One of our calls (a3f5fe84-1e94-4d95-b343-8ecee4bf3575) got this error: call.in-progress.error-providerfault-transport-never-connected Here are the Twilio logs: POST https://api.vapi.ai/twilio/inbound_call 2025-05-09 18:10:49 UTC 5820ms 201

<Response>
    <Connect>
        <Stream url='wss://phone-call-websocket.aws-us-west-2-backend-production-weekly1.vapi.ai/a3f5fe84-1e94-4d95-b343-8ecee4bf3575/transport'
            statusCallback='https://api.aws-us-west-2-backend-production-weekly1.vapi.ai/twilio/stream?callId=a3f5fe84-1e94-4d95-b343-8ecee4bf3575'
            >
            <Parameter name="callId" value='a3f5fe84-1e94-4d95-b343-8ecee4bf3575' />
        </Stream>
    </Connect>
</Response>

POST https://api.twilio.com/2010-04-01/Accounts/REDACTED/Calls/REDACTED.json 2025-05-09 18:11:20 UTC 30ms 400

{
  "message": "Call is not in-progress. Cannot redirect. ",
  "code": 21220,
  "user_error": true,
  "params": {},
  "httpStatusCode": -1
}

Thanks for sharing the details and logs about the error you encountered. At the moment, I don't have any additional information available about the "call.in-progress.error-providerfault-transport-never-connected" error or the specific Twilio response you've received. If you have any more details or questions, feel free to share them!

To help track down this issue, could you share one or two: - When exactly this happened (the timestamp) - What response you expected to get - What response you actually got instead This would really help us figure out what went wrong!

Please read the message I sent. The call errored, and the expectation is for it not to error.

Looking into it

Thank you 🙏

🔵 18:11:19:913 CallId `a3f5fe84-1e94-4d95-b343-8ecee4bf3575` Worker Ending Call With Reason call.in-progress.error-providerfault-transport-never-connected. Error: {
  "code": "ETIMEDOUT",
  "message": "timeout"
}

Telephony didn't connected in required time, you have to check with your telephony for more details.

Do the logs I shared from Twilio help with anything for this?

Hey, Could you please schedule a brief call at your convenience so we can discuss this matter in detail? Kindly use the following link to book a suitable time: .