Hi guys, We’re seeing an issue where the initial INVITE → 200 OK from LiveKit SIP contains correct SDP with the external IP, but the next SIP message in the same dialog (re-INVITE or the 200 OK to it) is received by our SIP provider without a c= IP line in the SDP. We are using LiveKit SIP with use_external_ip: true . Has anyone encountered LiveKit SIP omitting the SDP connection address in mid-dialog messages? I can share the pcap if required. Thanks

Do you have a call ID that demonstrates the issue you are having? I would like to see the PCAP

Please check the attached, Hope this help understand the issue. Thanks

Hmm, I am a little confused by that PCAP. Why are the @IP in the private address space? Is this self-hosted or in LiveKit cloud?

This is self-hosted LiveKit, not LiveKit Cloud. The SIP is connected to the telco provider over a private network, so it use private IPs (192.168.x.x). The provider SBC is reachable directly on this private link, which is why those addresses appear in the PCAP.

I see. This channel is for LiveKit cloud. If you are self hosting it is best to ask in #C07FVFL1H3P there you and others in the community should help support eachother.