[asterisk-users] inband DTMF for g729

[Joshua Colp]

Andres wrote:
>>
>>
>> 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 .
>>  
>>
> 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.
> 

I'll chime in since nobody has yet corrected this... it's 
dtmfmode=rfc2833 not dtmf=rfc2833


-- 
Joshua Colp
Software Developer
Digium, Inc. - "The Genuine Asterisk Experience" (TM)