# # Copyright (c) 2024–2025, Daily # # SPDX-License-Identifier: BSD 2-Clause License # """simple_dialout.py. Simple Dial-out Bot. """ import argparse import asyncio import json import os import sys from typing import Any from dotenv import load_dotenv from loguru import logger from pipecat.audio.vad.silero import SileroVADAnalyzer 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.services.cartesia.tts import CartesiaTTSService 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 run_bot( room_url: str, token: str, body: dict, ) -> None: """Run the voice bot with the given parameters. Args: room_url: The Daily room URL token: The Daily room token body: Body passed to the bot from the webhook """ # ------------ CONFIGURATION AND SETUP ------------ logger.info(f"Starting bot with room: {room_url}") logger.info(f"Token: {token}") logger.info(f"Body: {body}") # Parse the body to get the dial-in settings body_data = json.loads(body) # Check if the body contains dial-in settings logger.debug(f"Body data: {body_data}") if not body_data.get("dialout_settings"): logger.error("Dial-out settings not found in the body data") return dialout_settings = body_data["dialout_settings"] if not dialout_settings.get("phone_number"): logger.error("Dial-out phone number not found in the dial-out settings") return # Extract dial-out phone number phone_number = dialout_settings["phone_number"] caller_id = dialout_settings.get("caller_id") # Use .get() to handle optional field if caller_id: logger.info(f"Dial-out caller ID specified: {caller_id}") else: logger.info("Dial-out caller ID not specified; proceeding without it") # ------------ TRANSPORT SETUP ------------ transport_params = DailyParams( api_url=daily_api_url, api_key=daily_api_key, audio_in_enabled=True, audio_out_enabled=True, video_out_enabled=False, 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 ) # ------------ LLM AND CONTEXT SETUP ------------ # Initialize LLM llm = OpenAILLMService(api_key=os.getenv("OPENAI_API_KEY")) # Create system message and initialize messages list messages = [ { "role": "system", "content": ( "You are a friendly phone assistant. Your responses will be read aloud, " "so keep them concise and conversational. Avoid special characters or " "formatting. Begin by greeting the caller and asking how you can help them today." ), }, ] # Initialize LLM context and aggregator context = OpenAILLMContext(messages) 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( enable_metrics=True, enable_usage_metrics=True, ), ) # ------------ RETRY LOGIC VARIABLES ------------ max_retries = 5 retry_count = 0 dialout_successful = False # Build dialout parameters conditionally dialout_params = {"phoneNumber": phone_number} if caller_id: dialout_params["callerId"] = caller_id logger.debug(f"Including caller ID in dialout: {caller_id}") logger.debug(f"Dialout parameters: {dialout_params}") async def attempt_dialout(): """Attempt to start dialout with retry logic.""" nonlocal retry_count, dialout_successful if retry_count < max_retries and not dialout_successful: retry_count += 1 logger.info( f"Attempting dialout (attempt {retry_count}/{max_retries}) to: {phone_number}" ) await transport.start_dialout(dialout_params) else: logger.error(f"Maximum retry attempts ({max_retries}) reached. Giving up on dialout.") # ------------ EVENT HANDLERS ------------ @transport.event_handler("on_joined") async def on_joined(transport, data): # Start initial dialout attempt logger.debug(f"Dialout settings detected; starting dialout to number: {phone_number}") await attempt_dialout() @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): nonlocal dialout_successful logger.debug(f"Dial-out answered: {data}") dialout_successful = True # Mark as successful to stop retries # 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_dialout_error") async def on_dialout_error(transport, data: Any): logger.error(f"Dial-out error (attempt {retry_count}/{max_retries}): {data}") if retry_count < max_retries: logger.info(f"Retrying dialout") await attempt_dialout() else: logger.error(f"All {max_retries} dialout attempts failed. Stopping bot.") await task.cancel() @transport.event_handler("on_first_participant_joined") async def on_first_participant_joined(transport, participant): logger.debug(f"First participant joined: {participant['id']}") @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 ------------ runner = PipelineRunner() await runner.run(task) async def main(): """Parse command line arguments and run the bot.""" 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() logger.debug(f"url: {args.url}") logger.debug(f"token: {args.token}") logger.debug(f"body: {args.body}") if not all([args.url, args.token, args.body]): logger.error("All arguments (-u, -t, -b) are required") parser.print_help() sys.exit(1) await run_bot(args.url, args.token, args.body) if __name__ == "__main__": asyncio.run(main())