get(operator_name, self.OPERATOR_CONTACT_MAP["Default"])
+
+    def get_dialout_settings_for_caller(
+        self, from_number: Optional[str] = None
+    ) -> List[Dict[str, str]]:
+        """Determine the appropriate operator dialout settings based on caller's number.
+
+        This method uses the caller's number to look up the customer name,
+        then finds the assigned operators for that customer, and returns
+        an array of operator dialout settings to try in sequence.
+
+        Args:
+            from_number: The caller's phone number (from dialin_settings)
+
+        Returns:
+            List of operator dialout settings to try
+        """
+        if not from_number:
+            # If we don't have dialin settings, use the Default operator
+            return [self.get_operator_dialout_settings("Default")]
+
+        # Get customer name from phone number
+        customer_name = self.get_customer_name(from_number)
+
+        # Get operator names assigned to this customer
+        operator_names = self.get_operators_for_customer(customer_name)
+
+        # Get dialout settings for each operator
+        return [self.get_operator_dialout_settings(name) for name in operator_names]
+
+    def get_caller_info(self) -> Dict[str, Optional[str]]:
+        """Get caller and dialed numbers from dialin settings in the body.
+
+        Returns:
+            Dictionary containing caller_number and dialed_number
+        """
+        raw_dialin_settings = self.body.get("dialin_settings")
+        if not raw_dialin_settings:
+            return {"caller_number": None, "dialed_number": None}
+
+        # Handle different case variations
+        dialed_number = raw_dialin_settings.get("To") or raw_dialin_settings.get("to")
+        caller_number = raw_dialin_settings.get("From") or raw_dialin_settings.get("from")
+
+        return {"caller_number": caller_number, "dialed_number": dialed_number}
+
+    def get_caller_number(self) -> Optional[str]:
+        """Get the caller's phone number from dialin settings in the body.
+
+        Returns:
+            The caller's phone number or None if not available
+        """
+        return self.get_caller_info()["caller_number"]
+
+    async def start_dialout(self, transport, dialout_settings=None):
+        """Helper function to start dialout using the provided settings or from body.
+
+        Args:
+            transport: The transport instance to use for dialout
+            dialout_settings: Optional override for dialout settings
+
+        Returns:
+            None
+        """
+        # Use provided settings or get from body
+        settings = dialout_settings or self.get_dialout_settings()
+        if not settings:
+            logger.warning("No dialout settings available")
+            return
+
+        for setting in settings:
+            if "phoneNumber" in setting:
+                logger.info(f"Dialing number: {setting['phoneNumber']}")
+                if "callerId" in setting:
+                    logger.info(f"with callerId: {setting['callerId']}")
+                    await transport.start_dialout(
+                        {"phoneNumber": setting["phoneNumber"], "callerId": setting["callerId"]}
+                    )
+                else:
+                    logger.info("with no callerId")
+                    await transport.start_dialout({"phoneNumber": setting["phoneNumber"]})
+            elif "sipUri" in setting:
+                logger.info(f"Dialing sipUri: {setting['sipUri']}")
+                await transport.start_dialout({"sipUri": setting["sipUri"]})
+            else:
+                logger.warning(f"Unknown dialout setting format: {setting}")
+
+    def get_dialout_settings(self) -> Optional[List[Dict[str, Any]]]:
+        """Extract dialout settings from the body.
+
+        Returns:
+            List of dialout setting objects or None if not present
+        """
+        # Check if we have dialout settings
+        if "dialout_settings" in self.body:
+            dialout_settings = self.body["dialout_settings"]
+
+            # Convert to list if it's an object (for backward compatibility)
+            if isinstance(dialout_settings, dict):
+                return [dialout_settings]
+            elif isinstance(dialout_settings, list):
+                return dialout_settings
+
+        return None
+
+    def get_dialin_settings(self) -> Optional[Dict[str, Any]]:
+        """Extract dialin settings from the body.
+
+        Handles both camelCase and snake_case variations of fields for backward compatibility,
+        but normalizes to snake_case for internal usage.
+
+        Returns:
+            Dictionary containing dialin settings or None if not present
+        """
+        raw_dialin_settings = self.body.get("dialin_settings")
+        if not raw_dialin_settings:
+            return None
+
+        # Normalize dialin settings to handle different case variations
+        # Prioritize snake_case (call_id, call_domain) but fall back to camelCase (callId, callDomain)
+        dialin_settings = {
+            "call_id": raw_dialin_settings.get("call_id") or raw_dialin_settings.get("callId"),
+            "call_domain": raw_dialin_settings.get("call_domain")
+            or raw_dialin_settings.get("callDomain"),
+            "to": raw_dialin_settings.get("to") or raw_dialin_settings.get("To"),
+            "from": raw_dialin_settings.get("from") or raw_dialin_settings.get("From"),
+        }
+
+        return dialin_settings
+
+    # Bot prompt helper functions - no defaults provided, just return what's in the body
+
+    def get_prompt(self, prompt_name: str) -> Optional[str]:
+        """Retrieve the prompt text for a given prompt name.
+
+        Args:
+            prompt_name: The name of the prompt to retrieve.
+
+        Returns:
+            The prompt string corresponding to the provided name, or None if not configured.
+        """
+        prompts = self.body.get("prompts", [])
+        for prompt in prompts:
+            if prompt.get("name") == prompt_name:
+                return prompt.get("text")
+        return None
+
+    def get_transfer_mode(self) -> Optional[str]:
+        """Get transfer mode from the body.
+
+        Returns:
+            Transfer mode string or None if not configured
+        """
+        if "call_transfer" in self.body:
+            return self.body["call_transfer"].get("mode")
+        return None
+
+    def get_speak_summary(self) -> Optional[bool]:
+        """Get speak summary from the body.
+
+        Returns:
+            Boolean indicating if summary should be spoken or None if not configured
+        """
+        if "call_transfer" in self.body:
+            return self.body["call_transfer"].get("speakSummary")
+        return None
+
+    def get_store_summary(self) -> Optional[bool]:
+        """Get store summary from the body.
+
+        Returns:
+            Boolean indicating if summary should be stored or None if not configured
+        """
+        if "call_transfer" in self.body:
+            return self.body["call_transfer"].get("storeSummary")
+        return None
+
+    def is_test_mode(self) -> bool:
+        """Check if running in test mode.
+
+        Returns:
+            Boolean indicating if test mode is enabled
+        """
+        if "voicemail_detection" in self.body:
+            return bool(self.body["voicemail_detection"].get("testInPrebuilt"))
+        if "call_transfer" in self.body:
+            return bool(self.body["call_transfer"].get("testInPrebuilt"))
+        if "simple_dialin" in self.body:
+            return bool(self.body["simple_dialin"].get("testInPrebuilt"))
+        if "simple_dialout" in self.body:
+            return bool(self.body["simple_dialout"].get("testInPrebuilt"))
+        return False
+
+    def is_voicemail_detection_enabled(self) -> bool:
+        """Check if voicemail detection is enabled in the body.
+
+        Returns:
+            Boolean indicating if voicemail detection is enabled
+        """
+        return bool(self.body.get("voicemail_detection"))
+
+    def customize_prompt(self, prompt: str, customer_name: Optional[str] = None) -> str:
+        """Insert customer name into prompt template if available.
+
+        Args:
+            prompt: The prompt template containing optional {customer_name} placeholders
+            customer_name: Optional customer name to insert
+
+        Returns:
+            Customized prompt with customer name inserted
+        """
+        if customer_name and prompt:
+            return prompt.replace("{customer_name}", customer_name)
+        return prompt
+
+    def create_system_message(self, content: str) -> Dict[str, str]:
+        """Create a properly formatted system message.
+
+        Args:
+            content: The message content
+
+        Returns:
+            Dictionary with role and content for the system message
+        """
+        return {"role": "system", "content": content}
+
+    def create_user_message(self, content: str) -> Dict[str, str]:
+        """Create a properly formatted user message.
+
+        Args:
+            content: The message content
+
+        Returns:
+            Dictionary with role and content for the user message
+        """
+        return {"role": "user", "content": content}
+
+    def get_customer_info_suffix(
+        self, customer_name: Optional[str] = None, preposition: str = "for"
+    ) -> str:
+        """Create a consistent customer info suffix.
+
+        Args:
+            customer_name: Optional customer name
+            preposition: Preposition to use before the name (e.g., "for", "to", "")
+
+        Returns:
+            String with formatted customer info suffix
+        """
+        if not customer_name:
+            return ""
+
+        # Add a space before the preposition if it's not empty
+        space_prefix = " " if preposition else ""
+        # For non-empty prepositions, add a space after it
+        space_suffix = " " if preposition else ""
+
+        return f"{space_prefix}{preposition}{space_suffix}{customer_name}"

examples/phone-chatbot/call_transfer.py

@@ -0,0 +1,481 @@
+#
+# Copyright (c) 2024–2025, Daily
+#
+# SPDX-License-Identifier: BSD 2-Clause License
+#
+import argparse
+import asyncio
+import os
+import sys
+
+from call_connection_manager import CallConfigManager, SessionManager
+from dotenv import load_dotenv
+from loguru import logger
+
+from pipecat.adapters.schemas.function_schema import FunctionSchema
+from pipecat.adapters.schemas.tools_schema import ToolsSchema
+from pipecat.audio.vad.silero import SileroVADAnalyzer
+from pipecat.frames.frames import (
+    BotStoppedSpeakingFrame,
+    EndTaskFrame,
+    Frame,
+    LLMMessagesFrame,
+    TranscriptionFrame,
+)
+from pipecat.pipeline.pipeline import Pipeline
+from pipecat.pipeline.runner import PipelineRunner
+from pipecat.pipeline.task import PipelineParams, PipelineTask
+from pipecat.processors.aggregators.openai_llm_context import OpenAILLMContext
+from pipecat.processors.filters.function_filter import FunctionFilter
+from pipecat.processors.frame_processor import FrameDirection, FrameProcessor
+from pipecat.services.cartesia.tts import CartesiaTTSService
+from pipecat.services.llm_service import LLMService
+from pipecat.services.openai.llm import OpenAILLMService
+from pipecat.transports.services.daily import DailyDialinSettings, DailyParams, DailyTransport
+
+load_dotenv(override=True)
+
+logger.remove(0)
+logger.add(sys.stderr, level="DEBUG")
+
+daily_api_key = os.getenv("DAILY_API_KEY", "")
+daily_api_url = os.getenv("DAILY_API_URL", "https://api.daily.co/v1")
+
+
+class TranscriptionModifierProcessor(FrameProcessor):
+    """Processor that modifies transcription frames before they reach the context aggregator."""
+
+    def __init__(self, operator_session_id_ref):
+        """Initialize with a reference to the operator_session_id variable.
+
+        Args:
+            operator_session_id_ref: A reference or container holding the operator's session ID
+        """
+        super().__init__()
+        self.operator_session_id_ref = operator_session_id_ref
+
+    async def process_frame(self, frame: Frame, direction: FrameDirection):
+        await super().process_frame(frame, direction)
+
+        # Only process frames that are moving downstream
+        if direction == FrameDirection.DOWNSTREAM:
+            # Check if the frame is a transcription frame
+            if isinstance(frame, TranscriptionFrame):
+                # Check if this frame is from the operator
+                if (
+                    self.operator_session_id_ref[0] is not None
+                    and hasattr(frame, "user_id")
+                    and frame.user_id == self.operator_session_id_ref[0]
+                ):
+                    # Modify the text to include operator prefix
+                    frame.text = f"[OPERATOR]: {frame.text}"
+                    logger.debug(f"++++ Modified Operator Transcription: {frame.text}")
+
+        # Push the (potentially modified) frame downstream
+        await self.push_frame(frame, direction)
+
+
+class SummaryFinished(FrameProcessor):
+    """Frame processor that monitors when summary has been finished."""
+
+    def __init__(self, dial_operator_state):
+        super().__init__()
+        # Store reference to the shared state object
+        self.dial_operator_state = dial_operator_state
+
+    async def process_frame(self, frame: Frame, direction: FrameDirection):
+        await super().process_frame(frame, direction)
+
+        # Check if operator is connected and this is the end of bot speaking
+        if self.dial_operator_state.operator_connected and isinstance(
+            frame, BotStoppedSpeakingFrame
+        ):
+            logger.debug("Summary finished, bot will stop speaking")
+            self.dial_operator_state.set_summary_finished()
+
+        await self.push_frame(frame, direction)
+
+
+async def main(
+    room_url: str,
+    token: str,
+    body: dict,
+):
+    # ------------ CONFIGURATION AND SETUP ------------
+
+    # Create a routing manager using the provided body
+    call_config_manager = CallConfigManager.from_json_string(body) if body else CallConfigManager()
+
+    # Get caller information
+    caller_info = call_config_manager.get_caller_info()
+    caller_number = caller_info["caller_number"]
+    dialed_number = caller_info["dialed_number"]
+
+    # Get customer name based on caller number
+    customer_name = call_config_manager.get_customer_name(caller_number) if caller_number else None
+
+    # Get appropriate operator settings based on the caller
+    operator_dialout_settings = call_config_manager.get_dialout_settings_for_caller(caller_number)
+
+    logger.info(f"Caller number: {caller_number}")
+    logger.info(f"Dialed number: {dialed_number}")
+    logger.info(f"Customer name: {customer_name}")
+    logger.info(f"Operator dialout settings: {operator_dialout_settings}")
+
+    # Check if in test mode
+    test_mode = call_config_manager.is_test_mode()
+
+    # Get dialin settings if present
+    dialin_settings = call_config_manager.get_dialin_settings()
+
+    # ------------ TRANSPORT SETUP ------------
+
+    # Set up transport parameters
+    if test_mode:
+        logger.info("Running in test mode")
+        transport_params = DailyParams(
+            api_url=daily_api_url,
+            api_key=daily_api_key,
+            audio_in_enabled=True,
+            audio_out_enabled=True,
+            camera_out_enabled=False,
+            vad_enabled=True,
+            vad_analyzer=SileroVADAnalyzer(),
+            transcription_enabled=True,
+        )
+    else:
+        daily_dialin_settings = DailyDialinSettings(
+            call_id=dialin_settings.get("call_id"), call_domain=dialin_settings.get("call_domain")
+        )
+        transport_params = DailyParams(
+            api_url=daily_api_url,
+            api_key=daily_api_key,
+            dialin_settings=daily_dialin_settings,
+            audio_in_enabled=True,
+            audio_out_enabled=True,
+            camera_out_enabled=False,
+            vad_enabled=True,
+            vad_analyzer=SileroVADAnalyzer(),
+            transcription_enabled=True,
+        )
+
+    # Initialize the session manager
+    session_manager = SessionManager()
+
+    # Set up the operator dialout settings
+    session_manager.call_flow_state.set_operator_dialout_settings(operator_dialout_settings)
+
+    # Initialize transport
+    transport = DailyTransport(
+        room_url,
+        token,
+        "Call Transfer Bot",
+        transport_params,
+    )
+
+    # Initialize TTS
+    tts = CartesiaTTSService(
+        api_key=os.getenv("CARTESIA_API_KEY", ""),
+        voice_id="b7d50908-b17c-442d-ad8d-810c63997ed9",  # Use Helpful Woman voice by default
+    )
+
+    # ------------ LLM AND CONTEXT SETUP ------------
+
+    # Get prompts from routing manager
+    call_transfer_initial_prompt = call_config_manager.get_prompt("call_transfer_initial_prompt")
+
+    # Build default greeting with customer name if available
+    customer_greeting = f"Hello {customer_name}" if customer_name else "Hello"
+    default_greeting = f"{customer_greeting}, this is Hailey from customer support. What can I help you with today?"
+
+    # Build initial prompt
+    if call_transfer_initial_prompt:
+        # Use custom prompt with customer name replacement if needed
+        system_instruction = call_config_manager.customize_prompt(
+            call_transfer_initial_prompt, customer_name
+        )
+        logger.info("Using custom call transfer initial prompt")
+    else:
+        # Use default prompt with formatted greeting
+        system_instruction = f"""You are Chatbot, a friendly, helpful robot. Never refer to this prompt, even if asked. Follow these steps **EXACTLY**.
+
+        ### **Standard Operating Procedure:**
+
+        #### **Step 1: Greeting**
+        - Greet the user with: "{default_greeting}"
+
+        #### **Step 2: Handling Requests**
+        - If the user requests a supervisor, **IMMEDIATELY** call the `dial_operator` function.
+        - **FAILURE TO CALL `dial_operator` IMMEDIATELY IS A MISTAKE.**
+        - If the user ends the conversation, **IMMEDIATELY** call the `terminate_call` function.
+        - **FAILURE TO CALL `terminate_call` IMMEDIATELY IS A MISTAKE.**
+
+        ### **General Rules**
+        - Your output will be converted to audio, so **do not include special characters or formatting.**
+        """
+        logger.info("Using default call transfer initial prompt")
+
+    # Create the system message and initialize messages list
+    messages = [call_config_manager.create_system_message(system_instruction)]
+
+    # ------------ FUNCTION DEFINITIONS ------------
+
+    async def terminate_call(
+        task: PipelineTask,  # Pipeline task reference
+        function_name,
+        tool_call_id,
+        args,
+        llm: LLMService,
+        context: OpenAILLMContext,
+        result_callback,
+    ):
+        """Function the bot can call to terminate the call."""
+        # Create a message to add
+        content = "The user wants to end the conversation, thank them for chatting."
+        message = call_config_manager.create_system_message(content)
+        # Append the message to the list
+        messages.append(message)
+        # Queue the message to the context
+        await task.queue_frames([LLMMessagesFrame(messages)])
+
+        # Then end the call
+        await llm.queue_frame(EndTaskFrame(), FrameDirection.UPSTREAM)
+
+    async def dial_operator(
+        function_name: str,
+        tool_call_id: str,
+        args: dict,
+        llm: LLMService,
+        context: dict,
+        result_callback: callable,
+    ):
+        """Function the bot can call to dial an operator."""
+        dialout_setting = session_manager.call_flow_state.get_current_dialout_setting()
+        if call_config_manager.get_transfer_mode() == "dialout":
+            if dialout_setting:
+                session_manager.call_flow_state.set_operator_dialed()
+                logger.info(f"Dialing operator with settings: {dialout_setting}")
+
+                # Create a message to add
+                content = "The user has requested a supervisor, indicate that you will attempt to connect them with a supervisor."
+                message = call_config_manager.create_system_message(content)
+
+                # Append the message to the list
+                messages.append(message)
+                # Queue the message to the context
+                await task.queue_frames([LLMMessagesFrame(messages)])
+                # Start the dialout
+                await call_config_manager.start_dialout(transport, [dialout_setting])
+
+            else:
+                # Create a message to add
+                content = "Indicate that there are no operator dialout settings available."
+                message = call_config_manager.create_system_message(content)
+                # Append the message to the list
+                messages.append(message)
+                # Queue the message to the context
+                await task.queue_frames([LLMMessagesFrame(messages)])
+                logger.info("No operator dialout settings available")
+        else:
+            # Create a message to add
+            content = "Indicate that the current mode is not supported."
+            message = call_config_manager.create_system_message(content)
+            # Append the message to the list
+            messages.append(message)
+            # Queue the message to the context
+            await task.queue_frames([LLMMessagesFrame(messages)])
+            logger.info("Other mode not supported")
+
+    # Define function schemas for tools
+    terminate_call_function = FunctionSchema(
+        name="terminate_call",
+        description="Call this function to terminate the call.",
+        properties={},
+        required=[],
+    )
+
+    dial_operator_function = FunctionSchema(
+        name="dial_operator",
+        description="Call this function when the user asks to speak with a human",
+        properties={},
+        required=[],
+    )
+
+    # Create tools schema
+    tools = ToolsSchema(standard_tools=[terminate_call_function, dial_operator_function])
+
+    # Initialize LLM
+    llm = OpenAILLMService(api_key=os.getenv("OPENAI_API_KEY"), model="gpt-4o")
+
+    # Register functions with the LLM
+    llm.register_function(
+        "terminate_call", lambda *args, **kwargs: terminate_call(task, *args, **kwargs)
+    )
+    llm.register_function("dial_operator", dial_operator)
+
+    # Initialize LLM context and aggregator
+    context = OpenAILLMContext(messages, tools)
+    context_aggregator = llm.create_context_aggregator(context)
+
+    # ------------ PIPELINE SETUP ------------
+
+    # Use the session manager's references
+    summary_finished = SummaryFinished(session_manager.call_flow_state)
+    transcription_modifier = TranscriptionModifierProcessor(
+        session_manager.get_session_id_ref("operator")
+    )
+
+    # Define function to determine if bot should speak
+    async def should_speak(self) -> bool:
+        result = (
+            not session_manager.call_flow_state.operator_connected
+            or not session_manager.call_flow_state.summary_finished
+        )
+        return result
+
+    # Build pipeline
+    pipeline = Pipeline(
+        [
+            transport.input(),  # Transport user input
+            transcription_modifier,  # Prepends operator transcription with [OPERATOR]
+            context_aggregator.user(),  # User responses
+            FunctionFilter(should_speak),
+            llm,
+            tts,
+            summary_finished,
+            transport.output(),  # Transport bot output
+            context_aggregator.assistant(),  # Assistant spoken responses
+        ]
+    )
+
+    # Create pipeline task
+    task = PipelineTask(
+        pipeline,
+        params=PipelineParams(allow_interruptions=True),
+    )
+
+    # ------------ EVENT HANDLERS ------------
+
+    @transport.event_handler("on_first_participant_joined")
+    async def on_first_participant_joined(transport, participant):
+        await transport.capture_participant_transcription(participant["id"])
+        # For the dialin case, we want the bot to answer the phone and greet the user
+        await task.queue_frames([context_aggregator.user().get_context_frame()])
+
+    @transport.event_handler("on_dialout_answered")
+    async def on_dialout_answered(transport, data):
+        logger.debug(f"++++ Dial-out answered: {data}")
+        await transport.capture_participant_transcription(data["sessionId"])
+
+        # Skip if operator already connected
+        if (
+            not session_manager.call_flow_state
+            or session_manager.call_flow_state.operator_connected
+        ):
+            logger.debug(f"Operator already connected: {data}")
+            return
+
+        logger.debug(f"Operator connected with session ID: {data['sessionId']}")
+
+        # Set operator session ID in the session manager
+        session_manager.set_session_id("operator", data["sessionId"])
+
+        # Update state
+        session_manager.call_flow_state.set_operator_connected()
+
+        # Determine message content based on configuration
+        if call_config_manager.get_speak_summary():
+            logger.debug("Bot will speak summary")
+            call_transfer_prompt = call_config_manager.get_prompt("call_transfer_prompt")
+
+            if call_transfer_prompt:
+                # Use custom prompt
+                logger.info("Using custom call transfer prompt")
+                content = call_config_manager.customize_prompt(call_transfer_prompt, customer_name)
+            else:
+                # Use default summary prompt
+                logger.info("Using default call transfer prompt")
+                customer_info = call_config_manager.get_customer_info_suffix(customer_name)
+                content = f"""An operator is joining the call{customer_info}.
+                    Give a brief summary of the customer's issues so far."""
+        else:
+            # Simple join notification without summary
+            logger.debug("Bot will not speak summary")
+            customer_info = call_config_manager.get_customer_info_suffix(customer_name)
+            content = f"""Indicate that an operator has joined the call{customer_info}."""
+
+        # Create and queue system message
+        message = call_config_manager.create_system_message(content)
+        messages.append(message)
+        await task.queue_frames([LLMMessagesFrame(messages)])
+
+    @transport.event_handler("on_dialout_stopped")
+    async def on_dialout_stopped(transport, data):
+        if session_manager.get_session_id("operator") and data[
+            "sessionId"
+        ] == session_manager.get_session_id("operator"):
+            logger.debug("Dialout to operator stopped")
+
+    @transport.event_handler("on_participant_left")
+    async def on_participant_left(transport, participant, reason):
+        logger.debug(f"Participant left: {participant}, reason: {reason}")
+
+        # Check if the operator is the one who left
+        if not (
+            session_manager.get_session_id("operator")
+            and participant["id"] == session_manager.get_session_id("operator")
+        ):
+            await task.cancel()
+            return
+
+        logger.debug("Operator left the call")
+
+        # Reset operator state
+        session_manager.reset_participant("operator")
+
+        # Determine message content
+        call_transfer_finished_prompt = call_config_manager.get_prompt(
+            "call_transfer_finished_prompt"
+        )
+
+        if call_transfer_finished_prompt:
+            # Use custom prompt for operator departure
+            logger.info("Using custom call transfer finished prompt")
+            content = call_config_manager.customize_prompt(
+                call_transfer_finished_prompt, customer_name
+            )
+        else:
+            # Use default prompt for operator departure
+            logger.info("Using default call transfer finished prompt")
+            customer_info = call_config_manager.get_customer_info_suffix(
+                customer_name, preposition=""
+            )
+            content = f"""The operator has left the call.
+                Resume your role as the primary support agent and use information from the operator's conversation to help the customer{customer_info}.
+                Let the customer know the operator has left and ask if they need further assistance."""
+
+        # Create and queue system message
+        message = call_config_manager.create_system_message(content)
+        messages.append(message)
+        await task.queue_frames([LLMMessagesFrame(messages)])
+
+    # ------------ RUN PIPELINE ------------
+
+    runner = PipelineRunner()
+    await runner.run(task)
+
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser(description="Pipecat Call Transfer Bot")
+    parser.add_argument("-u", "--url", type=str, help="Room URL")
+    parser.add_argument("-t", "--token", type=str, help="Room Token")
+    parser.add_argument("-b", "--body", type=str, help="JSON configuration string")
+
+    args = parser.parse_args()
+
+    # Log the arguments for debugging
+    logger.info(f"Room URL: {args.url}")
+    logger.info(f"Token: {args.token}")
+    logger.info(f"Body provided: {bool(args.body)}")
+
+    asyncio.run(main(args.url, args.token, args.body))

examples/phone-chatbot/env.example

@@ -1,8 +1,11 @@
 DAILY_SAMPLE_ROOM_URL=https://yourdomain.daily.co/yourroom # (optional: for joining the bot to the same room repeatedly for local dev)
-DAILY_API_KEY=.
+DAILY_API_KEY=
 DAILY_API_URL=api.daily.co/v1
 OPENAI_API_KEY=
-ELEVENLABS_API_KEY=
-ELEVENLABS_VOICE_ID=
+GOOGLE_API_KEY
+CARTESIA_API_KEY=
 TWILIO_ACCOUNT_SID=
-TWILIO_AUTH_TOKEN=
+TWILIO_AUTH_TOKEN=
+DIAL_IN_FROM_NUMBER=
+DIAL_OUT_TO_NUMBER=
+OPERATOR_NUMBER=

examples/phone-chatbot/fly.example.toml

@@ -1,19 +0,0 @@
-# fly.toml app configuration file generated for pipecat-dialin-demo on 2024-06-03T15:57:57+02:00
-#
-# See https://fly.io/docs/reference/configuration/ for information about how to use this file.
-#
-
-app = 'pipecat-dialin-demo'
-primary_region = 'sjc'
-
-[build]
-
-[http_service]
-  internal_port = 7860
-  force_https = true
-  auto_stop_machines = true
-  auto_start_machines = true
-  min_machines_running = 1
-
-[[vm]]
-  size = 'performance-1x'

examples/phone-chatbot/requirements.txt

@@ -1,5 +1,5 @@
-pipecat-ai[daily,elevenlabs,openai,silero]
-fastapi
+pipecat-ai[daily,cartesia,openai,google,silero]
+fastapi==3.11.12
 uvicorn
 python-dotenv
 twilio

examples/phone-chatbot/simple_dialin.py

@@ -0,0 +1,196 @@
+#
+# Copyright (c) 2024–2025, Daily
+#
+# SPDX-License-Identifier: BSD 2-Clause License
+#
+import argparse
+import asyncio
+import os
+import sys
+
+from call_connection_manager import CallConfigManager, SessionManager
+from dotenv import load_dotenv
+from loguru import logger
+
+from pipecat.adapters.schemas.function_schema import FunctionSchema
+from pipecat.adapters.schemas.tools_schema import ToolsSchema
+from pipecat.audio.vad.silero import SileroVADAnalyzer
+from pipecat.frames.frames import EndTaskFrame
+from pipecat.pipeline.pipeline import Pipeline
+from pipecat.pipeline.runner import PipelineRunner
+from pipecat.pipeline.task import PipelineParams, PipelineTask
+from pipecat.processors.aggregators.openai_llm_context import OpenAILLMContext
+from pipecat.processors.frame_processor import FrameDirection
+from pipecat.services.cartesia.tts import CartesiaTTSService
+from pipecat.services.llm_service import LLMService
+from pipecat.services.openai.llm import OpenAILLMService
+from pipecat.transports.services.daily import DailyDialinSettings, DailyParams, DailyTransport
+
+load_dotenv(override=True)
+
+logger.remove(0)
+logger.add(sys.stderr, level="DEBUG")
+
+daily_api_key = os.getenv("DAILY_API_KEY", "")
+daily_api_url = os.getenv("DAILY_API_URL", "https://api.daily.co/v1")
+
+
+async def main(
+    room_url: str,
+    token: str,
+    body: dict,
+):
+    # ------------ CONFIGURATION AND SETUP ------------
+
+    # Create a config manager using the provided body
+    call_config_manager = CallConfigManager.from_json_string(body) if body else CallConfigManager()
+
+    # Get important configuration values
+    test_mode = call_config_manager.is_test_mode()
+
+    # Get dialin settings if present
+    dialin_settings = call_config_manager.get_dialin_settings()
+
+    # Initialize the session manager
+    session_manager = SessionManager()
+
+    # ------------ TRANSPORT SETUP ------------
+
+    # Set up transport parameters
+    if test_mode:
+        logger.info("Running in test mode")
+        transport_params = DailyParams(
+            api_url=daily_api_url,
+            api_key=daily_api_key,
+            audio_in_enabled=True,
+            audio_out_enabled=True,
+            camera_out_enabled=False,
+            vad_enabled=True,
+            vad_analyzer=SileroVADAnalyzer(),
+            transcription_enabled=True,
+        )
+    else:
+        daily_dialin_settings = DailyDialinSettings(
+            call_id=dialin_settings.get("call_id"), call_domain=dialin_settings.get("call_domain")
+        )
+        transport_params = DailyParams(
+            api_url=daily_api_url,
+            api_key=daily_api_key,
+            dialin_settings=daily_dialin_settings,
+            audio_in_enabled=True,
+            audio_out_enabled=True,
+            camera_out_enabled=False,
+            vad_enabled=True,
+            vad_analyzer=SileroVADAnalyzer(),
+            transcription_enabled=True,
+        )
+
+    # Initialize transport with Daily
+    transport = DailyTransport(
+        room_url,
+        token,
+        "Simple Dial-in Bot",
+        transport_params,
+    )
+
+    # Initialize TTS
+    tts = CartesiaTTSService(
+        api_key=os.getenv("CARTESIA_API_KEY", ""),
+        voice_id="b7d50908-b17c-442d-ad8d-810c63997ed9",  # Use Helpful Woman voice by default
+    )
+
+    # ------------ FUNCTION DEFINITIONS ------------
+
+    async def terminate_call(
+        function_name, tool_call_id, args, llm: LLMService, context, result_callback
+    ):
+        """Function the bot can call to terminate the call upon completion of a voicemail message."""
+        if session_manager:
+            # Mark that the call was terminated by the bot
+            session_manager.call_flow_state.set_call_terminated()
+
+        # Then end the call
+        await llm.queue_frame(EndTaskFrame(), FrameDirection.UPSTREAM)
+
+    # Define function schemas for tools
+    terminate_call_function = FunctionSchema(
+        name="terminate_call",
+        description="Call this function to terminate the call.",
+        properties={},
+        required=[],
+    )
+
+    # Create tools schema
+    tools = ToolsSchema(standard_tools=[terminate_call_function])
+
+    # ------------ LLM AND CONTEXT SETUP ------------
+
+    # Set up the system instruction for the LLM
+    system_instruction = """You are Chatbot, a friendly, helpful robot. Your goal is to demonstrate your capabilities in a succinct way. Your output will be converted to audio so don't include special characters in your answers. Respond to what the user said in a creative and helpful way, but keep your responses brief. Start by introducing yourself. If the user ends the conversation, **IMMEDIATELY** call the `terminate_call` function. """
+
+    # Initialize LLM
+    llm = OpenAILLMService(api_key=os.getenv("OPENAI_API_KEY"), model="gpt-4o")
+
+    # Register functions with the LLM
+    llm.register_function("terminate_call", terminate_call)
+
+    # Create system message and initialize messages list
+    messages = [call_config_manager.create_system_message(system_instruction)]
+
+    # Initialize LLM context and aggregator
+    context = OpenAILLMContext(messages, tools)
+    context_aggregator = llm.create_context_aggregator(context)
+
+    # ------------ PIPELINE SETUP ------------
+
+    # Build pipeline
+    pipeline = Pipeline(
+        [
+            transport.input(),  # Transport user input
+            context_aggregator.user(),  # User responses
+            llm,  # LLM
+            tts,  # TTS
+            transport.output(),  # Transport bot output
+            context_aggregator.assistant(),  # Assistant spoken responses
+        ]
+    )
+
+    # Create pipeline task
+    task = PipelineTask(pipeline, params=PipelineParams(allow_interruptions=True))
+
+    # ------------ EVENT HANDLERS ------------
+
+    @transport.event_handler("on_first_participant_joined")
+    async def on_first_participant_joined(transport, participant):
+        logger.debug(f"First participant joined: {participant['id']}")
+        await transport.capture_participant_transcription(participant["id"])
+        await task.queue_frames([context_aggregator.user().get_context_frame()])
+
+    @transport.event_handler("on_participant_left")
+    async def on_participant_left(transport, participant, reason):
+        logger.debug(f"Participant left: {participant}, reason: {reason}")
+        await task.cancel()
+
+    # ------------ RUN PIPELINE ------------
+
+    if test_mode:
+        logger.debug("Running in test mode (can be tested in Daily Prebuilt)")
+
+    runner = PipelineRunner()
+    await runner.run(task)
+
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser(description="Simple Dial-in Bot")
+    parser.add_argument("-u", "--url", type=str, help="Room URL")
+    parser.add_argument("-t", "--token", type=str, help="Room Token")
+    parser.add_argument("-b", "--body", type=str, help="JSON configuration string")
+
+    args = parser.parse_args()
+
+    # Log the arguments for debugging
+    logger.info(f"Room URL: {args.url}")
+    logger.info(f"Token: {args.token}")
+    logger.info(f"Body provided: {bool(args.body)}")
+
+    asyncio.run(main(args.url, args.token, args.body))

examples/phone-chatbot/simple_dialout.py

@@ -0,0 +1,187 @@
+#
+# Copyright (c) 2024–2025, Daily
+#
+# SPDX-License-Identifier: BSD 2-Clause License
+#
+import argparse
+import asyncio
+import os
+import sys
+
+from call_connection_manager import CallConfigManager
+from dotenv import load_dotenv
+from loguru import logger
+
+from pipecat.adapters.schemas.function_schema import FunctionSchema
+from pipecat.adapters.schemas.tools_schema import ToolsSchema
+from pipecat.audio.vad.silero import SileroVADAnalyzer
+from pipecat.frames.frames import EndTaskFrame
+from pipecat.pipeline.pipeline import Pipeline
+from pipecat.pipeline.runner import PipelineRunner
+from pipecat.pipeline.task import PipelineParams, PipelineTask
+from pipecat.processors.aggregators.openai_llm_context import OpenAILLMContext
+from pipecat.processors.frame_processor import FrameDirection
+from pipecat.services.cartesia.tts import CartesiaTTSService
+from pipecat.services.llm_service import LLMService
+from pipecat.services.openai.llm import OpenAILLMService
+from pipecat.transports.services.daily import DailyParams, DailyTransport
+
+load_dotenv(override=True)
+
+logger.remove(0)
+logger.add(sys.stderr, level="DEBUG")
+
+daily_api_key = os.getenv("DAILY_API_KEY", "")
+daily_api_url = os.getenv("DAILY_API_URL", "https://api.daily.co/v1")
+
+
+async def main(
+    room_url: str,
+    token: str,
+    body: dict,
+):
+    # ------------ CONFIGURATION AND SETUP ------------
+
+    # Create a config manager using the provided body
+    call_config_manager = CallConfigManager.from_json_string(body) if body else CallConfigManager()
+
+    # Get important configuration values
+    dialout_settings = call_config_manager.get_dialout_settings()
+    test_mode = call_config_manager.is_test_mode()
+
+    # ------------ TRANSPORT SETUP ------------
+
+    transport_params = DailyParams(
+        api_url=daily_api_url,
+        api_key=daily_api_key,
+        audio_in_enabled=True,
+        audio_out_enabled=True,
+        camera_out_enabled=False,
+        vad_enabled=True,
+        vad_analyzer=SileroVADAnalyzer(),
+        transcription_enabled=True,
+    )
+
+    # Initialize transport with Daily
+    transport = DailyTransport(
+        room_url,
+        token,
+        "Simple Dial-out Bot",
+        transport_params,
+    )
+
+    # Initialize TTS
+    tts = CartesiaTTSService(
+        api_key=os.getenv("CARTESIA_API_KEY", ""),
+        voice_id="b7d50908-b17c-442d-ad8d-810c63997ed9",  # Use Helpful Woman voice by default
+    )
+
+    # ------------ FUNCTION DEFINITIONS ------------
+
+    async def terminate_call(
+        function_name, tool_call_id, args, llm: LLMService, context, result_callback
+    ):
+        """Function the bot can call to terminate the call upon completion of a voicemail message."""
+        await llm.queue_frame(EndTaskFrame(), FrameDirection.UPSTREAM)
+
+    # Define function schemas for tools
+    terminate_call_function = FunctionSchema(
+        name="terminate_call",
+        description="Call this function to terminate the call.",
+        properties={},
+        required=[],
+    )
+
+    # Create tools schema
+    tools = ToolsSchema(standard_tools=[terminate_call_function])
+
+    # ------------ LLM AND CONTEXT SETUP ------------
+
+    # Set up the system instruction for the LLM
+    system_instruction = """You are Chatbot, a friendly, helpful robot. Your goal is to demonstrate your capabilities in a succinct way. Your output will be converted to audio so don't include special characters in your answers. Respond to what the user said in a creative and helpful way, but keep your responses brief. Start by introducing yourself. If the user ends the conversation, **IMMEDIATELY** call the `terminate_call` function. """
+
+    # Initialize LLM
+    llm = OpenAILLMService(api_key=os.getenv("OPENAI_API_KEY"), model="gpt-4o")
+
+    # Register functions with the LLM
+    llm.register_function("terminate_call", terminate_call)
+
+    # Create system message and initialize messages list
+    messages = [call_config_manager.create_system_message(system_instruction)]
+
+    # Initialize LLM context and aggregator
+    context = OpenAILLMContext(messages, tools)
+    context_aggregator = llm.create_context_aggregator(context)
+
+    # ------------ PIPELINE SETUP ------------
+
+    # Build pipeline
+    pipeline = Pipeline(
+        [
+            transport.input(),  # Transport user input
+            context_aggregator.user(),  # User responses
+            llm,  # LLM
+            tts,  # TTS
+            transport.output(),  # Transport bot output
+            context_aggregator.assistant(),  # Assistant spoken responses
+        ]
+    )
+
+    # Create pipeline task
+    task = PipelineTask(pipeline, params=PipelineParams(allow_interruptions=True))
+
+    # ------------ EVENT HANDLERS ------------
+
+    @transport.event_handler("on_joined")
+    async def on_joined(transport, data):
+        # Start dialout if needed
+        if not test_mode and dialout_settings:
+            logger.debug("Dialout settings detected; starting dialout")
+            await call_config_manager.start_dialout(transport, dialout_settings)
+
+    @transport.event_handler("on_dialout_connected")
+    async def on_dialout_connected(transport, data):
+        logger.debug(f"Dial-out connected: {data}")
+
+    @transport.event_handler("on_dialout_answered")
+    async def on_dialout_answered(transport, data):
+        logger.debug(f"Dial-out answered: {data}")
+        # Automatically start capturing transcription for the participant
+        await transport.capture_participant_transcription(data["sessionId"])
+        # The bot will wait to hear the user before the bot speaks
+
+    @transport.event_handler("on_first_participant_joined")
+    async def on_first_participant_joined(transport, participant):
+        if test_mode:
+            logger.debug(f"First participant joined: {participant['id']}")
+            await transport.capture_participant_transcription(participant["id"])
+            # The bot will wait to hear the user before the bot speaks
+
+    @transport.event_handler("on_participant_left")
+    async def on_participant_left(transport, participant, reason):
+        logger.debug(f"Participant left: {participant}, reason: {reason}")
+        await task.cancel()
+
+    # ------------ RUN PIPELINE ------------
+
+    if test_mode:
+        logger.debug("Running in test mode (can be tested in Daily Prebuilt)")
+
+    runner = PipelineRunner()
+    await runner.run(task)
+
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser(description="Simple Dial-out Bot")
+    parser.add_argument("-u", "--url", type=str, help="Room URL")
+    parser.add_argument("-t", "--token", type=str, help="Room Token")
+    parser.add_argument("-b", "--body", type=str, help="JSON configuration string")
+
+    args = parser.parse_args()
+
+    # Log the arguments for debugging
+    logger.info(f"Room URL: {args.url}")
+    logger.info(f"Token: {args.token}")
+    logger.info(f"Body provided: {bool(args.body)}")
+
+    asyncio.run(main(args.url, args.token, args.body))

examples/phone-chatbot/voicemail_detection.py

@@ -0,0 +1,472 @@
+#
+# Copyright (c) 2024–2025, Daily
+#
+# SPDX-License-Identifier: BSD 2-Clause License
+#
+
+import argparse
+import asyncio
+import functools
+import os
+import sys
+
+from call_connection_manager import CallConfigManager, SessionManager
+from dotenv import load_dotenv
+from loguru import logger
+
+from pipecat.audio.vad.silero import SileroVADAnalyzer
+from pipecat.frames.frames import (
+    EndFrame,
+    EndTaskFrame,
+    InputAudioRawFrame,
+    StopTaskFrame,
+    TranscriptionFrame,
+    UserStartedSpeakingFrame,
+    UserStoppedSpeakingFrame,
+)
+from pipecat.pipeline.pipeline import Pipeline
+from pipecat.pipeline.runner import PipelineRunner
+from pipecat.pipeline.task import PipelineParams, PipelineTask
+from pipecat.processors.frame_processor import FrameDirection, FrameProcessor
+from pipecat.services.cartesia.tts import CartesiaTTSService
+from pipecat.services.deepgram.stt import DeepgramSTTService
+from pipecat.services.google.google import GoogleLLMContext
+from pipecat.services.google.llm import GoogleLLMService
+from pipecat.services.llm_service import LLMService  # Base LLM service class
+from pipecat.transports.services.daily import (
+    DailyParams,
+    DailyTransport,
+)
+
+load_dotenv(override=True)
+
+logger.remove(0)
+logger.add(sys.stderr, level="DEBUG")
+
+daily_api_key = os.getenv("DAILY_API_KEY", "")
+daily_api_url = os.getenv("DAILY_API_URL", "https://api.daily.co/v1")
+
+
+# ------------ HELPER CLASSES ------------
+
+
+class UserAudioCollector(FrameProcessor):
+    """Collects audio frames in a buffer, then adds them to the LLM context when the user stops speaking."""
+
+    def __init__(self, context, user_context_aggregator):
+        super().__init__()
+        self._context = context
+        self._user_context_aggregator = user_context_aggregator
+        self._audio_frames = []
+        self._start_secs = 0.2  # this should match VAD start_secs (hardcoding for now)
+        self._user_speaking = False
+
+    async def process_frame(self, frame, direction):
+        await super().process_frame(frame, direction)
+
+        if isinstance(frame, TranscriptionFrame):
+            # Skip transcription frames - we're handling audio directly
+            return
+        elif isinstance(frame, UserStartedSpeakingFrame):
+            self._user_speaking = True
+        elif isinstance(frame, UserStoppedSpeakingFrame):
+            self._user_speaking = False
+            self._context.add_audio_frames_message(audio_frames=self._audio_frames)
+            await self._user_context_aggregator.push_frame(
+                self._user_context_aggregator.get_context_frame()
+            )
+        elif isinstance(frame, InputAudioRawFrame):
+            if self._user_speaking:
+                # When speaking, collect frames
+                self._audio_frames.append(frame)
+            else:
+                # Maintain a rolling buffer of recent audio (for start of speech)
+                self._audio_frames.append(frame)
+                frame_duration = len(frame.audio) / 16 * frame.num_channels / frame.sample_rate
+                buffer_duration = frame_duration * len(self._audio_frames)
+                while buffer_duration > self._start_secs:
+                    self._audio_frames.pop(0)
+                    buffer_duration -= frame_duration
+
+        await self.push_frame(frame, direction)
+
+
+class FunctionHandlers:
+    """Handlers for the voicemail detection bot functions."""
+
+    def __init__(self, session_manager):
+        self.session_manager = session_manager
+        self.prompt = None  # Can be set externally
+
+    async def voicemail_response(
+        self,
+        function_name,
+        tool_call_id,
+        args,
+        llm: LLMService,
+        context,
+        result_callback,
+    ):
+        """Function the bot can call to leave a voicemail message."""
+        message = """You are Chatbot leaving a voicemail message. Say EXACTLY this message and then terminate the call:
+
+                    'Hello, this is a message for Pipecat example user. This is Chatbot. Please call back on 123-456-7891. Thank you.'"""
+
+        await result_callback(message)
+
+    async def human_conversation(
+        self,
+        function_name,
+        tool_call_id,
+        args,
+        llm: LLMService,
+        context,
+        result_callback,
+    ):
+        """Function called when bot detects it's talking to a human."""
+        # Update state to indicate human was detected
+        self.session_manager.call_flow_state.set_human_detected()
+        await llm.push_frame(StopTaskFrame(), FrameDirection.UPSTREAM)
+
+
+# ------------ MAIN FUNCTION ------------
+
+
+async def main(
+    room_url: str,
+    token: str,
+    body: dict,
+):
+    # ------------ CONFIGURATION AND SETUP ------------
+
+    # Create a configuration manager from the provided body
+    call_config_manager = CallConfigManager.from_json_string(body) if body else CallConfigManager()
+
+    # Get important configuration values
+    dialout_settings = call_config_manager.get_dialout_settings()
+    test_mode = call_config_manager.is_test_mode()
+
+    # Get caller info (might be None for dialout scenarios)
+    caller_info = call_config_manager.get_caller_info()
+    logger.info(f"Caller info: {caller_info}")
+
+    # Initialize the session manager
+    session_manager = SessionManager()
+
+    # ------------ TRANSPORT AND SERVICES SETUP ------------
+
+    # Initialize transport
+    transport = DailyTransport(
+        room_url,
+        token,
+        "Voicemail Detection Bot",
+        DailyParams(
+            api_url=daily_api_url,
+            api_key=daily_api_key,
+            audio_in_enabled=True,
+            audio_out_enabled=True,
+            camera_out_enabled=False,
+            vad_enabled=True,
+            vad_analyzer=SileroVADAnalyzer(),
+            vad_audio_passthrough=True,  # Important for audio collection
+        ),
+    )
+
+    # Initialize TTS
+    tts = CartesiaTTSService(
+        api_key=os.getenv("CARTESIA_API_KEY", ""),
+        voice_id="b7d50908-b17c-442d-ad8d-810c63997ed9",  # Use Helpful Woman voice by default
+    )
+
+    # Initialize speech-to-text service (for human conversation phase)
+    stt = DeepgramSTTService(api_key=os.getenv("DEEPGRAM_API_KEY"))
+
+    # ------------ FUNCTION DEFINITIONS ------------
+
+    async def terminate_call(
+        function_name,
+        tool_call_id,
+        args,
+        llm: LLMService,
+        context,
+        result_callback,
+        session_manager=None,
+    ):
+        """Function the bot can call to terminate the call."""
+        if session_manager:
+            # Set call terminated flag in the session manager
+            session_manager.call_flow_state.set_call_terminated()
+
+        await llm.queue_frame(EndTaskFrame(), FrameDirection.UPSTREAM)
+
+    # ------------ VOICEMAIL DETECTION PHASE SETUP ------------
+
+    # Define tools for both LLMs
+    tools = [
+        {
+            "function_declarations": [
+                {
+                    "name": "switch_to_voicemail_response",
+                    "description": "Call this function when you detect this is a voicemail system.",
+                },
+                {
+                    "name": "switch_to_human_conversation",
+                    "description": "Call this function when you detect this is a human.",
+                },
+                {
+                    "name": "terminate_call",
+                    "description": "Call this function to terminate the call.",
+                },
+            ]
+        }
+    ]
+
+    # Get voicemail detection prompt
+    voicemail_detection_prompt = call_config_manager.get_prompt("voicemail_detection_prompt")
+    if voicemail_detection_prompt:
+        system_instruction = voicemail_detection_prompt
+    else:
+        system_instruction = """You are Chatbot trying to determine if this is a voicemail system or a human.
+
+        If you hear any of these phrases (or very similar ones):
+        - "Please leave a message after the beep"
+        - "No one is available to take your call"
+        - "Record your message after the tone"
+        - "You have reached voicemail for..."
+        - "You have reached [phone number]"
+        - "[phone number] is unavailable"
+        - "The person you are trying to reach..."
+        - "The number you have dialed..."
+        - "Your call has been forwarded to an automated voice messaging system"
+
+        Then call the function switch_to_voicemail_response.
+
+        If it sounds like a human (saying hello, asking questions, etc.), call the function switch_to_human_conversation.
+
+        DO NOT say anything until you've determined if this is a voicemail or human.
+        
+        If you are asked to terminate the call, **IMMEDIATELY** call the `terminate_call` function. **FAILURE TO CALL `terminate_call` IMMEDIATELY IS A MISTAKE.**"""
+
+    # Initialize voicemail detection LLM
+    voicemail_detection_llm = GoogleLLMService(
+        model="models/gemini-2.0-flash-lite",  # Lighter model for faster detection
+        api_key=os.getenv("GOOGLE_API_KEY"),
+        system_instruction=system_instruction,
+        tools=tools,
+    )
+
+    # Initialize context and context aggregator
+    voicemail_detection_context = GoogleLLMContext()
+    voicemail_detection_context_aggregator = voicemail_detection_llm.create_context_aggregator(
+        voicemail_detection_context
+    )
+
+    # Get custom voicemail prompt if available
+    voicemail_prompt = call_config_manager.get_prompt("voicemail_prompt")
+
+    # Set up function handlers
+    handlers = FunctionHandlers(session_manager)
+    handlers.prompt = voicemail_prompt  # Set custom prompt if available
+
+    # Register functions with the voicemail detection LLM
+    voicemail_detection_llm.register_function(
+        "switch_to_voicemail_response",
+        handlers.voicemail_response,
+    )
+    voicemail_detection_llm.register_function(
+        "switch_to_human_conversation", handlers.human_conversation
+    )
+    voicemail_detection_llm.register_function(
+        "terminate_call", functools.partial(terminate_call, session_manager=session_manager)
+    )
+
+    # Set up audio collector for handling audio input
+    voicemail_detection_audio_collector = UserAudioCollector(
+        voicemail_detection_context, voicemail_detection_context_aggregator.user()
+    )
+
+    # Build voicemail detection pipeline
+    voicemail_detection_pipeline = Pipeline(
+        [
+            transport.input(),  # Transport user input
+            voicemail_detection_audio_collector,  # Collect audio frames
+            voicemail_detection_context_aggregator.user(),  # User context
+            voicemail_detection_llm,  # LLM
+            tts,  # TTS
+            transport.output(),  # Transport bot output
+            voicemail_detection_context_aggregator.assistant(),  # Assistant context
+        ]
+    )
+
+    # Create pipeline task
+    voicemail_detection_pipeline_task = PipelineTask(
+        voicemail_detection_pipeline,
+        params=PipelineParams(allow_interruptions=True),
+    )
+
+    # ------------ EVENT HANDLERS ------------
+
+    @transport.event_handler("on_joined")
+    async def on_joined(transport, data):
+        # Start dialout if needed
+        if not test_mode and dialout_settings:
+            logger.debug("Dialout settings detected; starting dialout")
+            await call_config_manager.start_dialout(transport, dialout_settings)
+
+    @transport.event_handler("on_dialout_connected")
+    async def on_dialout_connected(transport, data):
+        logger.debug(f"Dial-out connected: {data}")
+
+    @transport.event_handler("on_dialout_answered")
+    async def on_dialout_answered(transport, data):
+        logger.debug(f"Dial-out answered: {data}")
+        # Start capturing transcription
+        await transport.capture_participant_transcription(data["sessionId"])
+
+    @transport.event_handler("on_first_participant_joined")
+    async def on_first_participant_joined(transport, participant):
+        logger.debug(f"First participant joined: {participant['id']}")
+        if test_mode:
+            await transport.capture_participant_transcription(participant["id"])
+
+    @transport.event_handler("on_participant_left")
+    async def on_participant_left(transport, participant, reason):
+        # Mark that a participant left early
+        session_manager.call_flow_state.set_participant_left_early()
+        await voicemail_detection_pipeline_task.queue_frame(EndFrame())
+
+    # ------------ RUN VOICEMAIL DETECTION PIPELINE ------------
+
+    if test_mode:
+        logger.debug("Detect voicemail example. You can test this in Daily Prebuilt")
+
+    runner = PipelineRunner()
+
+    print("!!! starting voicemail detection pipeline")
+    try:
+        await runner.run(voicemail_detection_pipeline_task)
+    except Exception as e:
+        logger.error(f"Error in voicemail detection pipeline: {e}")
+        import traceback
+
+        logger.error(traceback.format_exc())
+    print("!!! Done with voicemail detection pipeline")
+
+    # Check if we should exit early
+    if (
+        session_manager.call_flow_state.participant_left_early
+        or session_manager.call_flow_state.call_terminated
+    ):
+        if session_manager.call_flow_state.participant_left_early:
+            print("!!! Participant left early; terminating call")
+        elif session_manager.call_flow_state.call_terminated:
+            print("!!! Bot terminated call; not proceeding to human conversation")
+        return
+
+    # ------------ HUMAN CONVERSATION PHASE SETUP ------------
+
+    # Get human conversation prompt
+    human_conversation_prompt = call_config_manager.get_prompt("human_conversation_prompt")
+    if human_conversation_prompt:
+        human_conversation_system_instruction = human_conversation_prompt
+    else:
+        human_conversation_system_instruction = """You are Chatbot talking to a human. Be friendly and helpful.
+
+        Start with: "Hello! I'm a friendly chatbot. How can I help you today?"
+
+        Keep your responses brief and to the point. Listen to what the person says.
+
+        When the person indicates they're done with the conversation by saying something like:
+        - "Goodbye"
+        - "That's all"
+        - "I'm done"
+        - "Thank you, that's all I needed"
+
+        THEN say: "Thank you for chatting. Goodbye!" and call the terminate_call function."""
+
+    # Initialize human conversation LLM
+    human_conversation_llm = GoogleLLMService(
+        model="models/gemini-2.0-flash-001",  # Full model for better conversation
+        api_key=os.getenv("GOOGLE_API_KEY"),
+        system_instruction=human_conversation_system_instruction,
+        tools=tools,
+    )
+
+    # Initialize context and context aggregator
+    human_conversation_context = GoogleLLMContext()
+    human_conversation_context_aggregator = human_conversation_llm.create_context_aggregator(
+        human_conversation_context
+    )
+
+    # Register terminate function with the human conversation LLM
+    human_conversation_llm.register_function(
+        "terminate_call", functools.partial(terminate_call, session_manager=session_manager)
+    )
+
+    # Build human conversation pipeline
+    human_conversation_pipeline = Pipeline(
+        [
+            transport.input(),  # Transport user input
+            stt,  # Speech-to-text
+            human_conversation_context_aggregator.user(),  # User context
+            human_conversation_llm,  # LLM
+            tts,  # TTS
+            transport.output(),  # Transport bot output
+            human_conversation_context_aggregator.assistant(),  # Assistant context
+        ]
+    )
+
+    # Create pipeline task
+    human_conversation_pipeline_task = PipelineTask(
+        human_conversation_pipeline,
+        params=PipelineParams(allow_interruptions=True),
+    )
+
+    # Update participant left handler for human conversation phase
+    @transport.event_handler("on_participant_left")
+    async def on_participant_left(transport, participant, reason):
+        await voicemail_detection_pipeline_task.queue_frame(EndFrame())
+        await human_conversation_pipeline_task.queue_frame(EndFrame())
+
+    # ------------ RUN HUMAN CONVERSATION PIPELINE ------------
+
+    print("!!! starting human conversation pipeline")
+
+    # Initialize the context with system message
+    human_conversation_context_aggregator.user().set_messages(
+        [call_config_manager.create_system_message(human_conversation_system_instruction)]
+    )
+
+    # Queue the context frame to start the conversation
+    await human_conversation_pipeline_task.queue_frames(
+        [human_conversation_context_aggregator.user().get_context_frame()]
+    )
+
+    # Run the human conversation pipeline
+    try:
+        await runner.run(human_conversation_pipeline_task)
+    except Exception as e:
+        logger.error(f"Error in voicemail detection pipeline: {e}")
+        import traceback
+
+        logger.error(traceback.format_exc())
+
+    print("!!! Done with human conversation pipeline")
+
+
+# ------------ SCRIPT ENTRY POINT ------------
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser(description="Pipecat Voicemail Detection Bot")
+    parser.add_argument("-u", "--url", type=str, help="Room URL")
+    parser.add_argument("-t", "--token", type=str, help="Room Token")
+    parser.add_argument("-b", "--body", type=str, help="JSON configuration string")
+
+    args = parser.parse_args()
+
+    # Log the arguments for debugging
+    logger.info(f"Room URL: {args.url}")
+    logger.info(f"Token: {args.token}")
+    logger.info(f"Body provided: {bool(args.body)}")
+
+    asyncio.run(main(args.url, args.token, args.body))

examples/simple-chatbot/client/javascript/package.json

@@ -15,7 +15,7 @@
     "vite": "^6.0.9"
   },
   "dependencies": {
-    "@pipecat-ai/client-js": "^0.3.2",
-    "@pipecat-ai/daily-transport": "^0.3.4"
+    "@pipecat-ai/client-js": "^0.3.5",
+    "@pipecat-ai/daily-transport": "^0.3.8"
   }
 }

examples/simple-chatbot/client/javascript/src/app.js

@@ -16,7 +16,7 @@
  * - Browser with WebRTC support
  */
 
-import { RTVIClient, RTVIEvent } from '@pipecat-ai/client-js';
+import { LLMHelper, RTVIClient, RTVIEvent } from '@pipecat-ai/client-js';
 import { DailyTransport } from '@pipecat-ai/daily-transport';
 
 /**
@@ -27,8 +27,10 @@ class ChatbotClient {
   constructor() {
     // Initialize client state
     this.rtviClient = null;
+    this.llmHelper = null;
     this.setupDOMElements();
     this.setupEventListeners();
+    this.initializeClientAndTransport();
   }
 
   /**
@@ -57,6 +59,86 @@ class ChatbotClient {
     this.disconnectBtn.addEventListener('click', () => this.disconnect());
   }
 
+  /**
+   * Set up the RTVI client and Daily transport
+   */
+  initializeClientAndTransport() {
+    // Initialize the RTVI client with a DailyTransport and our configuration
+    this.rtviClient = new RTVIClient({
+      transport: new DailyTransport(),
+      params: {
+        // The baseURL and endpoint of your bot server that the client will connect to
+        baseUrl: 'http://localhost:7860',
+        endpoints: {
+          connect: '/connect',
+        },
+      },
+      enableMic: true, // Enable microphone for user input
+      enableCam: false,
+      callbacks: {
+        // Handle connection state changes
+        onConnected: () => {
+          this.updateStatus('Connected');
+          this.connectBtn.disabled = true;
+          this.disconnectBtn.disabled = false;
+          this.log('Client connected');
+        },
+        onDisconnected: () => {
+          this.updateStatus('Disconnected');
+          this.connectBtn.disabled = false;
+          this.disconnectBtn.disabled = true;
+          this.log('Client disconnected');
+        },
+        // Handle transport state changes
+        onTransportStateChanged: (state) => {
+          this.updateStatus(`Transport: ${state}`);
+          this.log(`Transport state changed: ${state}`);
+          if (state === 'ready') {
+            this.setupMediaTracks();
+          }
+        },
+        // Handle bot connection events
+        onBotConnected: (participant) => {
+          this.log(`Bot connected: ${JSON.stringify(participant)}`);
+        },
+        onBotDisconnected: (participant) => {
+          this.log(`Bot disconnected: ${JSON.stringify(participant)}`);
+        },
+        onBotReady: (data) => {
+          this.log(`Bot ready: ${JSON.stringify(data)}`);
+          this.setupMediaTracks();
+        },
+        // Transcript events
+        onUserTranscript: (data) => {
+          // Only log final transcripts
+          if (data.final) {
+            this.log(`User: ${data.text}`);
+          }
+        },
+        onBotTranscript: (data) => {
+          this.log(`Bot: ${data.text}`);
+        },
+        // Error handling
+        onMessageError: (error) => {
+          console.log('Message error:', error);
+        },
+        onError: (error) => {
+          console.log('Error:', JSON.stringify(error));
+        },
+      },
+    });
+
+    this.llmHelper = new LLMHelper({});
+    rtviClient.registerHelper('llm', this.llmHelper);
+
+    // Uncomment for debugging
+    // window.rtviClient = this.rtviClient;
+    // window.llmHelper = this.llmHelper;
+
+    // Set up listeners for media track events
+    this.setupTrackListeners();
+  }
+
   /**
    * Add a timestamped message to the debug log
    */
@@ -181,77 +263,6 @@ class ChatbotClient {
    */
   async connect() {
     try {
-      // Create a new Daily transport for WebRTC communication
-      const transport = new DailyTransport();
-
-      // Initialize the RTVI client with our configuration
-      this.rtviClient = new RTVIClient({
-        transport,
-        params: {
-          // The baseURL and endpoint of your bot server that the client will connect to
-          baseUrl: 'http://localhost:7860',
-          endpoints: {
-            connect: '/connect',
-          },
-        },
-        enableMic: true, // Enable microphone for user input
-        enableCam: false,
-        callbacks: {
-          // Handle connection state changes
-          onConnected: () => {
-            this.updateStatus('Connected');
-            this.connectBtn.disabled = true;
-            this.disconnectBtn.disabled = false;
-            this.log('Client connected');
-          },
-          onDisconnected: () => {
-            this.updateStatus('Disconnected');
-            this.connectBtn.disabled = false;
-            this.disconnectBtn.disabled = true;
-            this.log('Client disconnected');
-          },
-          // Handle transport state changes
-          onTransportStateChanged: (state) => {
-            this.updateStatus(`Transport: ${state}`);
-            this.log(`Transport state changed: ${state}`);
-            if (state === 'ready') {
-              this.setupMediaTracks();
-            }
-          },
-          // Handle bot connection events
-          onBotConnected: (participant) => {
-            this.log(`Bot connected: ${JSON.stringify(participant)}`);
-          },
-          onBotDisconnected: (participant) => {
-            this.log(`Bot disconnected: ${JSON.stringify(participant)}`);
-          },
-          onBotReady: (data) => {
-            this.log(`Bot ready: ${JSON.stringify(data)}`);
-            this.setupMediaTracks();
-          },
-          // Transcript events
-          onUserTranscript: (data) => {
-            // Only log final transcripts
-            if (data.final) {
-              this.log(`User: ${data.text}`);
-            }
-          },
-          onBotTranscript: (data) => {
-            this.log(`Bot: ${data.text}`);
-          },
-          // Error handling
-          onMessageError: (error) => {
-            console.log('Message error:', error);
-          },
-          onError: (error) => {
-            console.log('Error:', error);
-          },
-        },
-      });
-
-      // Set up listeners for media track events
-      this.setupTrackListeners();
-
       // Initialize audio/video devices
       this.log('Initializing devices...');
       await this.rtviClient.initDevices();
@@ -286,7 +297,6 @@ class ChatbotClient {
       try {
         // Disconnect the RTVI client
         await this.rtviClient.disconnect();
-        this.rtviClient = null;
 
         // Clean up audio
         if (this.botAudio.srcObject) {

examples/simple-chatbot/client/react/package.json

@@ -10,9 +10,9 @@
     "preview": "vite preview"
   },
   "dependencies": {
-    "@pipecat-ai/client-js": "^0.3.2",
-    "@pipecat-ai/client-react": "^0.3.2",
-    "@pipecat-ai/daily-transport": "^0.3.4",
+    "@pipecat-ai/client-js": "^0.3.5",
+    "@pipecat-ai/client-react": "^0.3.5",
+    "@pipecat-ai/daily-transport": "^0.3.8",
     "react": "^18.3.1",
     "react-dom": "^18.3.1"
   },

examples/simple-chatbot/server/bot-openai.py

@@ -41,6 +41,8 @@ from pipecat.pipeline.task import PipelineParams, PipelineTask
 from pipecat.processors.aggregators.openai_llm_context import OpenAILLMContext
 from pipecat.processors.frame_processor import FrameDirection, FrameProcessor
 from pipecat.processors.frameworks.rtvi import RTVIConfig, RTVIObserver, RTVIProcessor
+from pipecat.processors.frameworks.rtvi_helpers.llm import RTVILLMHelper
+
 from pipecat.services.elevenlabs.tts import ElevenLabsTTSService
 from pipecat.services.openai.llm import OpenAILLMService
 from pipecat.transports.services.daily import DailyParams, DailyTransport
@@ -182,6 +184,11 @@ async def main():
         # RTVI events for Pipecat client UI
         #
         rtvi = RTVIProcessor(config=RTVIConfig(config=[]))
+        llmHelper = RTVILLMHelper(
+            service="llm",
+            user_aggregator=context_aggregator.user(),
+        )
+        llmHelper.register_actions(rtvi)
 
         pipeline = Pipeline(
             [

examples/simple-chatbot/server/env.example

@@ -1,4 +1,5 @@
-DAILY_SAMPLE_ROOM_URL=https://yourdomain.daily.co/yourroom # (for joining the bot to the same room repeatedly for local dev)
+DAILY_SAMPLE_ROOM_URL=https://yourdomain.daily.co/yourroom # (optional: for joining the bot to the same room repeatedly for local dev)
+DAILY_SAMPLE_ROOM_TOKEN=9c8... # (optional: if your room above requires a token)
 DAILY_API_KEY=7df...
 OPENAI_API_KEY=sk-PL...
 GEMINI_API_KEY=AIza...

examples/simple-chatbot/server/server.py

@@ -111,15 +111,19 @@ async def create_room_and_token() -> tuple[str, str]:
     Raises:
         HTTPException: If room creation or token generation fails
     """
-    room = await daily_helpers["rest"].create_room(DailyRoomParams())
-    if not room.url:
-        raise HTTPException(status_code=500, detail="Failed to create room")
+    room_url = os.getenv("DAILY_SAMPLE_ROOM_URL", None)
+    token = os.getenv("DAILY_SAMPLE_ROOM_TOKEN", None)
+    if not room_url:
+        room = await daily_helpers["rest"].create_room(DailyRoomParams())
+        if not room.url:
+            raise HTTPException(status_code=500, detail="Failed to create room")
+        room_url = room.url
 
-    token = await daily_helpers["rest"].get_token(room.url)
-    if not token:
-        raise HTTPException(status_code=500, detail=f"Failed to get token for room: {room.url}")
+        token = await daily_helpers["rest"].get_token(room_url)
+        if not token:
+            raise HTTPException(status_code=500, detail=f"Failed to get token for room: {room_url}")
 
-    return room.url, token
+    return room_url, token
 
 
 @app.get("/")

pyproject.toml

@@ -31,7 +31,7 @@ dependencies = [
     "pyloudnorm~=0.1.1",
     "resampy~=0.4.3",
     "soxr~=0.5.0",
-    "openai~=1.67.0"
+    "openai~=1.70.0"
 ]
 
 [project.urls]
@@ -85,7 +85,7 @@ soundfile = [ "soundfile~=0.13.0" ]
 tavus=[]
 together = []
 ultravox = [ "transformers~=4.48.0", "vllm~=0.7.3" ]
-webrtc = [ "aiortc~=1.10.1", "opencv-python~=4.11.0.86" ]
+webrtc = [ "aiortc~=1.11.0", "opencv-python~=4.11.0.86" ]
 websocket = [ "websockets~=13.1", "fastapi~=0.115.6" ]
 whisper = [ "faster-whisper~=1.1.1" ]
 
@@ -115,6 +115,9 @@ select = [
     "D", # Docstring rules
     "I", # Import rules
 ]
+# We ignore D107 because class docstrings already document __init__ parameters
+# and our Sphinx configuration uses napoleon_include_init_with_doc=True
+ignore = ["D107"]
 
 [tool.ruff.lint.pydocstyle]
 convention = "google"

src/pipecat/adapters/schemas/function_schema.py

@@ -8,16 +8,22 @@ from typing import Any, Dict, List
 
 
 class FunctionSchema:
+    """Standardized function schema representation for tool definition.
+
+    Provides a structured way to define function tools used with AI models like OpenAI.
+    This schema defines the function's name, description, parameter properties, and
+    required parameters, following specifications required by AI service providers.
+
+    Args:
+        name: Name of the function to be called.
+        description: Description of what the function does.
+        properties: Dictionary defining parameter types, descriptions, and constraints.
+        required: List of property names that are required parameters.
+    """
+
     def __init__(
         self, name: str, description: str, properties: Dict[str, Any], required: List[str]
     ) -> None:
-        """Standardized function schema representation.
-
-        :param name: Name of the function.
-        :param description: Description of the function.
-        :param properties: Dictionary defining properties types and descriptions.
-        :param required: List of required parameters.
-        """
         self._name = name
         self._description = description
         self._properties = properties
@@ -26,7 +32,8 @@ class FunctionSchema:
     def to_default_dict(self) -> Dict[str, Any]:
         """Converts the function schema to a dictionary.
 
-        :return: Dictionary representation of the function schema.
+        Returns:
+            Dictionary representation of the function schema.
         """
         return {
             "name": self._name,
@@ -40,16 +47,36 @@ class FunctionSchema:
 
     @property
     def name(self) -> str:
+        """Get the function name.
+
+        Returns:
+            The function name.
+        """
         return self._name
 
     @property
     def description(self) -> str:
+        """Get the function description.
+
+        Returns:
+            The function description.
+        """
         return self._description
 
     @property
     def properties(self) -> Dict[str, Any]:
+        """Get the function properties.
+
+        Returns:
+            Dictionary of parameter specifications.
+        """
         return self._properties
 
     @property
     def required(self) -> List[str]:
+        """Get the required parameters.
+
+        Returns:
+            List of required parameter names.
+        """
         return self._required

src/pipecat/processors/aggregators/llm_response.py

@@ -149,7 +149,8 @@ class BaseLLMResponseAggregator(FrameProcessor):
     @abstractmethod
     def reset(self):
         """Reset the internals of this aggregator. This should not modify the
-        internal messages."""
+        internal messages.
+        """
         pass
 
     @abstractmethod
@@ -446,6 +447,7 @@ class LLMAssistantContextAggregator(LLMContextResponseAggregator):
             await self._handle_user_image_frame(frame)
         elif isinstance(frame, BotStoppedSpeakingFrame):
             await self.push_aggregation()
+            await self.push_frame(frame, direction)
         else:
             await self.push_frame(frame, direction)
 

src/pipecat/processors/consumer_processor.py

@@ -0,0 +1,65 @@
+#
+# Copyright (c) 2024–2025, Daily
+#
+# SPDX-License-Identifier: BSD 2-Clause License
+#
+
+import asyncio
+from typing import Awaitable, Callable, Optional
+
+from pipecat.frames.frames import CancelFrame, EndFrame, Frame, StartFrame
+from pipecat.processors.frame_processor import FrameDirection, FrameProcessor
+from pipecat.processors.producer_processor import ProducerProcessor, identity_transformer
+
+
+class ConsumerProcessor(FrameProcessor):
+    """This class passes-through frames and also consumes frames from a
+    producer's queue. When a frame from a producer queue is received it will be
+    pushed to the specified direction. The frames can be transformed into a
+    different type of frame before being pushed.
+
+    """
+
+    def __init__(
+        self,
+        *,
+        producer: ProducerProcessor,
+        transformer: Callable[[Frame], Awaitable[Frame]] = identity_transformer,
+        direction: FrameDirection = FrameDirection.DOWNSTREAM,
+        **kwargs,
+    ):
+        super().__init__(**kwargs)
+        self._transformer = transformer
+        self._direction = direction
+        self._queue: asyncio.Queue = producer.add_consumer()
+        self._consumer_task: Optional[asyncio.Task] = None
+
+    async def process_frame(self, frame: Frame, direction: FrameDirection):
+        await super().process_frame(frame, direction)
+
+        if isinstance(frame, StartFrame):
+            await self._start(frame)
+        elif isinstance(frame, EndFrame):
+            await self._stop(frame)
+        elif isinstance(frame, CancelFrame):
+            await self._cancel(frame)
+
+        await self.push_frame(frame, direction)
+
+    async def _start(self, _: StartFrame):
+        if not self._consumer_task:
+            self._consumer_task = self.create_task(self._consumer_task_handler())
+
+    async def _stop(self, _: EndFrame):
+        if self._consumer_task:
+            await self.cancel_task(self._consumer_task)
+
+    async def _cancel(self, _: CancelFrame):
+        if self._consumer_task:
+            await self.cancel_task(self._consumer_task)
+
+    async def _consumer_task_handler(self):
+        while True:
+            frame = await self._queue.get()
+            new_frame = await self._transformer(frame)
+            await self.push_frame(new_frame, self._direction)

src/pipecat/processors/frameworks/rtvi_helpers/llm.py

@@ -0,0 +1,210 @@
+import sys
+from enum import Enum
+from typing import Any, Dict, List
+
+from openai._types import NotGiven
+from pydantic import BaseModel
+
+from pipecat.frames.frames import (
+    LLMMessagesAppendFrame,
+    LLMMessagesUpdateFrame,
+    LLMSetToolsFrame,
+)
+from pipecat.processors.aggregators.llm_response import (
+    LLMUserContextAggregator,
+)
+from pipecat.processors.frameworks.rtvi import (
+    ActionResult,
+    RTVIAction,
+    RTVIActionArgument,
+    RTVIProcessor,
+)
+
+if sys.version_info < (3, 11):
+
+    class StrEnum(str, Enum):
+        """A string-based Enum class for Python versions < 3.11."""
+        def __new__(cls, value):
+            """Constructor for StrEnum."""
+            obj = str.__new__(cls, value)
+            obj._value_ = value
+            return obj
+else:
+    from enum import StrEnum
+
+
+class RTVILLMActionType(StrEnum):
+    """Enum for RTVI LLM action types."""
+    APPEND_TO_MESSAGES = "append_to_messages"
+    GET_CONTEXT = "get_context"
+    SET_CONTEXT = "set_context"
+    RUN = "run"
+
+
+class RTVIHelper(BaseModel):
+    """Abstract class for helpers meant to handle various service related requests."""
+
+    def __init__(self, service: str):
+        super().__init__()
+        self._service = service
+        self._actions = []
+
+    def register_actions(self, rtvi: RTVIProcessor):
+        """Register the actions for the RTVI LLM helper."""
+        for action in self._actions:
+            rtvi.register_action(action)
+
+
+class RTVILLMHelper(RTVIHelper):
+    """Helper class for handling RTVI LLM-related requests."""
+
+    def __init__(self, service: str, user_aggregator: LLMUserContextAggregator):
+        super().__init__(service)
+        self._user_aggregator = user_aggregator
+        self.setupActions()
+
+    def setupActions(self):
+        """Set up the actions for the RTVI LLM helper."""
+        self._actions.append(RTVIAction(
+            service=self._service,
+            action=RTVILLMActionType.APPEND_TO_MESSAGES,
+            result="bool",
+            arguments=[
+                RTVIActionArgument(name="messages", type="array"),
+                RTVIActionArgument(name="run_immediately", type="bool"),
+            ],
+            handler=self.append_to_messages_handler,
+        ))
+        self._actions.append(RTVIAction(
+            service=self._service,
+            action=RTVILLMActionType.GET_CONTEXT,
+            result="array",
+            handler=self.get_context_handler
+        ))
+        self._actions.append(RTVIAction(
+            service=self._service,
+            action=RTVILLMActionType.SET_CONTEXT,
+            result="bool",
+            arguments=[
+                RTVIActionArgument(name="messages", type="array"),
+                RTVIActionArgument(name="tools", type="array"),
+            ],
+            handler=self.set_context_handler,
+        ))
+        self._actions.append(RTVIAction(
+            service=self._service,
+            action=RTVILLMActionType.RUN,
+            result="bool",
+            arguments=[RTVIActionArgument(name="interrupt", type="bool")],
+            handler=self.run_handler,
+        ))
+
+    async def append_to_messages_handler(
+            self, rtvi: RTVIProcessor, service: str, arguments: Dict[str, Any]) -> ActionResult:
+        """Handle the LLM append-to-messages action.
+
+        Args:
+            rtvi: The RTVIProcessor instance managing the bot's real-time interaction.
+            service: The name of the service handling the action.
+            arguments: A dictionary of arguments for the action, including 'messages' and 'run_immediately'.
+
+        Returns:
+            ActionResult: A boolean indicating the success of the action.
+        """
+        print('action_llm_append_to_messages_handler', arguments)
+        run_immediately = arguments["run_immediately"] if "run_immediately" in arguments else True
+
+        if run_immediately:
+            await rtvi.interrupt_bot()
+
+        # We just interrupted the bot so it should be fine to use the
+        # context directly instead of through frame.
+
+        if "messages" in arguments and arguments["messages"]:
+            frame = LLMMessagesAppendFrame(messages=arguments["messages"])
+            await rtvi.push_frame(frame)
+
+        if run_immediately:
+            frame = self._user_aggregator.get_context_frame()
+            await rtvi.push_frame(frame)
+
+        return True
+
+    async def get_context_handler(
+        self, rtvi: RTVIProcessor, service: str, arguments: Dict[str, Any]
+    ) -> ActionResult:
+        """Handle the RTVI get-context action.
+
+        Args:
+            rtvi: The RTVIProcessor instance managing the bot's real-time interaction.
+            service: The name of the service handling the action.
+            arguments: A dictionary of arguments for the action.
+
+        Returns:
+            ActionResult: A dictionary containing the context messages and tools.
+        """
+        messages = self._user_aggregator.context.messages
+        tools = (
+            self._user_aggregator.context.tools
+            # TODO: Is it ok that we have to depend on an openai type here?
+            if not isinstance(self._user_aggregator.context.tools, NotGiven)
+            else []
+        )
+        result = {"messages": messages, "tools": tools}
+        return result
+
+    async def set_context_handler(
+        self, rtvi: RTVIProcessor, service: str, arguments: Dict[str, Any]
+    ) -> ActionResult:
+        """Handle the RTVI set-context action.
+
+        Args:
+            rtvi: The RTVIProcessor instance managing the bot's real-time interaction.
+            service: The name of the service handling the action.
+            arguments: A dictionary of arguments for the action, including 'messages' and 'tools'.
+
+        Returns:
+            ActionResult: A boolean indicating the success of the action.
+        """
+        run_immediately = arguments["run_immediately"] if "run_immediately" in arguments else True
+
+        if run_immediately:
+            await rtvi.interrupt_bot()
+
+        # We just interrupted the bot so it should be find to use the
+        # context directly instead of through frame.
+
+        if "messages" in arguments and arguments["messages"]:
+            frame = LLMMessagesUpdateFrame(messages=arguments["messages"])
+            await rtvi.push_frame(frame)
+
+        if "tools" in arguments and arguments["tools"]:
+            frame = LLMSetToolsFrame(tools=arguments["tools"])
+            await rtvi.push_frame(frame)
+
+        if run_immediately:
+            frame = self._user_aggregator.get_context_frame()
+            await rtvi.push_frame(frame)
+
+        return True
+
+    async def run_handler(
+        self, rtvi: RTVIProcessor, service: str, arguments: Dict[str, Any]
+    ) -> ActionResult:
+        """Handle the RTVI run action.
+
+        Args:
+            rtvi: The RTVIProcessor instance managing the bot's real-time interaction.
+            service: The name of the service handling the action.
+            arguments: A dictionary of arguments for the action, including 'interrupt'.
+
+        Returns:
+            ActionResult: A boolean indicating the success of the action.
+        """
+        interrupt = arguments["interrupt"] if "interrupt" in arguments else True
+        if interrupt:
+            await rtvi.interrupt_bot()
+        frame = self._user_aggregator.get_context_frame()
+        await rtvi.push_frame(frame)
+
+        return True

src/pipecat/processors/producer_processor.py

@@ -0,0 +1,73 @@
+#
+# Copyright (c) 2024–2025, Daily
+#
+# SPDX-License-Identifier: BSD 2-Clause License
+#
+
+import asyncio
+from typing import Awaitable, Callable, List
+
+from pipecat.frames.frames import Frame
+from pipecat.processors.frame_processor import FrameDirection, FrameProcessor
+
+
+async def identity_transformer(frame: Frame):
+    return frame
+
+
+class ProducerProcessor(FrameProcessor):
+    """This class optionally passes-through received frames and decides if those
+    frames should be sent to consumers based on a user-defined filter. The
+    frames can be transformed into a different type of frame before being
+    sending them to the consumers. More than one consumer can be added.
+
+    """
+
+    def __init__(
+        self,
+        *,
+        filter: Callable[[Frame], Awaitable[bool]],
+        transformer: Callable[[Frame], Awaitable[Frame]] = identity_transformer,
+        passthrough: bool = True,
+    ):
+        super().__init__()
+        self._filter = filter
+        self._transformer = transformer
+        self._passthrough = passthrough
+        self._consumers: List[asyncio.Queue] = []
+
+    def add_consumer(self):
+        """
+        Adds a new consumer and returns its associated queue.
+
+        Returns:
+            asyncio.Queue: The queue for the newly added consumer.
+        """
+        queue = asyncio.Queue()
+        self._consumers.append(queue)
+        return queue
+
+    async def process_frame(self, frame: Frame, direction: FrameDirection):
+        """
+        Processes an incoming frame and determines whether to produce it as a ProducerItem.
+
+        If the frame meets the produce criteria, it will be added to the consumer queues.
+        If passthrough is enabled, the frame will also be sent to consumers.
+
+        Args:
+            frame (Frame): The frame to process.
+            direction (FrameDirection): The direction of the frame.
+        """
+        await super().process_frame(frame, direction)
+
+        if await self._filter(frame):
+            await self._produce(frame)
+            if self._passthrough:
+                await self.push_frame(frame, direction)
+        else:
+            await self.push_frame(frame, direction)
+
+    async def _produce(self, frame: Frame):
+        for consumer in self._consumers:
+            new_frame = await self._transformer(frame)
+            await consumer.put(new_frame)

src/pipecat/services/azure/tts.py

@@ -159,8 +159,8 @@ class AzureTTSService(AzureBaseTTSService):
         self._speech_config = SpeechConfig(
             subscription=self._api_key,
             region=self._region,
-            speech_recognition_language=self._settings["language"],
         )
+        self._speech_config.speech_synthesis_language = self._settings["language"]
         self._speech_config.set_speech_synthesis_output_format(
             sample_rate_to_output_format(self.sample_rate)
         )
@@ -254,8 +254,8 @@ class AzureHttpTTSService(AzureBaseTTSService):
         self._speech_config = SpeechConfig(
             subscription=self._api_key,
             region=self._region,
-            speech_recognition_language=self._settings["language"],
         )
+        self._speech_config.speech_synthesis_language = self._settings["language"]
         self._speech_config.set_speech_synthesis_output_format(
             sample_rate_to_output_format(self.sample_rate)
         )

src/pipecat/services/cartesia/tts.py

@@ -158,7 +158,7 @@ class CartesiaTTSService(AudioContextWordTTSService):
                 voice_config["__experimental_controls"]["emotion"] = self._settings["emotion"]
 
         msg = {
-            "transcript": text or " ",  # Text must contain at least one character
+            "transcript": text,
             "continue": continue_transcript,
             "context_id": self._context_id,
             "model_id": self.model_name,
@@ -287,7 +287,7 @@ class CartesiaTTSService(AudioContextWordTTSService):
                 self._context_id = str(uuid.uuid4())
                 await self.create_audio_context(self._context_id)
 
-            msg = self._build_msg(text=text or " ")  # Text must contain at least one character
+            msg = self._build_msg(text=text)
 
             try:
                 await self._get_websocket().send(msg)