[OpenSIPS-Users] B2B routing

[Anton Zagorskiy]

Hi Anca,

Thanks.






WBR, Anton Zagorskiy
VoIP Developer, Oyster Telecom
Phone.: +7 812 601-0666
Fax: +7 812 601-0593
a.zagorskiy at oyster-telecom.ru
www.oyster-telecom.ru



> -----Original Message-----
> From: users-bounces at lists.opensips.org [mailto:users-
> bounces at lists.opensips.org] On Behalf Of Anca Vamanu
> Sent: Monday, April 11, 2011 6:38 PM
> To: users at lists.opensips.org
> Subject: Re: [OpenSIPS-Users] B2B routing
> 
> Hi Anton,
> 
> 
> On 04/08/2011 03:51 PM, Anton Zagorskiy wrote:
> >
> > It seems that it happens when 2 BYEs received at same time, here is
> > call flow for BYEs (Leg1 is a leg between UA1 and OpenSIPS B2B, Leg2
> > is a leg between OpenSIPS B2B and UA2):
> >
> > 1.
> > Leg 1:  UA1 ->  (BYE)  ->  OpenSIPS ->  (BYE) ->  OpenSIPS B2B; Leg 2:
> > OpenSIPS B2B ->  (BYE) ->  UA2;
> >
> > 2.
> > Leg 2. UA2 ->  (BYE) ->  OpenSIPS B2B ->  (OK) ->  UA2;  Here started
> > OK reply through both legs, which is generated by OpenSIPS - is it
normal?
> >
> At these point the B2BUA considers the dialog closed - because BYE was
> received from both sides, and sends 200OK to both sides. After this, it
> deletes the call record.
> > 3.
> > Leg 1: OpenSIPS B2B ->  (OK) ->  OpenSIPS ->  (OK) ->  UA1;
> >
> > 4.
> > Leg 2: UA2 ->  (OK) ->  OpenSIPS B2B.
> >
> So at this point, the 200 OK will no longer have a match. So that error
> message that you see in the log is not important. Everything functions the
> way it has to.
> > So, I have two questions:
> > 1) OpenSIPS B2B generated OK reply for both legs - is it normal?
> > (dialog module isn't used)
> > 2) The reason of the ERROR message is the OK reply in a stage 4. Is
> > this UA2 bug?
> >
> >
> > Thanks!
> 
> Regards,
> 
> --
> Anca Vamanu
> OpenSIPS Developer
> 
> 
> 
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