[SR-Users] Record-route issue in Kamailio 3.0.3

[Ovidiu Sas]

The spec requires just lr.  There were some buggy clients that
couldn't do just lr and therefor lr=on was introduced.
If it works with lr, then don't enable lr=on (which is disabled by default):
modparam("rr", "enable_full_lr", 0)

http://www.kamailio.org/docs/modules/3.1.x/modules_k/rr.html#id2805457

Regards,
Ovidiu Sas

On Thu, Oct 14, 2010 at 12:19 PM, Morten Isaksen <misak at misak.dk> wrote:
> Hi,
>
> I was mistaken. This is not the problem. OCS kan handle r-r with multiple entry.
>
> This one works OK - The OCS sends a PRACK
>
> SIP/2.0 180 Ringing
> Via: SIP/2.0/TCP x.x.42.177:65371;rport=65371;branch=z9hG4bK991996e6
> From: <sip:+XXXXXX04963;ext=4963 at rpvocsmed01.rpdc.local;user=phone>;epid=E1A3C38520;tag=74504cfc7a
> To: <sip:+XXXXX07357 at sip.uni-tel.dk;user=phone>;tag=1c564710455
> Call-ID: 707d32ae-acaf-4c13-8117-f9b39c42f26e
> CSeq: 1429 INVITE
> Contact: <sip:1102 at x.x.248.56:5060>
> Record-Route: <sip:x.x.248.20;r2=on;lr;ftag=74504cfc7a>,<sip:x.x.248.20;transport=tcp;r2=on;lr;ftag=74504cfc7a>
> Supported: em,timer,replaces,path,early-session,resource-priority
> Allow: REGISTER,OPTIONS,INVITE,ACK,CANCEL,BYE,NOTIFY,PRACK,REFER,INFO,SUBSCRIBE,UPDATE
> Require: 100rel
> RSeq: 1
> Server: Audiocodes-Sip-Gateway-Mediant 2000/v.5.60A.035.002
> Content-Type: application/sdp
> Content-Length: 258
>
> v=0
> o=AudiocodesGW 564744967 564744627 IN IP4 x.x.248.56
> s=Phone-Call
> c=IN IP4 x.x.248.18
> t=0 0
> m=audio 62722 RTP/AVP 8 101
> c=IN IP4 178.21.248.18
> a=rtpmap:8 PCMA/8000
> a=rtpmap:101 telephone-event/8000
> a=fmtp:101 0-15
> a=ptime:20
> a=sendrecv
>
>
> But the OCS does not answer this. Could it be lr=on that triggers the
> problem? I do not have access to the OCS myself.
>
> SIP/2.0 180 Ringing
> Via: SIP/2.0/TCP x.x.42.177:65251;rport=65251;branch=z9hG4bK9a5a33df
> From: <sip:+XXXXX04960;ext=4960 at rpvocsmed01.rpdc.local;user=phone>;epid=E1A3C38520;tag=6f5e4da8ab
> To: <sip:+XXXX37043 at sip.uni-tel.dk;user=phone>;tag=1c11675351
> Call-ID: acf61479-f483-42d8-b5c0-be4feaf6dad7
> CSeq: 1412 INVITE
> Contact: <sip:1219 at x.x.248.56:5060>
> Record-Route: <sip:x.x.248.7;lr=on;ftag=6f5e4da8ab;did=5e1.cffb1006>,<sip:x.x.248.20;r2=on;lr;ftag=6f5e4da8ab>,<sip:x.x.248.20;transport=tcp;r2=on;lr;ftag=6f5e4da8ab>
> Supported: em,timer,replaces,path,early-session,resource-priority
> Allow: REGISTER,OPTIONS,INVITE,ACK,CANCEL,BYE,NOTIFY,PRACK,REFER,INFO,SUBSCRIBE,UPDATE
> Require: 100rel
> RSeq: 1
> Server: Audiocodes-Sip-Gateway-Mediant 2000/v.5.60A.035.002
> Content-Type: application/sdp
> Content-Length: 256
>
> v=0
> o=AudiocodesGW 11709683 11709345 IN IP4 178.21.248.56
> s=Phone-Call
> c=IN IP4 x.x.248.22
> t=0 0
> m=audio 63608 RTP/AVP 8 101
> c=IN IP4 x.x.248.22
> a=rtpmap:8 PCMA/8000
> a=rtpmap:101 telephone-event/8000
> a=fmtp:101 0-15
> a=ptime:20
> a=sendrecv
>
>
>
>
>
> On Thu, Oct 14, 2010 at 4:57 PM, Juha Heinanen <jh at tutpro.com> wrote:
>> Morten Isaksen writes:
>>
>>> When OpenSer sends the message to Kamailio the recourd-routes look like this:
>>>
>>> Record-Route: <sip:x.x.248.20;r2=on;lr;ftag=3d9e7d131b>
>>> Record-Route: <sip:x.x.248.20;transport=tcp;r2=on;lr;ftag=3d9e7d131b>
>>>
>>> But when the message comes back from Kamailio it is:
>>> Record-Route: <sip:x.x.248.7;lr=on;ftag=3d9e7d131b;did=584.1a683a45>,<sip:x.x.248.20;r2=on;lr;ftag=3d9e7d131b>,<sip:x.x.248.20;transport=tcp;r2=on;lr;ftag=3d9e7d131b>
>>>
>>> OpenSER forwards the message to the OCS with Record-route unchanged
>>> and the OCS gets confused and does not reply.
>>
>> then file a bug to ocs folks, because ocs should understand r-r header
>> that contains more than one entry.
>>
>> -- juha
>>
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>>
>
>
>
> --
> Morten Isaksen
>
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