Hello, I'm looking for some advice on a response from a SIP termination provider. They send us the 200 OK below, and we send them the ACK.
They say that our ACK is invalid because it's R-URI should contain "+11234567...@cc.cc.13.45:5060" rather than "+11234567...@bb.bb.224.202:5060". Presumably they say that because what they want is in the Contact header in their 200 OK. My questions are: a) Should the R-URI be changed on a reply? (as opposed to a new dialog) b) Doesn't the loose routing (lr in the record-route for bb.bb.224.202) mean that the R-URI shouldn't be changed anyway? Thanks in advance for any help. Received from provider address bb.bb.224.202: SIP/2.0 200 OK. Via: SIP/2.0/UDP aa.aa.13.240;branch=z9hG4bK02ee.83d31f591682ebd45da194d341fa23f9.0. Via: SIP/2.0/UDP aa.aa.13.195:5060;rport=5060;branch=z9hG4bK4bcb23fc. From: <sip:+12345678...@aa.aa.13.195>;tag=as1514f3e7. To: <sip:+11234567...@ot.provider.com:5060>;tag=gK00d4fe47. Call-ID: xxx. CSeq: 102 INVITE. Record-Route: <sip:bb.bb.224.202:5060;lr;ftag=as1514f3e7>. Record-Route: <sip:aa.aa.13.240:5060;lr=on>. Accept: application/sdp. Contact: <sip:+11234567...@cc.cc.13.45:5060>. Allow: INVITE,ACK,CANCEL,BYE,PRACK,OPTIONS. Content-Length: 244. Content-Disposition: session; handling=required. Content-Type: application/sdp. . v=0. o=Sonus_UAC 188128247 152711770 IN IP4 cc.cc.13.45. s=SIP Media Capabilities. c=IN IP4 cc.cc.13.72. t=0 0. m=audio 43276 RTP/AVP 0 101. a=rtpmap:0 PCMU/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-15. a=sendrecv. a=maxptime:20. Sent to provider address bb.bb.224.202: ACK sip:+11234567...@bb.bb.224.202:5060 Via: SIP/2.0/UDP aa.aa.13.240;branch=z9hG4bKa205.5b9b58c0e9cb82ab7edf866d7b03a805.0 Via: SIP/2.0/UDP aa.aa.13.194:5060;rport=5060;branch=z9hG4bK45d24b48 Route: <sip:bb.bb.224.202:5060;lr;ftag=as2e95ab82> Max-Forwards: 69 From: <sip:+12345678...@aa.aa.13.194>;tag=as2e95ab82 To: <sip:+11234567...@ot.provider.com:5060>;tag=gK08a9c7fd Contact: <sip:+12345678...@aa.aa.13.194:5060> Call-ID: xxx CSeq: 102 ACK User-Agent: XXX Content-Length: 0 -- David Cunningham, Voisonics http://voisonics.com/ USA: +1 213 221 1092 UK: +44 (0) 20 3298 1642 Australia: +61 (0) 2 8063 9019 _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
