[OpenSIPS-Users] b2b module issue with PRACK on multiple provisional responses

[Bogdan-Andrei Iancu]

Hi Giuseppe,

Try the attached patch and let me know if it does the trick for you.

Regards,

Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com

On 21.08.2014 12:30, Giuseppe Cardone wrote:
> Hi Bogdan,
>
> yes I do.
>
> I've copied the extract of the log with the processing of the 180 
> Ringing, just in case you need any more
> info.
>
> Kind regards,
> Giuseppe
>
>
> <stripped>
> ------------------------------------------------------------------------
>
>     *Da: *"Bogdan-Andrei Iancu" <bogdan at opensips.org>
>     *A: *"OpenSIPS users mailling list" <users at lists.opensips.org>,
>     "g.cardone at unidata.it >> Giuseppe Cardone" <g.cardone at unidata.it>
>     *Inviato: *Giovedì, 21 agosto 2014 10:35:17
>     *Oggetto: *Re: [OpenSIPS-Users] b2b module issue with PRACK on
>     multiple provisional responses
>
>     Hi Giuseppe,
>
>     Do you see in your logs any entries for "b2b_tm_cback" when the
>     180 is processed ?
>
>     Regards,
>
>     Bogdan-Andrei Iancu
>     OpenSIPS Founder and Developer
>     http://www.opensips-solutions.com
>
>     On 09.08.2014 19:39, Giuseppe Cardone wrote:
>
>         Hi,
>
>         I'm trying out the b2b module on opensips and have encountered
>         an issue regarding PRACK.
>
>         In particular I have a scenario where the called number
>         replies with a 183 session progress (Require: 100rel and RSeq:
>         1) and then a few seconds later with a 180 Ringing (Require:
>         100rel and RSeq: 2).
>
>         What happens is that opensips correctly replies with a PRACK
>         to the 183 response but then doesn't do the same when it
>         receives the 180 provisional response.
>
>         Excerpts from the logs show this happening when the 183
>         message is received:
>
>         Aug  9 17:31:14 [2528] DBG:b2b_entities:b2b_tm_cback: Found
>         require hdr
>         Aug  9 17:31:14 [2528] DBG:b2b_entities:b2b_tm_cback: Found
>         100rel header
>         Aug  9 17:31:14 [2528] DBG:b2b_entities:b2b_send_req: start type=1
>
>         but when the 180 response arrives, there are no similar entries.
>
>         It is my understanding that from a SIP signalling point of
>         view the b2b module should reply with a PRACK to the 180
>         response too or am I missing something ?
>
>         Any ideas as to why this may be happening or could it be a bug ?
>
>         Many thanks,
>         Giuseppe
>
>
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>         Users at lists.opensips.org
>         http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>
>
>

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