I'm calling through a telnyx number and getting this error: call.in-progress.error-sip-telephony-provider-failed-to-connect-call. How can I fix it? https://cdn.discordapp.com/attachments/1403479791184777386/1403479791440494602/11.png?ex=6897b3e9&is=68966269&hm=d23cffdc6b9351f98cf08b9d0a800c7a7a828db86cc5382824d2e6ab5b067497&

Match vapi SIP settings to your working Telnyx config, whitelist bapi IPs 44.229.228.186 and 44.238.177.138, ensure INVITEs reach Telnyx, and verify caller ID, outbound profile, and authentication settings in Telnyx..

could you tell me in which section I can do this?

Add your Telnyx SIP trunk via API → POST /credential with resolved IP and auth details, then in Telnyx whitelist Vapi IPs, set the phone number’s Translated Number to your SIP username, and configure outbound caller ID, voice profile, and authentication in SIP Trunk settings..