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
------------------------------------------------------------
_______________________________________________
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]

Reply via email to