I’m currently experiencing an issue while trying to connect to a third-party SIP trunk. My number ID is: 4fcef2ad-0f44-4dae-b380-1648cf726d2d. The registration was working correctly until 10:00 AM (GMT+1) today. Since then, the trunk is no longer registered. Could you please let me know how I can investigate this on my side? I’d like to understand how to check the registration status and identify why it might be failing. The third-party provider claims the issue is on the VAPI side, so any guidance on how to verify this would be appreciated.

@g.g You don't really require "SIP REGISTERATION" in order to push calls into VAPI. You can send the calls directly to

e.164_number@sip.vapi.ai

and it will be accepted, as long as your call will conform to the SIP Challenge/Response workflow. If you still have issues, feel free to DM me for further discussion.

hey there, can you share the PCAP file?