Merge pull request #2726 from pipecat-ai/mb/twilio-serializer-cleanup

Fixup for TwilioFrameSerializer

CHANGELOG.md

@@ -9,6 +9,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
+- Added support to `TwilioFrameSerializer` for `region` and `edge` settings.
+
 - Added support for using universal `LLMContext` with:
 
   - `LLMLogObserver`

src/pipecat/serializers/twilio.py

@@ -76,19 +76,25 @@ class TwilioFrameSerializer(FrameSerializer):
             edge: Twilio edge location (e.g., "sydney", "dublin"). Must be specified with region.
             params: Configuration parameters.
         """
-        if not call_sid or not account_sid or not auth_token:
+        self._params = params or TwilioFrameSerializer.InputParams()
-            missing = []
-            if not call_sid:
-                missing.append("call_sid")
-            if not account_sid:
-                missing.append("account_sid")
-            if not auth_token:
-                missing.append("auth_token")
 
+        # Validate hangup-related parameters if auto_hang_up is enabled
+        if self._params.auto_hang_up:
+            # Validate required credentials
+            missing_credentials = []
+            if not call_sid:
+                missing_credentials.append("call_sid")
+            if not account_sid:
+                missing_credentials.append("account_sid")
+            if not auth_token:
+                missing_credentials.append("auth_token")
+
+            if missing_credentials:
                 raise ValueError(
-                f"Cannot hang up Twilio call: missing required parameters: {', '.join(missing)}"
+                    f"auto_hang_up is enabled but missing required parameters: {', '.join(missing_credentials)}"
                 )
 
+            # Validate region and edge are both provided if either is specified
             if (region and not edge) or (edge and not region):
                 raise ValueError(
                     "Both edge and region parameters are required if one is set. "
@@ -102,7 +108,6 @@ class TwilioFrameSerializer(FrameSerializer):
         self._auth_token = auth_token
         self._region = region
         self._edge = edge
-        self._params = params or TwilioFrameSerializer.InputParams()
 
         self._twilio_sample_rate = self._params.twilio_sample_rate
         self._sample_rate = 0  # Pipeline input rate