Getting these issues for our calls with VAPI numbers and with Twilio numbers. Can someone please help? Here are some call IDs with this issue: 019aa43a-19e4-7009-93f0-de7668813afc 019aa439-4d95-7115-8106-76b86ba91b02 019aa438-95b2-7223-9c69-3c473e8f4c12

The error

call.in-progress.error-providerfault-transport-never-connected

means your call provider (like Twilio) failed to establish a connection, often due to provider-side issues. The best next step is to contact Vapi support with your

call_id

and account email for investigation.

text
Please email support@vapi.ai with your call IDs and a description of the issue.

This will help the team review provider logs and assist you directly. Reference: [Vapi call ended reason documentation](https://docs.vapi.ai/calls/call-ended-reason) Source: - [Vapi call ended reason documentation](https://docs.vapi.ai/calls/call-ended-reason)

I am having the same error.

Same

Twilio returns the error of: 31901 - Stream - WebSocket - Connection Timeout

Same

rip :/

Wow, all of you having these issues too.

💀

Same issue…. My clients are NOT happy

Seems to be fine now for me

Working now too.

Agree…. Has this been a common thing?

not confident or happy with VAPI. likely will switch for find another solution.

Thanks for reporting this issue. Our team noticed some degradation in our SIP server around the time this ticket was submitted, and they resolved the issue immediately. Calls should now be connecting normally. Please let us know if you see this happen again — we’ll be happy to investigate further.