I'm trying to connect VAPI to my SIP trunk in Twilio. I'm running into the above error

call.in-progress.error-providerfault-outbound-sip-403-forbidden

while testing the outbound calling functionality. Inbound is working fine. Here is what i've done so far on the Twilio side: - Created a SIP trunk in Twilio AU1 region - Created a Termination URI - Allowed IP ranges 0.0.0.0/1 and 128.0.0.0/1. This should allow all ips to send messages to the trunk (for debugging purposes, to rule out the allowlist as the issue) - Moved phone numbers to Elastic SIP Trunk On the Vapi side: - I've added the SIP Trunk Credential. It seems that using the full URI is currently not working, so I ran dig to get the IPs - (54.172.60.3, 54.172.60.1, 54.172.60.2, 54.172.60.0) and added each of these. I also enabled leading plus for Outbound" - I then added the phone number using the BYO SIP Trunk Number option, using the SIP Trunk Credential I then test by making a call to a local Australian number "+61 XXX XXX XXX". In the dashboard I see

call.in-progress.error-providerfault-outbound-sip-403-forbidden

. Would I be able to get the detailed logs for a couple of call ids? 52d8a5a7-36b5-48f5-977b-99b475c8c721 7fac134a-09f6-4b45-8a47-80f4edda880d 3d18e7a6-6185-4039-acc9-94a892ab46d0 Thanks 🙂

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