On 11/9/06, Erick Perez <[EMAIL PROTECTED]> wrote:
> On 11/9/06, Kristian Kielhofner <[EMAIL PROTECTED]> wrote:
> > Erick Perez wrote:
> > >>
> > >
> > >
> > > then why the slin conversion?
> > > isn't it required when asterisk hears DTMF tones and act acordingly in
> > > the voicemail?
> > > same for IVR?
> > >
> > >
> >
> >        Asterisk only needs to process audio streams for DTMF tones (and
> > transcode) when the DTMF is inband, which is not possible with g729 (or
> > any other codec besides ulaw/alaw).  If you are using IAX, the DTMF is
> > never inband.  If you are using SIP rfc2833, the DTMF tones are
> > transported in the RTP stream separate from the audio as separate
> > events, which Asterisk can process while not being able to transcode the
> > audio stream.  If you are using SIP INFO, it uses SIP signaling and has
> > nothing to do with the audio at all. :)
> >
> >        Either way, you don't need to transcode to process DTMF.
> >
> > --
> > Kristian Kielhofner
> > _______________________________________________
> > Astlinux-users mailing list
> > [email protected]
> > http://lists.kriscompanies.com/mailman/listinfo/astlinux-users
> >
> > Donations to support AstLinux are graciously accepted via PayPal to [EMAIL 
> > PROTECTED]
> >
>
> I have 35 sip hardphones in g729, my voicemail in g729, my ivr in g729
> my moh in g729, only 8 zap channels and 3 sip voip providers in g729.
>
> hehehe I have payed digium for g729 licences when it wasn't needed..  ;))
> (seems like 8 licences were needed instead of 43)
>
> thanks Kristian,
> --
> ------------------------------------------------------------
> Erick Perez
> Panama Sistemas
> Integradores de Telefonia IP y Soluciones Para Centros de Datos
> Panama, Republica de Panama
> Cel Panama. +(507) 6694-4780
> ------------------------------------------------------------
>

I said no in the past due to this:
http://www.voip-info.org/wiki/index.php?page=Asterisk+G.729+pass-thru
it says that voicemail will not work, so i didn't bother to try.

-- 
------------------------------------------------------------
Erick Perez
Panama Sistemas
Integradores de Telefonia IP y Soluciones Para Centros de Datos
Panama, Republica de Panama
Cel Panama. +(507) 6694-4780
------------------------------------------------------------
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