[Asterisk-Users] route call based on codec? (g723 gets message, g729 goes to conf connection)

[Giovanni Miano]

If u are using 1.2 there is global var SIP_CODEC or IAX_CODE

exten => 88,1,NoOP(${SIP_CODEC})
exten => 88,2,NoOP(${IAX_CODEC})

Try

29 Nov 2005 15:41:38 -0500, jonc <jonc at ftnc.net>:
> I have a rather curious integration problem. I need to direct a call
> connection based on the codec used for the connection.
>
> If my softswitch attaches to the Asterisk server using G729 I toss the
> connection into a requested conference - that works fine.
>
> On occasion my softswitch will attach to the Asterisk server using G723
> (and request joining a conference that is using G729). When that happens
> I need to feed the connection a stock announcement (recorded in G723)
> and then hang up.
>
> Is there a way to direct a call based on the codec used to attach to the
> Asterisk server?
>
> ====
>
> More detail for those scratching their heads...
>
> I'm using Asterisk servers to augment my Vocal Data softswitch. One of
> the many things that Asterisk does for me is act as a conference bridge.
> This works just dandy except that my softswitch uses the conference
> bridge to transcode Voicemail announcements.
>
> My Softswitch automagically transcodes all announcements into G711,
> G723, and G729. Whenever someone records a voicemail announcement the VM
> server opens a conference using each of the codecs - plays the
> announcement in G729 (our default) and then records on the other
> connections.
>
> Obviously the G723 connection does not work since Asterisk won't
> transcode G723. That's cool. We don't *ever* use G723 - it's just built
> into the softswitch.
>
> The problem comes with the fact that the softswitch won't give up on
> doing the transcoding to G723. It continues to try and try and try and
> try... There is nothing dumber than a machine doing a task it can never
> finish. Unless its a machine opening hundereds of connections to my
> conferencing bridge trying to do a task it can never complete.
>
> I need to feed it something - anything - in a G723 format. I've got
> plenty of G723 audio files. If I can simply play one to the g723
> connection then it will be happy and go away. ;-)
>
> Any help is appreciated. Thanks - Jon Carnes
>
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--
Giovanni Miano