[SR-Users] question on TM transaction matching

Kelvin Chua kelchy at gmail.com
Thu Apr 19 09:47:27 CEST 2018 

*here is an ngrep of the working one*

U 2018/04/19 05:31:31.112392 a.b.c.d:6060 -> a.b.c.d:5090
INVITE sip:408 at a.b.c.d:6060;transport=UDP SIP/2.0.
Record-Route: <sip:a.b.c.d:6060;lr;ftag=d75e236e;nat=yes>.
Via: SIP/2.0/UDP
a.b.c.d:6060;branch=z9hG4bK638a.ebce2b6669d2c54149bcc613c89d6510.1.
Via: SIP/2.0/UDP
w.x.y.z:34439;received=w.x.y.z;branch=z9hG4bK-524287-1---4c57b6fa8ff74676;rport=34439.
Max-Forwards: 70.
Contact: <sip:kelvin at w.x.y.z:34439;transport=UDP;alias=w.x.y.z~34439~1>.
To: <sip:408 at a.b.c.d:6060;transport=UDP>.
From: <sip:kelvin at a.b.c.d:6060;transport=UDP>;tag=d75e236e.
Call-ID: 7O090_g-Ndh_I22Zi5ZOhQ...
P-Called-Identity: 408.
CSeq: 2 INVITE.
Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, MESSAGE, OPTIONS, INFO,
SUBSCRIBE.
Content-Type: application/sdp.
Proxy-Authorization: Digest username="kelvin",realm="domain.com
",nonce="3861e6cdaf8a44cce98721e3c8dda428",uri="sip:408 at a.b.c.d
:6060;transport=UDP",response="b7a365bd35650736c45d2048d924ea0b",cnonce="492da67adf4a5853f0aa012c2fa5a757",nc=00000001,qop=auth,algorithm=MD5.
User-Agent: Zoiper rv2.8.87-mod.
Allow-Events: presence, kpml, talk.
Content-Length: 255.
P-Called-Party-ID: <sip:408 at a.b.c.d:6060;transport=UDP>.
.
v=0.
o=Zoiper 0 0 IN IP4 a.b.c.d.
s=Zoiper.
c=IN IP4 a.b.c.d.
t=0 0.
m=audio 19592 RTP/AVP 3 101 0 8.
a=rtpmap:3 GSM/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-16.
a=rtpmap:0 PCMU/8000.
a=rtpmap:8 PCMA/8000.
a=sendrecv.
a=rtcp:19593.


U 2018/04/19 05:31:31.180853 a.b.c.d:5090 -> a.b.c.d:6060
SIP/2.0 100 Trying.
Via: SIP/2.0/UDP
a.b.c.d:6060;branch=z9hG4bK638a.ebce2b6669d2c54149bcc613c89d6510.1.
Via: SIP/2.0/UDP
w.x.y.z:34439;received=w.x.y.z;branch=z9hG4bK-524287-1---4c57b6fa8ff74676;rport=34439.
To: <sip:408 at a.b.c.d:6060;transport=UDP>.
From: <sip:kelvin at a.b.c.d:6060;transport=UDP>;tag=d75e236e.
Call-ID: 7O090_g-Ndh_I22Zi5ZOhQ...
CSeq: 2 INVITE.
Server: kamailio (5.1.2 (x86_64/linux)).
Content-Length: 0.
.


U 2018/04/19 05:31:35.134023 a.b.c.d:5090 -> a.b.c.d:6060
SIP/2.0 183 Session Progress.
Via: SIP/2.0/UDP
a.b.c.d:6060;branch=z9hG4bK638a.ebce2b6669d2c54149bcc613c89d6510.1.
Via: SIP/2.0/UDP
w.x.y.z:34439;received=w.x.y.z;branch=z9hG4bK-524287-1---4c57b6fa8ff74676;rport=34439.
Record-Route:
<sip:a.b.c.d:5090;lr=on;ftag=d75e236e;did=208.b272;ReIn=true>,<sip:a.b.c.d:6060;lr;ftag=d75e236e;nat=yes>.
From: <sip:kelvin at a.b.c.d:6060;transport=UDP>;tag=d75e236e.
To: <sip:408 at a.b.c.d:6060;transport=UDP>;tag=r5eFv3QrQD71H.
Call-ID: 7O090_g-Ndh_I22Zi5ZOhQ...
CSeq: 2 INVITE.
Contact: <sip:e.f.g.h;did=2082.1aaa8341>.
User-Agent: SIP.
Accept: application/sdp.
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER,
REFER, NOTIFY.
Supported: timer, path, replaces.
Allow-Events: talk, hold, conference, refer.
Content-Type: application/sdp.
Content-Disposition: session.
Content-Length: 222.
.
v=0.
o=UAC 23521 12211 IN IP4 23.29.25.68.
s=SIP Media Capabilities.
c=IN IP4 23.29.25.74.
t=0 0.
m=audio 25694 RTP/AVP 0 101.
a=rtpmap:0 PCMU/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-15.
a=maxptime:20.


U 2018/04/19 05:31:35.134763 a.b.c.d:6060 -> w.x.y.z:34439
SIP/2.0 183 Session Progress.
Via: SIP/2.0/UDP
w.x.y.z:34439;received=w.x.y.z;branch=z9hG4bK-524287-1---4c57b6fa8ff74676;rport=34439.
Record-Route:
<sip:a.b.c.d:5090;lr=on;ftag=d75e236e;did=208.b272;ReIn=true>,<sip:a.b.c.d:6060;lr;ftag=d75e236e;nat=yes>.
From: <sip:kelvin at a.b.c.d:6060;transport=UDP>;tag=d75e236e.
To: <sip:408 at a.b.c.d:6060;transport=UDP>;tag=r5eFv3QrQD71H.
Call-ID: 7O090_g-Ndh_I22Zi5ZOhQ...
CSeq: 2 INVITE.
Contact: <sip:e.f.g.h;did=2082.1aaa8341>.
User-Agent: SIP.
Accept: application/sdp.
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER,
REFER, NOTIFY.
Supported: timer, path, replaces.
Allow-Events: talk, hold, conference, refer.
Content-Type: application/sdp.
Content-Disposition: session.
Content-Length: 250.
.
v=0.
o=UAC 23521 12211 IN IP4 a.b.c.d.
s=SIP Media Capabilities.
c=IN IP4 a.b.c.d.
t=0 0.
m=audio 19610 RTP/AVP 0 101.
a=rtpmap:0 PCMU/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-15.
a=maxptime:20.
a=sendrecv.
a=rtcp:19611.


U 2018/04/19 05:31:36.054719 w.x.y.z:34439 -> a.b.c.d:6060
CANCEL sip:408 at a.b.c.d:6060;transport=UDP SIP/2.0.
Via: SIP/2.0/UDP
w.x.y.z:34439;branch=z9hG4bK-524287-1---4c57b6fa8ff74676;rport.
Max-Forwards: 70.
To: <sip:408 at a.b.c.d:6060;transport=UDP>.
From: <sip:kelvin at a.b.c.d:6060;transport=UDP>;tag=d75e236e.
Call-ID: 7O090_g-Ndh_I22Zi5ZOhQ...
CSeq: 2 CANCEL.
Proxy-Authorization: Digest username="kelvin",realm="domain.com
",nonce="3861e6cdaf8a44cce98721e3c8dda428",uri="sip:408 at a.b.c.d
:6060;transport=UDP",response="8cace32bdff1bc61974d61c8a56238dd",cnonce="030abc48cc862c50cf8bd3d0e61844f3",nc=00000002,qop=auth,algorithm=MD5.
User-Agent: Zoiper rv2.8.87-mod.
Content-Length: 0.
.


U 2018/04/19 05:31:36.055183 a.b.c.d:6060 -> a.b.c.d:5090
CANCEL sip:408 at a.b.c.d:6060;transport=UDP SIP/2.0.
Via: SIP/2.0/UDP
a.b.c.d:6060;branch=z9hG4bK638a.ebce2b6669d2c54149bcc613c89d6510.1.
Max-Forwards: 70.
To: <sip:408 at a.b.c.d:6060;transport=UDP>.
From: <sip:kelvin at a.b.c.d:6060;transport=UDP>;tag=d75e236e.
Call-ID: 7O090_g-Ndh_I22Zi5ZOhQ...
CSeq: 2 CANCEL.
Content-Length: 0.
.


U 2018/04/19 05:31:36.055259 a.b.c.d:6060 -> w.x.y.z:34439
SIP/2.0 200 canceling.
Via: SIP/2.0/UDP
w.x.y.z:34439;branch=z9hG4bK-524287-1---4c57b6fa8ff74676;rport=34439;received=w.x.y.z.
To: <sip:408 at a.b.c.d
:6060;transport=UDP>;tag=f072ba6a4747058fd2933a88d05e31a8-77fc.
From: <sip:kelvin at a.b.c.d:6060;transport=UDP>;tag=d75e236e.
Call-ID: 7O090_g-Ndh_I22Zi5ZOhQ...
CSeq: 2 CANCEL.
Server: Sipsurge Overlord/1.0.0.
Content-Length: 0.
.


U 2018/04/19 05:31:36.055443 a.b.c.d:5090 -> a.b.c.d:6060
SIP/2.0 200 canceling.
Via: SIP/2.0/UDP
a.b.c.d:6060;branch=z9hG4bK638a.ebce2b6669d2c54149bcc613c89d6510.1.
To: <sip:408 at a.b.c.d
:6060;transport=UDP>;tag=886d45488eeb4821dd4d3b48f2349838-53f2.
From: <sip:kelvin at a.b.c.d:6060;transport=UDP>;tag=d75e236e.
Call-ID: 7O090_g-Ndh_I22Zi5ZOhQ...
CSeq: 2 CANCEL.
Server: kamailio (5.1.2 (x86_64/linux)).
Content-Length: 0.
.


U 2018/04/19 05:31:36.059120 a.b.c.d:5090 -> a.b.c.d:6060
SIP/2.0 487 Request Terminated.
Via: SIP/2.0/UDP
a.b.c.d:6060;branch=z9hG4bK638a.ebce2b6669d2c54149bcc613c89d6510.1.
Via: SIP/2.0/UDP
w.x.y.z:34439;received=w.x.y.z;branch=z9hG4bK-524287-1---4c57b6fa8ff74676;rport=34439.
To: <sip:408 at a.b.c.d
:6060;transport=UDP>;tag=886d45488eeb4821dd4d3b48f2349838-53f2.
From: <sip:kelvin at a.b.c.d:6060;transport=UDP>;tag=d75e236e.
Call-ID: 7O090_g-Ndh_I22Zi5ZOhQ...
CSeq: 2 INVITE.
Server: kamailio (5.1.2 (x86_64/linux)).
Content-Length: 0.
.


U 2018/04/19 05:31:36.059306 a.b.c.d:6060 -> a.b.c.d:5090
ACK sip:408 at a.b.c.d:6060;transport=UDP SIP/2.0.
Via: SIP/2.0/UDP
a.b.c.d:6060;branch=z9hG4bK638a.ebce2b6669d2c54149bcc613c89d6510.1.
Max-Forwards: 70.
To: <sip:408 at a.b.c.d
:6060;transport=UDP>;tag=886d45488eeb4821dd4d3b48f2349838-53f2.
From: <sip:kelvin at a.b.c.d:6060;transport=UDP>;tag=d75e236e.
Call-ID: 7O090_g-Ndh_I22Zi5ZOhQ...
CSeq: 2 ACK.
Content-Length: 0.
.


U 2018/04/19 05:31:36.060030 a.b.c.d:6060 -> w.x.y.z:34439
SIP/2.0 487 Request Terminated.
Via: SIP/2.0/UDP
w.x.y.z:34439;received=w.x.y.z;branch=z9hG4bK-524287-1---4c57b6fa8ff74676;rport=34439.
To: <sip:408 at a.b.c.d
:6060;transport=UDP>;tag=886d45488eeb4821dd4d3b48f2349838-53f2.
From: <sip:kelvin at a.b.c.d:6060;transport=UDP>;tag=d75e236e.
Call-ID: 7O090_g-Ndh_I22Zi5ZOhQ...
CSeq: 2 INVITE.
Server: kamailio (5.1.2 (x86_64/linux)).
Content-Length: 0.
.


U 2018/04/19 05:31:36.262168 w.x.y.z:34439 -> a.b.c.d:6060
ACK sip:408 at a.b.c.d:6060;transport=UDP SIP/2.0.
Via: SIP/2.0/UDP
w.x.y.z:34439;branch=z9hG4bK-524287-1---4c57b6fa8ff74676;rport.
Max-Forwards: 70.
To: <sip:408 at a.b.c.d
:6060;transport=UDP>;tag=886d45488eeb4821dd4d3b48f2349838-53f2.
From: <sip:kelvin at a.b.c.d:6060;transport=UDP>;tag=d75e236e.
Call-ID: 7O090_g-Ndh_I22Zi5ZOhQ...
CSeq: 2 ACK.
Content-Length: 0.
.



*and then ngrep of the non-matching one*

U 2018/04/19 04:39:43.137832 a.b.c.d:6060 -> a.b.c.d:5090
INVITE sip:408 at a.b.c.d:6060;transport=UDP SIP/2.0.
Record-Route: <sip:a.b.c.d:6060;lr;ftag=88ab0030;nat=yes>.
Via: SIP/2.0/UDP
a.b.c.d:6060;branch=z9hG4bKcd06.5537814be9e2ae1fe1f60daf1fb39e03.1.
Via: SIP/2.0/UDP
w.x.y.z:44308;received=w.x.y.z;branch=z9hG4bK-524287-1---bac673a0af203e10;rport=44308.
Max-Forwards: 70.
Contact: <sip:kelvin at w.x.y.z:44308;transport=UDP;alias=w.x.y.z~44308~1>.
To: <sip:408 at a.b.c.d:6060;transport=UDP>.
From: <sip:kelvin at a.b.c.d:6060;transport=UDP>;tag=88ab0030.
Call-ID: qXQ2PEtXgehz4CQYo2ryLg...
P-Called-Identity: 408.
CSeq: 2 INVITE.
Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, MESSAGE, OPTIONS, INFO,
SUBSCRIBE.
Content-Type: application/sdp.
Proxy-Authorization: Digest username="kelvin",realm="domain.com
",nonce="815682331c7aaddbff9a28548d875652",uri="sip:408 at a.b.c.d
:6060;transport=UDP",response="c5147959ff30db5eb9d38fb7ec796a68",cnonce="3496cd726af47c79a4725f83f74c7d98",nc=00000001,qop=auth,algorithm=MD5.
User-Agent: Zoiper rv2.8.87-mod.
Allow-Events: presence, kpml, talk.
Content-Length: 255.
P-Called-Party-ID: <sip:408 at a.b.c.d:6060;transport=UDP>.
.
v=0.
o=Zoiper 0 0 IN IP4 a.b.c.d.
s=Zoiper.
c=IN IP4 a.b.c.d.
t=0 0.
m=audio 19554 RTP/AVP 3 101 0 8.
a=rtpmap:3 GSM/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-16.
a=rtpmap:0 PCMU/8000.
a=rtpmap:8 PCMA/8000.
a=sendrecv.
a=rtcp:19555.


U 2018/04/19 04:39:43.202106 a.b.c.d:5090 -> a.b.c.d:6060
SIP/2.0 100 Trying.
Via: SIP/2.0/UDP
a.b.c.d:6060;branch=z9hG4bKcd06.5537814be9e2ae1fe1f60daf1fb39e03.1.
Via: SIP/2.0/UDP
w.x.y.z:44308;received=w.x.y.z;branch=z9hG4bK-524287-1---bac673a0af203e10;rport=44308.
To: <sip:408 at a.b.c.d:6060;transport=UDP>.
From: <sip:kelvin at a.b.c.d:6060;transport=UDP>;tag=88ab0030.
Call-ID: qXQ2PEtXgehz4CQYo2ryLg...
CSeq: 2 INVITE.
Server: kamailio (5.1.2 (x86_64/linux)).
Content-Length: 0.
.


U 2018/04/19 04:39:47.400412 a.b.c.d:5090 -> a.b.c.d:6060
SIP/2.0 183 Session Progress.
Via: SIP/2.0/UDP
a.b.c.d:6060;branch=z9hG4bKcd06.5537814be9e2ae1fe1f60daf1fb39e03.1.
Via: SIP/2.0/UDP
w.x.y.z:44308;received=w.x.y.z;branch=z9hG4bK-524287-1---bac673a0af203e10;rport=44308.
Record-Route:
<sip:a.b.c.d:5090;lr=on;ftag=88ab0030;did=8a.f2c2;ReIn=true>,<sip:a.b.c.d:6060;lr;ftag=88ab0030;nat=yes>.
From: <sip:kelvin at a.b.c.d:6060;transport=UDP>;tag=88ab0030.
To: <sip:408 at a.b.c.d:6060;transport=UDP>;tag=cp1SQvQ6SNSaH.
Call-ID: qXQ2PEtXgehz4CQYo2ryLg...
CSeq: 2 INVITE.
Contact: <sip:e.f.g.h;did=8a06.2a2c6204>.
User-Agent: SIP.
Accept: application/sdp.
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER,
REFER, NOTIFY.
Supported: timer, path, replaces.
Allow-Events: talk, hold, conference, refer.
Content-Type: application/sdp.
Content-Disposition: session.
Content-Length: 221.
.
v=0.
o=UAC 7006 20280 IN IP4 23.29.21.84.
s=SIP Media Capabilities.
c=IN IP4 23.29.21.91.
t=0 0.
m=audio 27104 RTP/AVP 0 101.
a=rtpmap:0 PCMU/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-15.
a=maxptime:20.


U 2018/04/19 04:39:47.401210 a.b.c.d:6060 -> w.x.y.z:44308
SIP/2.0 183 Session Progress.
Via: SIP/2.0/UDP
w.x.y.z:44308;received=w.x.y.z;branch=z9hG4bK-524287-1---bac673a0af203e10;rport=44308.
Record-Route:
<sip:a.b.c.d:5090;lr=on;ftag=88ab0030;did=8a.f2c2;ReIn=true>,<sip:a.b.c.d:6060;lr;ftag=88ab0030;nat=yes>.
From: <sip:kelvin at a.b.c.d:6060;transport=UDP>;tag=88ab0030.
To: <sip:408 at a.b.c.d:6060;transport=UDP>;tag=cp1SQvQ6SNSaH.
Call-ID: qXQ2PEtXgehz4CQYo2ryLg...
CSeq: 2 INVITE.
Contact: <sip:e.f.g.h;did=8a06.2a2c6204>.
User-Agent: SIP.
Accept: application/sdp.
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER,
REFER, NOTIFY.
Supported: timer, path, replaces.
Allow-Events: talk, hold, conference, refer.
Content-Type: application/sdp.
Content-Disposition: session.
Content-Length: 249.
.
v=0.
o=UAC 7006 20280 IN IP4 a.b.c.d.
s=SIP Media Capabilities.
c=IN IP4 a.b.c.d.
t=0 0.
m=audio 19576 RTP/AVP 0 101.
a=rtpmap:0 PCMU/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-15.
a=maxptime:20.
a=sendrecv.
a=rtcp:19577.


U 2018/04/19 04:39:49.552641 w.x.y.z:44308 -> a.b.c.d:6060
CANCEL sip:408 at a.b.c.d:6060;transport=UDP SIP/2.0.
Via: SIP/2.0/UDP
w.x.y.z:44308;branch=z9hG4bK-524287-1---bac673a0af203e10;rport.
Max-Forwards: 70.
To: <sip:408 at a.b.c.d:6060;transport=UDP>.
From: <sip:kelvin at a.b.c.d:6060;transport=UDP>;tag=88ab0030.
Call-ID: qXQ2PEtXgehz4CQYo2ryLg...
CSeq: 2 CANCEL.
Proxy-Authorization: Digest username="kelvin",realm="domain.com
",nonce="815682331c7aaddbff9a28548d875652",uri="sip:408 at a.b.c.d
:6060;transport=UDP",response="3e161bd546cdd5e8876cb48ffdfaeea0",cnonce="d1ca4c1b6e427869e795f7da457b3eef",nc=00000002,qop=auth,algorithm=MD5.
User-Agent: Zoiper rv2.8.87-mod.
Content-Length: 0.
.


U 2018/04/19 04:39:50.050153 w.x.y.z:44308 -> a.b.c.d:6060
CANCEL sip:408 at a.b.c.d:6060;transport=UDP SIP/2.0.
Via: SIP/2.0/UDP
w.x.y.z:44308;branch=z9hG4bK-524287-1---bac673a0af203e10;rport.
Max-Forwards: 70.
To: <sip:408 at a.b.c.d:6060;transport=UDP>.
From: <sip:kelvin at a.b.c.d:6060;transport=UDP>;tag=88ab0030.
Call-ID: qXQ2PEtXgehz4CQYo2ryLg...
CSeq: 2 CANCEL.
Proxy-Authorization: Digest username="kelvin",realm="domain.com
",nonce="815682331c7aaddbff9a28548d875652",uri="sip:408 at a.b.c.d
:6060;transport=UDP",response="3e161bd546cdd5e8876cb48ffdfaeea0",cnonce="d1ca4c1b6e427869e795f7da457b3eef",nc=00000002,qop=auth,algorithm=MD5.
User-Agent: Zoiper rv2.8.87-mod.
Content-Length: 0.
.


U 2018/04/19 04:39:51.048945 w.x.y.z:44308 -> a.b.c.d:6060
CANCEL sip:408 at a.b.c.d:6060;transport=UDP SIP/2.0.
Via: SIP/2.0/UDP
w.x.y.z:44308;branch=z9hG4bK-524287-1---bac673a0af203e10;rport.
Max-Forwards: 70.
To: <sip:408 at a.b.c.d:6060;transport=UDP>.
From: <sip:kelvin at a.b.c.d:6060;transport=UDP>;tag=88ab0030.
Call-ID: qXQ2PEtXgehz4CQYo2ryLg...
CSeq: 2 CANCEL.
Proxy-Authorization: Digest username="kelvin",realm="domain.com
",nonce="815682331c7aaddbff9a28548d875652",uri="sip:408 at a.b.c.d
:6060;transport=UDP",response="3e161bd546cdd5e8876cb48ffdfaeea0",cnonce="d1ca4c1b6e427869e795f7da457b3eef",nc=00000002,qop=auth,algorithm=MD5.
User-Agent: Zoiper rv2.8.87-mod.
Content-Length: 0.
.


U 2018/04/19 04:39:53.049231 w.x.y.z:44308 -> a.b.c.d:6060
CANCEL sip:408 at a.b.c.d:6060;transport=UDP SIP/2.0.
Via: SIP/2.0/UDP
w.x.y.z:44308;branch=z9hG4bK-524287-1---bac673a0af203e10;rport.
Max-Forwards: 70.
To: <sip:408 at a.b.c.d:6060;transport=UDP>.
From: <sip:kelvin at a.b.c.d:6060;transport=UDP>;tag=88ab0030.
Call-ID: qXQ2PEtXgehz4CQYo2ryLg...
CSeq: 2 CANCEL.
Proxy-Authorization: Digest username="kelvin",realm="domain.com
",nonce="815682331c7aaddbff9a28548d875652",uri="sip:408 at a.b.c.d
:6060;transport=UDP",response="3e161bd546cdd5e8876cb48ffdfaeea0",cnonce="d1ca4c1b6e427869e795f7da457b3eef",nc=00000002,qop=auth,algorithm=MD5.
User-Agent: Zoiper rv2.8.87-mod.
Content-Length: 0.
.




Kelvin Chua

On Wed, Apr 18, 2018 at 11:22 PM, Daniel-Constantin Mierla <
miconda at gmail.com> wrote:

> Hello,
>
> do you have a pcap with all messages for such call (invite, replies,
> cancel)? It is important to see if the transaction matching elements are
> properly set.
>
> In general, the rule for cancel is to be sent in the same way (with the
> same elements) as the invite, because cancel is not a standalone
> transaction, it must match the associated invite one.
> Cheers,
> Daniel
>
>
> On 18.04.18 16:59, Kelvin Chua wrote:
>
> after couple of tests, it is still hit and miss, sometimes it matches,
> sometimes it does not.
>
> On Wed, Apr 18, 2018, 6:47 PM Kelvin Chua <kelchy at gmail.com> wrote:
>
>> thanks alex, will test this out further but looks good at the moment
>> any idea why it is not matching when RURI has the port if i only use
>> t_check_trans() and relay?
>>
>> Kelvin Chua
>>
>> On Wed, Apr 18, 2018 at 3:44 PM, Alex Balashov <abalashov at evaristesys.com
>> > wrote:
>>
>>> Try this instead:
>>>
>>>    route {
>>>       ...
>>>
>>>       t_check_trans();
>>>
>>>       ...
>>>
>>>       if(is_method("CANCEL")) {
>>>          if(!t_relay_cancel())
>>>             sl_send_reply("500", "Internal Server Error");
>>>
>>>          exit;
>>>       }
>>>    }
>>>
>>> -- Alex
>>>
>>> --
>>> Alex Balashov | Principal | Evariste Systems LLC
>>>
>>> Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free)
>>> Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
>>>
>>> _______________________________________________
>>> Kamailio (SER) - Users Mailing List
>>> sr-users at lists.kamailio.org
>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>>
>>
>>
>
> _______________________________________________
> Kamailio (SER) - Users Mailing Listsr-users at lists.kamailio.orghttps://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>
>
> --
> Daniel-Constantin Mierlawww.twitter.com/miconda -- www.linkedin.com/in/miconda
> Kamailio Advanced Training - April 16-18, 2018, Berlin - www.asipto.com
> Kamailio World Conference - May 14-16, 2018 - www.kamailioworld.com
>
>
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