[Asterisk-Dev] Re: Codecs G729 and G723.1

[Sudhir Kumar]

I was thinking about specifying

  sip.conf:
     .....
     allow=g729
     allow=g723.1
     ....

in the SIP.conf file. For normal scenario, i.e calls between 2
extensions or calls from an extension to PSTN, g729 will be used. In the
extensions file, I just change part where I am terminating on the H323
server to:

   extensions.conf:
      ....
      exten => _01191.,1,setvar(SIP_CODEC=g723.1)
      exten => _01191.,2,Dial(H323/${EXTEN:3}@ipaddress)
      ....

So that for calls starting with 01191.. g723.1 is picked which will go
through in pass-through.

For some reason, setvar has no effect. Is there any other way of picking
up the codec for the calling party depending on the called number?

Thanks,
-- sudhir


      
> From: "Brian K. West" <brian at bkw.org>
> To: <asterisk-dev at lists.digium.com>
> Subject: Re: [Asterisk-Dev] Codecs G729 and G723.1
> Date: Wed, 23 Jun 2004 14:53:59 -0500
> Reply-To: asterisk-dev at lists.digium.com
> 
> You have to be able to transcode from g729 to g723.1 and you can't sine you
> don't have the codec.
> 
> bkw
> 
> ----- Original Message ----- 
> From: "Sudhir Kumar" <sudhir1 at adelphia.net>
> To: <asterisk-dev at lists.digium.com>
> Sent: Wednesday, June 23, 2004 10:58 AM
> Subject: [Asterisk-Dev] Codecs G729 and G723.1
> 
> 
> > We have an asterisk PBX with G729 licenses. For all internal calls and
> > termination to PSTN, G729 is used. For our international calls, we were
> > trying to hook up with company whose gateway does H323, G723.1 only. As
> > asterisk supports G723.1 in pass through mode, I thought we should be
> > able to do that.Here is the problem I am facing.
> >
> > If specify codecs in the order,
> >         allow=g729
> > allow=g723.1
> >
> > Then I can make PSTN calls fine. However, CANNOT make international
> > calls due to codec mismatch.
> >
> > If I change the order to
> > allow=g723.1
> > allow=g729
> >
> > Then I a can make international calls, however CANNOT make calls to
> > PSTN.
> >
> > Is there a way out of this?
> >
> > Thanks,
> > -- sudhir
> >