[OpenSIPS-Users] loose routing question

[Robert Dyck]

As an aside, there are Asterisk machines out there that do not follow the 
rules. Specifically they will alter their route set according to R-R received 
in-dialog. This usually does not cause a problem because most UA's repeat 
their R-R in the in-dialog request. Twinkle as one example however does not 
send R-R with the in-dialog request. Asterisk will then create a null route 
set. Asterisk was patched I believe about a year ago for this problem but 
service providers are slow to upgrade. I eventually gave up badgering one 
service provider.

On Wednesday 04 March 2009, Bogdan-Andrei Iancu wrote:
> Hi Brett,
>
> As Inaki said, the Route header has priority over the Contact in
> building the route set. You can check the Admin Course:
>
>     http://www.voice-sistem.ro/downloads/2007.08.29-Admin-Course/
>
> section 02 - routing. I put there a detailed description of  SIP routing
> (and how RR works). If the archive contains only PDF file (with no
> animation), just let me know and I can provide the PPT files.
>
> Regards,
> Bogdan
>
> Brett Nemeroff wrote:
> > Question...
> >
> > In general the receipient of an INVITE should respond to that invite
> > to the address in the contact header, right?
> >
> > What if there is a record-route header? That should prevail, right?
> >
> > I'm having a problem that with a single provider, some (not all) calls
> > they don't send the BYE from the FAR side of the call back via me,
> > instead it goes direct to the originator.
> >
> > Example:
> >
> > My customer places a call to me. I send to my provider. Provider sends
> > it to destination.
> >
> > Destination hangs up, BYE goes to my customer instead of me.. My
> > INVITE to my provider DOES have a record-route header init.
> >
> > Originally, this problem began because my customer would reinvite the
> > call right after the call was established and the re-invite, because
> > it was in-dialog wouldn't get record routed.
> >
> > So I moved my record-route block to before my loose route block.  Now,
> > sometimes I get byes.. I'm not sure what I'm doing wrong.. any ideas?
> > -Brett
> >
> > ------------------------------------------------------------------------
> >
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