hi - how do i debug web socket errors when i'm using twilio's outbound API to connect to elevenlabs | ElevenLabs | Page 1

AI-generated Answer for zippy6695

To debug WebSocket errors when using Twilio's outbound API to connect to ElevenLabs Conversational AI, here are some steps and considerations:

1. Verify WebSocket URL and Parameters

Ensure the WebSocket URL is correctly formatted, including the agent_id and conversation_signature.
Double-check the query parameters (& instead of ? for multiple parameters) and ensure they are properly encoded.

2. Authentication

Confirm that your API key is valid and active. The API key must be included in the headers when generating the signed WebSocket URL.
If you're using a private agent, ensure the signed URL is generated correctly using the API key.

3. Audio Format Settings

Ensure the agent is configured with the correct audio settings:
- Navigate to the agent settings.
- In the Voice Section, select "μ-law 8000 Hz."
- In the Advanced Section, set the input format to "μ-law 8000 Hz."

4. Connection Setup

Check that the WebSocket protocol is secure (wss://).
Verify that Twilio is not behind a proxy that blocks WebSocket connections.
Ensure microphone permissions are granted if applicable.

5. Error Handling

Log all WebSocket events (onopen, onmessage, onerror, onclose) to track the flow of data and identify where the connection fails.
Implement reconnection logic with exponential backoff to recover from failed connections.

6. Common Fixes

If the WebSocket connection opens but immediately closes, it could indicate a protocol mismatch. Ensure the payload sent to the WebSocket complies with the expected format.
For Twilio-specific errors like 31951, ensure the message sent to the WebSocket adheres to the protocol requirements.

7. Testing

Test the API calls directly using tools like Postman to verify authentication and signed URL generation.
Use the ElevenLabs platform to test the agent directly and confirm it works with the system prompt and tools you've configured.

8. Dynamic Variables

If you're using dynamic variables, ensure they are properly configured in the webhook. You can refer to the Twilio Personalization guide for more details.

Example Debugging Code

Here’s an example of generating a signed URL for private agents:

const response = await fetch(
  "https://api.elevenlabs.io/v1/convai/conversation/get_signed_url?agent_id=YK13zBDj19xoTJOndE2a",
  {
    headers: {
      "xi-api-key": "YOUR_API_KEY"
    }
  }
);

If you continue to face issues, please share the specific error messages or behaviors you're encountering, and I can provide further assistance.

#hi - how do i debug web socket errors when i'm using twilio's outbound API to connect to elevenlabs