[OpenSIPS-Users] Opensips is responding (SIP/2.0 503 No destination available) to a CANCEL request.

[Julien Chavanton]

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:15141234567 at 1.1.1.1:5060;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:15141234567 at 1.1.1.1:5060>
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:222928023587914 at 3.3.3.3>;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:22215141234567 at 3.3.3.3:5060
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:15141234567 at 1.1.1.1:5060;user=phone SIP/2.0
Via: SIP/2.0/UDP 2.2.2.2:5060;branch=z9hG4bK264faa44a34bd197c0-66c25-0
Max-Forwards: 69
To: <sip:15141234567 at 1.1.1.1:5060>
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:15141234567 at 1.1.1.1:5060>;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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