[Asterisk-Users] dtmf for public telephony access

[Matteo Brancaleoni]

* hint : did you searched the ml first?
this has been discussed a lot, even little time ago...

however...
sure, just use oob dtmf like rfc2833 or sip info dtmf...
so you can use a low bitrate codec and asterisk
will generate them again when going to the pstn...

matteo

Il mer, 2004-04-14 alle 10:49, Alessio Focardi ha scritto:
> Hi,
> 
> I would like to have some remote users with sip phones over adsl
> connections access our asterisk pbx and make out calls, currently we
> are using a zaptel pri interface for outdialing.
> 
> What is the right way to manage dtmf over pstn lines and still retain
> low bandwith occupation ?
> 
> In other words:
> 
> if I use g729 (and sip info dtmf) for sip phones - asterisk communication
> will asterisk be able to regenerate real tones when going out to the
> pstn ?
> 
> Tnx for any help ... currently I havent got g729 licenses so I cant
> test it out by myself.
-- 
Matteo Brancaleoni
Espia System Administrator
Email : mbrancaleoni at espia.it
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