[asterisk-users] Incoming INVITE with Portability Info and LRN

[Trey Hilyard]

On Fri, Mar 18, 2016 at 10:49 AM Administrator TOOTAI <admin at tootai.net>
wrote:

> Le 18/03/2016 16:20, Trey Hilyard a écrit :
> > I am trying to set up my Asterisk server so that it will recognize an
> > incoming call to the Asterisk's own Location Routing Number (LRN),
> > validating the "rn" in the INVITE and then using the Called Number from
> > the INVITE as the extension in the dialplan.
> >
> > The INVITE R-URI looks like:
> > INVITE
> > sip:+19135041291;rn=+19136630000;npdi at 12.4.240.200
> :5060;user=phone;transport=udp
> > SIP/2.0
> >
> > The +1913663000 is the LRN of the Asterisk box, so I would want to have
> > the dialplan validate that the "rn" is that number. The +19136631291 is
> > the extension within the system that they are trying to reach, that
> > extension will vary, and will have an exten defined in the dialplan.
> >
> > I assume that this is just going to require that I do some matching and
> > substring-type variable replacement to hit a context with just the
> > Called Number part of the request, but I wondered if anyone had a
> > working example of this before I started putting too much effort into it.
>
> Use the SIP_HEADER function
>
> http://www.voip-info.org/wiki/view/Asterisk+func+sip_header


I am not sure that this is needed here. The Request URI has all of the
values that I need. I agree that I might need to CUT part of the R-URI, but
I don't need access to any other header to find the info I need.

When the call arrives at the Asterisk right now, this is the exten/context
that it is hitting, so it already has the info I need:
Executing [9135041291;rn=+19136630000;npdi at from_pstn:1]

As far as I can tell, I think that I just need to figure out how to make an
extension entry that matches on the "rn=+19136630000\;npdi" and then moves
to another context (or same one) with ${EXTEN,0,10}.

I just can't get that first extension to match on the RN value.



>
>
> --
> Daniel
>
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