I have a UAC sending an ACK for a 200OK (re-INVITE) to a proxy that never gets to the UAS, this is what the ACK looks like:
ACK sip:1000@10.69.69.70:5061 SIP/2.0 Via: SIP/2.0/UDP 10.10.10.11:5068;branch=z08346hjn From: <sip:1234567890@10.10.10.11>;tag=dfhgq23 To: "1000" <sip:1000@10.69.69.69>;tag=8068c88736ec Call-ID: 0917235h CSeq: 2 ACK Max-Forwards: 70 User-Agent: Rev Content-Length: 0 10.69.69.70 in the R-URI is the UAS 10.69.69.69 in the TO header is the proxy 10.10.10.11 in the VIA/FROM is the UAC The ACK goes to the proxy and goes no further, so the 200 OK from the UAS keeps re-transmitting until the call drops. I'm trying to determine if the formatting for the ACK is incorrect or not. The original re-INVITE does have route headers, the ACK above as you see, does not. I appreciate any insight you can provide. If there's additional information I can provide, please let me know. _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
