Hi all,
Some of our production outbound calls are failing intermittently due to an ended reason of "Twilio Connection Failed". It is interesting because most of the calls with the same number + assistant succeed. I raised a ticket a couple weeks ago here (
https://discord.com/channels/1211482211119796234/1275602754483785819/1275602754483785819) when we first started observing this issue and it looks like it was auto-resolved before it was addressed. We just started getting another influx of these errors.
Here is the behavior we observe:
The call log shows an ended reason of "twilio connection failed'
The call log in Vapi Call Log table shows no logs, overview, cost, call times, or duration
The numbers were not disconnected -- we tested calls to verify the numbers were online
Phone number is managed by Vapi
Server messages are not sent for the call
Most outbound calls are succeeding with the same number, assistant, and in the same prod environment
Call Record Examples:
6a3a6f5e-4c45-4b22-a599-760c9f099c5f
ee891a8e-9bdb-40dd-8660-bd0f326fd6cc
50c8ae3b-a72f-459f-aa33-ac0cf739bff5
294b02c2-e024-443c-bec4-3bf9128163f9
Any guidance on how to manage + debug these errors would be much appreciated!! Please let me know if any additional dets would help out. Thanks 🙏