[sr-dev] [kamailio/kamailio] CSeq issues with CANCEL after INVITE (#918)

greggcz notifications at github.com
Wed Jan 11 23:04:55 CET 2017


Now the CSeq is correct, however I do see repeated CANCELs and 487s from the peer just as in https://github.com/kamailio/kamailio/issues/870 This means that it does cancel the call and these extra messages back and forth do not cause any end-user side effects:

#
U x.x.x.50:5060 -> 85.14.79.130:6050
INVITE sip:48732406302 at provider.server:6050 SIP/2.0.
Record-Route: <sip:x.x.x.50;lr=on;ftag=1966e51d;did=394.3881>.
Via: SIP/2.0/UDP x.x.x.50;branch=z9hG4bK7c47.6ccd00e1473454bee7f723fc9772a737.0.
Via: SIP/2.0/UDP x.x.x.61:52163;rport=52163;branch=z9hG4bK-d8754z-61867e46d5fd912d-1---d8754z-.
Max-Forwards: 69.
Contact: <sip:48221028008 at x.x.x.61:52163;transport=UDP>.
To: <sip:48732406302 at x.x.x.50;transport=UDP>.
From: <sip:48221028008 at x.x.x.50;transport=UDP>;tag=1966e51d.
Call-ID: NDY0MjJlYjNmNTMwMzQ1MjFiZjZlZTQyMTU0MTVjZTc..
CSeq: 2 INVITE.
Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, MESSAGE, OPTIONS, INFO, SUBSCRIBE.
Content-Type: application/sdp.
Supported: replaces, norefersub, extended-refer, timer, X-cisco-serviceuri.
Allow-Events: presence, kpml.
Content-Length: 239.
.
v=0.
o=Z 0 0 IN IP4 x.x.x.61.
s=Z.
c=IN IP4 x.x.x.61.
t=0 0.
m=audio 8000 RTP/AVP 3 110 8 0 98 101.
a=rtpmap:110 speex/8000.
a=rtpmap:98 iLBC/8000.
a=fmtp:98 mode=20.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-15.
a=sendrecv.

#
U 85.14.79.130:6050 -> x.x.x.50:5060
SIP/2.0 407 Proxy Authentication Required.
Via: SIP/2.0/UDP x.x.x.50;branch=z9hG4bK7c47.6ccd00e1473454bee7f723fc9772a737.0;received=x.x.x.50.
Via: SIP/2.0/UDP x.x.x.61:52163;rport=52163;branch=z9hG4bK-d8754z-61867e46d5fd912d-1---d8754z-.
From: <sip:48221028008 at x.x.x.50;transport=UDP>;tag=1966e51d.
To: <sip:48732406302 at x.x.x.50;transport=UDP>;tag=as209509cf.
Call-ID: NDY0MjJlYjNmNTMwMzQ1MjFiZjZlZTQyMTU0MTVjZTc..
CSeq: 2 INVITE.
User-Agent: Adescom CTM5000.
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO.
Max-Forwards: 70.
Proxy-Authenticate: Digest realm="adescom", nonce="4d5a9b94".
Content-Length: 0.
.

#
U x.x.x.50:5060 -> 85.14.79.130:6050
ACK sip:48732406302 at provider.server:6050 SIP/2.0.
Via: SIP/2.0/UDP x.x.x.50;branch=z9hG4bK7c47.6ccd00e1473454bee7f723fc9772a737.0.
Max-Forwards: 69.
To: <sip:48732406302 at x.x.x.50;transport=UDP>;tag=as209509cf.
From: <sip:48221028008 at x.x.x.50;transport=UDP>;tag=1966e51d.
Call-ID: NDY0MjJlYjNmNTMwMzQ1MjFiZjZlZTQyMTU0MTVjZTc..
CSeq: 2 ACK.
Content-Length: 0.
.

#
U x.x.x.50:5060 -> 85.14.79.130:6050
INVITE sip:48732406302 at provider.server:6050 SIP/2.0.
Record-Route: <sip:x.x.x.50;lr=on;ftag=1966e51d;did=394.3881>.
Via: SIP/2.0/UDP x.x.x.50;branch=z9hG4bK7c47.6ccd00e1473454bee7f723fc9772a737.1.cs2.
Via: SIP/2.0/UDP x.x.x.61:52163;rport=52163;branch=z9hG4bK-d8754z-61867e46d5fd912d-1---d8754z-.
Max-Forwards: 69.
Contact: <sip:48221028008 at x.x.x.61:52163;transport=UDP>.
To: <sip:48732406302 at x.x.x.50;transport=UDP>.
From: <sip:48221028008 at x.x.x.50;transport=UDP>;tag=1966e51d.
Call-ID: NDY0MjJlYjNmNTMwMzQ1MjFiZjZlZTQyMTU0MTVjZTc..
CSeq: 3 INVITE.
Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, MESSAGE, OPTIONS, INFO, SUBSCRIBE.
Content-Type: application/sdp.
Supported: replaces, norefersub, extended-refer, timer, X-cisco-serviceuri.
Allow-Events: presence, kpml.
Content-Length: 239.
Proxy-Authorization: Digest username="USER", realm="adescom", nonce="4d5a9b94", uri="sip:48732406302 at provider.server:6050", response="5e7395307812b7c47418bfde0d4262bf", algorithm=MD5.
.
v=0.
o=Z 0 0 IN IP4 x.x.x.61.
s=Z.
c=IN IP4 x.x.x.61.
t=0 0.
m=audio 8000 RTP/AVP 3 110 8 0 98 101.
a=rtpmap:110 speex/8000.
a=rtpmap:98 iLBC/8000.
a=fmtp:98 mode=20.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-15.
a=sendrecv.

#
U 85.14.79.130:6050 -> x.x.x.50:5060
SIP/2.0 100 Trying.
Via: SIP/2.0/UDP x.x.x.50;branch=z9hG4bK7c47.6ccd00e1473454bee7f723fc9772a737.1.cs2;received=x.x.x.50.
Via: SIP/2.0/UDP x.x.x.61:52163;rport=52163;branch=z9hG4bK-d8754z-61867e46d5fd912d-1---d8754z-.
From: <sip:48221028008 at x.x.x.50;transport=UDP>;tag=1966e51d.
To: <sip:48732406302 at x.x.x.50;transport=UDP>.
Call-ID: NDY0MjJlYjNmNTMwMzQ1MjFiZjZlZTQyMTU0MTVjZTc..
CSeq: 3 INVITE.
User-Agent: Adescom CTM5000.
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO.
Max-Forwards: 70.
Contact: <sip:48732406302 at 85.14.79.130:6050>.
Content-Length: 0.
X-CTMG-HangupCause: Normal Clearing.
.

#
U 85.14.79.130:6050 -> x.x.x.50:5060
SIP/2.0 183 Session Progress.
Via: SIP/2.0/UDP x.x.x.50;branch=z9hG4bK7c47.6ccd00e1473454bee7f723fc9772a737.1.cs2;received=x.x.x.50.
Via: SIP/2.0/UDP x.x.x.61:52163;rport=52163;branch=z9hG4bK-d8754z-61867e46d5fd912d-1---d8754z-.
From: <sip:48221028008 at x.x.x.50;transport=UDP>;tag=1966e51d.
To: <sip:48732406302 at x.x.x.50;transport=UDP>;tag=as72708a91.
Call-ID: NDY0MjJlYjNmNTMwMzQ1MjFiZjZlZTQyMTU0MTVjZTc..
CSeq: 3 INVITE.
User-Agent: Adescom CTM5000.
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO.
Max-Forwards: 70.
Contact: <sip:48732406302 at 85.14.79.130:6050>.
Content-Type: application/sdp.
Content-Length: 226.
.
v=0.
o=root 7839 7839 IN IP4 85.14.79.130.
s=session.
c=IN IP4 85.14.79.130.
t=0 0.
m=audio 54604 RTP/AVP 8 101.
a=rtpmap:8 PCMA/8000.
a=ptime:20.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-16.
a=silenceSupp:off - - - -.

#
U x.x.x.50:5060 -> 85.14.79.130:6050
CANCEL sip:48732406302 at provider.server:6050 SIP/2.0.
Via: SIP/2.0/UDP x.x.x.50;branch=z9hG4bK7c47.6ccd00e1473454bee7f723fc9772a737.1.cs2.
Max-Forwards: 69.
To: <sip:48732406302 at x.x.x.50;transport=UDP>.
From: <sip:48221028008 at x.x.x.50;transport=UDP>;tag=1966e51d.
Call-ID: NDY0MjJlYjNmNTMwMzQ1MjFiZjZlZTQyMTU0MTVjZTc..
CSeq: 3 CANCEL.
Content-Length: 0.
.

#
U 85.14.79.130:6050 -> x.x.x.50:5060
SIP/2.0 487 Request Terminated.
Via: SIP/2.0/UDP x.x.x.50;branch=z9hG4bK7c47.6ccd00e1473454bee7f723fc9772a737.1.cs2;received=x.x.x.50.
Via: SIP/2.0/UDP x.x.x.61:52163;rport=52163;branch=z9hG4bK-d8754z-61867e46d5fd912d-1---d8754z-.
From: <sip:48221028008 at x.x.x.50;transport=UDP>;tag=1966e51d.
To: <sip:48732406302 at x.x.x.50;transport=UDP>;tag=as72708a91.
Call-ID: NDY0MjJlYjNmNTMwMzQ1MjFiZjZlZTQyMTU0MTVjZTc..
CSeq: 3 INVITE.
User-Agent: Adescom CTM5000.
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO.
Max-Forwards: 70.
Content-Length: 0.
X-CTMG-HangupCause: Normal Clearing.
Reason: Q.850 ;cause=16 ;text="Normal Clearing".
.

#
U 85.14.79.130:6050 -> x.x.x.50:5060
SIP/2.0 200 OK.
Via: SIP/2.0/UDP x.x.x.50;branch=z9hG4bK7c47.6ccd00e1473454bee7f723fc9772a737.1.cs2;received=x.x.x.50.
From: <sip:48221028008 at x.x.x.50;transport=UDP>;tag=1966e51d.
To: <sip:48732406302 at x.x.x.50;transport=UDP>;tag=as72708a91.
Call-ID: NDY0MjJlYjNmNTMwMzQ1MjFiZjZlZTQyMTU0MTVjZTc..
CSeq: 3 CANCEL.
User-Agent: Adescom CTM5000.
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO.
Max-Forwards: 70.
Content-Length: 0.
X-CTMG-HangupCause: Normal Clearing.
.

#
U x.x.x.50:5060 -> 85.14.79.130:6050
ACK sip:48732406302 at provider.server:6050 SIP/2.0.
Via: SIP/2.0/UDP x.x.x.50;branch=z9hG4bK7c47.6ccd00e1473454bee7f723fc9772a737.1.cs2.
Max-Forwards: 69.
To: <sip:48732406302 at x.x.x.50;transport=UDP>;tag=as72708a91.
From: <sip:48221028008 at x.x.x.50;transport=UDP>;tag=1966e51d.
Call-ID: NDY0MjJlYjNmNTMwMzQ1MjFiZjZlZTQyMTU0MTVjZTc..
CSeq: 3 ACK.
Content-Length: 0.
.

#
U x.x.x.50:5060 -> 85.14.79.130:6050
CANCEL sip:48732406302 at provider.server:6050 SIP/2.0.
Via: SIP/2.0/UDP x.x.x.50;branch=z9hG4bK7c47.6ccd00e1473454bee7f723fc9772a737.1.cs2.
Max-Forwards: 69.
To: <sip:48732406302 at x.x.x.50;transport=UDP>.
From: <sip:48221028008 at x.x.x.50;transport=UDP>;tag=1966e51d.
Call-ID: NDY0MjJlYjNmNTMwMzQ1MjFiZjZlZTQyMTU0MTVjZTc..
CSeq: 3 CANCEL.
Content-Length: 0.
.

#
U 85.14.79.130:6050 -> x.x.x.50:5060
SIP/2.0 481 Call Leg Does Not Exist.
Via: SIP/2.0/UDP x.x.x.50;branch=z9hG4bK7c47.6ccd00e1473454bee7f723fc9772a737.1.cs2;received=x.x.x.50.
From: <sip:48221028008 at x.x.x.50;transport=UDP>;tag=1966e51d.
To: <sip:48732406302 at x.x.x.50;transport=UDP>;tag=as0575a12b.
Call-ID: NDY0MjJlYjNmNTMwMzQ1MjFiZjZlZTQyMTU0MTVjZTc..
CSeq: 3 CANCEL.
User-Agent: Adescom CTM5000.
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO.
Max-Forwards: 70.
Content-Length: 0.
.

#
U x.x.x.50:5060 -> 85.14.79.130:6050
CANCEL sip:48732406302 at provider.server:6050 SIP/2.0.
Via: SIP/2.0/UDP x.x.x.50;branch=z9hG4bK7c47.6ccd00e1473454bee7f723fc9772a737.1.cs2.
Max-Forwards: 69.
To: <sip:48732406302 at x.x.x.50;transport=UDP>.
From: <sip:48221028008 at x.x.x.50;transport=UDP>;tag=1966e51d.
Call-ID: NDY0MjJlYjNmNTMwMzQ1MjFiZjZlZTQyMTU0MTVjZTc..
CSeq: 3 CANCEL.
Content-Length: 0.
.

#
U 85.14.79.130:6050 -> x.x.x.50:5060
SIP/2.0 481 Call Leg Does Not Exist.
Via: SIP/2.0/UDP x.x.x.50;branch=z9hG4bK7c47.6ccd00e1473454bee7f723fc9772a737.1.cs2;received=x.x.x.50.
From: <sip:48221028008 at x.x.x.50;transport=UDP>;tag=1966e51d.
To: <sip:48732406302 at x.x.x.50;transport=UDP>;tag=as6b28014f.
Call-ID: NDY0MjJlYjNmNTMwMzQ1MjFiZjZlZTQyMTU0MTVjZTc..
CSeq: 3 CANCEL.
User-Agent: Adescom CTM5000.
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO.
Max-Forwards: 70.
Content-Length: 0.
.

#
U x.x.x.50:5060 -> 85.14.79.130:6050
CANCEL sip:48732406302 at provider.server:6050 SIP/2.0.
Via: SIP/2.0/UDP x.x.x.50;branch=z9hG4bK7c47.6ccd00e1473454bee7f723fc9772a737.1.cs2.
Max-Forwards: 69.
To: <sip:48732406302 at x.x.x.50;transport=UDP>.
From: <sip:48221028008 at x.x.x.50;transport=UDP>;tag=1966e51d.
Call-ID: NDY0MjJlYjNmNTMwMzQ1MjFiZjZlZTQyMTU0MTVjZTc..
CSeq: 3 CANCEL.
Content-Length: 0.
.

#
U 85.14.79.130:6050 -> x.x.x.50:5060
SIP/2.0 481 Call Leg Does Not Exist.
Via: SIP/2.0/UDP x.x.x.50;branch=z9hG4bK7c47.6ccd00e1473454bee7f723fc9772a737.1.cs2;received=x.x.x.50.
From: <sip:48221028008 at x.x.x.50;transport=UDP>;tag=1966e51d.
To: <sip:48732406302 at x.x.x.50;transport=UDP>;tag=as52cb54b1.
Call-ID: NDY0MjJlYjNmNTMwMzQ1MjFiZjZlZTQyMTU0MTVjZTc..
CSeq: 3 CANCEL.
User-Agent: Adescom CTM5000.
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO.
Max-Forwards: 70.
Content-Length: 0.
.





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