[asterisk-users] inband DTMF for g729

[Andres]

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>I can connect to Asterisk IVR using a SIP phone and send RFC2833 with g729. 
>It works fine. But when test call from PSTN to Asterisk, if I set dtmf=auto 
>with g729, I got warning saying something like  * does not support inband 
>for g729 and sutomaticlly switch to rfc2833.  If I set dtmf=g729, there is 
>no warning but I have the same problem. This tells me that Level3 does use 
>inband for g729 or maybe I am doing something wrong .
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You are doing something wrong.  Nobody uses inband DTMF for G729 because 
it does not work.  Do a sip debug to make sure your sip.conf entry with 
the dtmf=rfc2833 is being used.

>Gary 
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