diff --git a/pyrightconfig.json b/pyrightconfig.json
index 7176ab774..17359ed4a 100644
--- a/pyrightconfig.json
+++ b/pyrightconfig.json
@@ -10,7 +10,8 @@
     "src/pipecat/observers",
     "src/pipecat/extensions",
     "src/pipecat/turns",
-    "src/pipecat/pipeline"
+    "src/pipecat/pipeline",
+    "src/pipecat/runner"
   ],
   "exclude": [
     "**/*_pb2.py",
diff --git a/src/pipecat/runner/daily.py b/src/pipecat/runner/daily.py
index bc80f0641..168b2353d 100644
--- a/src/pipecat/runner/daily.py
+++ b/src/pipecat/runner/daily.py
@@ -228,7 +228,7 @@ async def configure(
             room_properties.enable_dialout = True
 
         # Add SIP configuration if enabled
-        if sip_enabled:
+        if sip_enabled and sip_caller_phone:
             sip_params = DailyRoomSipParams(
                 display_name=sip_caller_phone,
                 video=sip_enable_video,
diff --git a/src/pipecat/runner/run.py b/src/pipecat/runner/run.py
index c6d43fbbd..ca296bd78 100644
--- a/src/pipecat/runner/run.py
+++ b/src/pipecat/runner/run.py
@@ -156,6 +156,8 @@ def _get_bot_module():
                 spec = importlib.util.spec_from_file_location(
                     module_name, os.path.join(cwd, filename)
                 )
+                if spec is None or spec.loader is None:
+                    continue
                 module = importlib.util.module_from_spec(spec)
                 spec.loader.exec_module(module)
 
@@ -386,29 +388,24 @@ def _add_lifespan_to_app(app: FastAPI, new_lifespan):
 
 def _setup_whatsapp_routes(app: FastAPI, args: argparse.Namespace):
     """Set up WhatsApp-specific routes."""
-    WHATSAPP_APP_SECRET = os.getenv("WHATSAPP_APP_SECRET")
-    WHATSAPP_PHONE_NUMBER_ID = os.getenv("WHATSAPP_PHONE_NUMBER_ID")
-    WHATSAPP_TOKEN = os.getenv("WHATSAPP_TOKEN")
-    WHATSAPP_WEBHOOK_VERIFICATION_TOKEN = os.getenv("WHATSAPP_WEBHOOK_VERIFICATION_TOKEN")
-
-    if not all(
-        [
-            WHATSAPP_APP_SECRET,
-            WHATSAPP_PHONE_NUMBER_ID,
-            WHATSAPP_TOKEN,
-            WHATSAPP_WEBHOOK_VERIFICATION_TOKEN,
-        ]
-    ):
+    required_vars = [
+        "WHATSAPP_APP_SECRET",
+        "WHATSAPP_PHONE_NUMBER_ID",
+        "WHATSAPP_TOKEN",
+        "WHATSAPP_WEBHOOK_VERIFICATION_TOKEN",
+    ]
+    missing = [v for v in required_vars if not os.getenv(v)]
+    if missing:
         logger.error(
-            """Missing required environment variables for WhatsApp transport:
-    WHATSAPP_APP_SECRET
-    WHATSAPP_PHONE_NUMBER_ID
-    WHATSAPP_TOKEN
-    WHATSAPP_WEBHOOK_VERIFICATION_TOKEN
-            """
+            f"Missing required environment variables for WhatsApp transport: {', '.join(missing)}"
         )
         return
 
+    WHATSAPP_APP_SECRET = os.environ["WHATSAPP_APP_SECRET"]
+    WHATSAPP_PHONE_NUMBER_ID = os.environ["WHATSAPP_PHONE_NUMBER_ID"]
+    WHATSAPP_TOKEN = os.environ["WHATSAPP_TOKEN"]
+    WHATSAPP_WEBHOOK_VERIFICATION_TOKEN = os.environ["WHATSAPP_WEBHOOK_VERIFICATION_TOKEN"]
+
     try:
         from pipecat.transports.smallwebrtc.connection import SmallWebRTCConnection
         from pipecat.transports.whatsapp.api import WhatsAppWebhookRequest
diff --git a/src/pipecat/runner/types.py b/src/pipecat/runner/types.py
index 055824a22..b009b3350 100644
--- a/src/pipecat/runner/types.py
+++ b/src/pipecat/runner/types.py
@@ -122,4 +122,4 @@ class LiveKitRunnerArguments(RunnerArguments):
 
     room_name: str
     url: str
-    token: str | None = None
+    token: str
diff --git a/src/pipecat/runner/utils.py b/src/pipecat/runner/utils.py
index 7a4b3034c..84316a743 100644
--- a/src/pipecat/runner/utils.py
+++ b/src/pipecat/runner/utils.py
@@ -416,9 +416,9 @@ def _get_transport_params(transport_key: str, transport_params: dict[str, Callab
 
 async def _create_telephony_transport(
     websocket: WebSocket,
-    params: Any | None = None,
-    transport_type: str = None,
-    call_data: dict = None,
+    params: Any,
+    transport_type: str,
+    call_data: dict,
 ) -> BaseTransport:
     """Create a telephony transport with pre-parsed WebSocket data.
 
@@ -433,12 +433,6 @@ async def _create_telephony_transport(
     """
     from pipecat.transports.websocket.fastapi import FastAPIWebsocketTransport
 
-    if params is None:
-        raise ValueError(
-            "FastAPIWebsocketParams must be provided. "
-            "The serializer and add_wav_header will be set automatically."
-        )
-
     # Always set add_wav_header to False for telephony
     params.add_wav_header = False