Hi, I am trying to find wy Opensips is responding (SIP/2.0 503 No destination available) to a CANCEL request.
UA1(1.1.1.1) -> P1(2.2.2.2) -> UA2(3.3.3.3) UA1(1.1.1.1) -> P1(2.2.2.2) INVITE sip:[email protected]:5060;user=phone SIP/2.0 Via: SIP/2.0/UDP 2.2.2.2:5060;branch=z9hG4bK264faa44a34bd197c0-66c25-0 Max-Forwards: 69 Contact: <sip:2.2.2.2:5060> To: <sip:[email protected]:5060> From: <sip:2.2.2.2:5060>;tag=39e771ca-co4209-INS026 Call-ID: 12345678 CSeq: 420901 INVITE Content-Type: application/sdp Date: Fri, 23 Apr 2010 12:51:12 GMT Supported: 100rel User-Agent: ENSR2.5.47.9-IS26-RMRG20056-RG106565-CPO6500 Content-Length: 282 P1(2.2.2.2) -> UA1(1.1.1.1) SIP/2.0 183 Session Progress To: "22215141234567" <sip:[email protected]>;tag=1190663040 Via: SIP/2.0/UDP 2.2.2.2:5060;branch=z9hG4bK264faa44a34bd197c0-66c25-0 From: <sip:2.2.2.2:5060>;tag=39e771ca-co4209-INS026 Call-ID: 12345678 CSeq: 420901 INVITE Record-Route: <sip:1.1.1.1;lr> Contact: sip:[email protected]:5060 Max-Forwards: 70 Content-Type: application/sdp Content-Length: 186 P-hint: Route[6]: mediaproxy UA1(1.1.1.1) -> P1(2.2.2.2) CANCEL sip:[email protected]:5060;user=phone SIP/2.0 Via: SIP/2.0/UDP 2.2.2.2:5060;branch=z9hG4bK264faa44a34bd197c0-66c25-0 Max-Forwards: 69 To: <sip:[email protected]:5060> From: <sip:2.2.2.2:5060>;tag=39e771ca-co4209-INS026 Call-ID: 12345678 CSeq: 420901 CANCEL User-Agent: ENSR2.5.47.9-IS26-RMRG106565-RG106565-CPO6500 Content-Length: 0 P1(2.2.2.2) -> UA1(1.1.1.1) SIP/2.0 503 No destination available Via: SIP/2.0/UDP 2.2.2.2:5060;branch=z9hG4bK264faa44a34bd197c0-66c25-0 To: <sip:[email protected]:5060>;tag=97b561d891fabb5de05c82496d3a199a.a955 From: <sip:2.2.2.2:5060>;tag=39e771ca-co4209-INS026 Call-ID: 12345678 CSeq: 420901 CANCEL Server: OpenSIPS (1.5.1-notls (x86_64/linux)) Content-Length: 0
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