[OpenSIPS-Users] Reroute B2B call after failure

[duane.larson at gmail.com]

Actually I guess I could just do the following

On the OpenSIPSProxy use the uac_replace_to() and change the domain to be  
the Primary Gateway and then if it fails I can use the uac_replace_to() and  
set the domain to the backup. And then on the OpenSIPSB2BUA look at the To  
domain and use that to set my $rd. I will have to test it out but that  
sounds like it would work.

On , duane.larson at gmail.com wrote:
> On the OpenSIPSProxy script in order to pass the call to OpenSIPSB2BUA I  
> set the $rd variable to the OpenSIPSB2BUA IP address. So what variable do  
> I need to set on the OpenSIPSProxy before sending it to the OpenSIPSB2BUA  
> so that the B2BUA server will know to send it to the Backup Gateway? I  
> thought the $rd already set the RURI domain?



> On , Ovidiu Sas osas at voipembedded.com> wrote:
> > If you want to use opensips in b2b mode and still have failover, you
> >
> > will need to use two instances of opensips:
> >
> > - one in b2b mode,
> >
> > - one in proxy mode and doing the failover.
> >
> > It seems that you already have the setup, so all that you need to do
> >
> > on the proxy (on the failure case) is to send the INVITE back to the
> >
> > OpenSIPSB2BUA with RURI pointing to the Backup SIP Gateway B,
> >
> >
> >
> >
> >
> > Regards,
> >
> > Ovidiu Sas
> >
> >
> >
> > On Mon, May 16, 2011 at 10:04 PM, duane.larson at gmail.com> wrote:
> >
> > > I have the following setup
> >
> > >
> >
> > >
> >
> > > ----- Primary SIP Gateway A XXX.XXX.XXX.XXX
> >
> > > Phones OpenSIPSProxy OpenSIPSB2BUA SIP Trunk Provider |
> >
> > > ----- Backup SIP Gateway B YYY.YYY.YYY.YYY
> >
> > >
> >
> > > So my SIP trunk provider (Bandwidth.com) provided me with two  
> gateways to
> >
> > > send my calls to (One is the primary and the other is the backup in  
> case the
> >
> > > first doesn't work). I am trying to figure out how I can set up the
> >
> > > OpenSIPSB2BUA so that if the first gateway is down the call will  
> timeout and
> >
> > > send the call to the Backup Gateway. Normally this would be easy but  
> since
> >
> > > the call is being executed with the b2b_init_request() function I  
> can't set
> >
> > > a failure route and then when the first call to the Primary Gateway  
> fails
> >
> > > set my $rd to the Backup gateway and call b2b_init_request() since
> >
> > > b2b_init_request() can only be executed on the initial INVITE.
> >
> > >
> >
> > >
> >
> > > Has anyone run into this scenario yet? Anyone have any ideas on a  
> possible
> >
> > > solution?
> >
> > >
> >
> > > If the OpenSIPSB2BUA can't do anything with the timeout then it will  
> need to
> >
> > > fail back to the OpenSIPSProxy, but I am not sure what I can do on the
> >
> > > OpenSIPSProxy since all he does is set $rd to the IP Address of
> >
> > > OpenSIPSB2BUA and t_relay() it.
> >
> > > _______________________________________________
> >
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> >
> > > Users at lists.opensips.org
> >
> > > http://lists.opensips.org/cgi-bin/mailman/listinfo/users
> >
> > >
> >
> > >
> >
> >
> >
> > _______________________________________________
> >
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> >
> > Users at lists.opensips.org
> >
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> >
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