[Asterisk-Users] dtmfmode=inband but SDP also indicates rfc2833

[Martin Joseph]

On Jul 2, 2006, at 1:37 PM, Stagg Shelton wrote:

> I answered my own question.  My objective was reached with a simple  
> return statement on line 4384 of chan_sip.c in asterisk 1.2.9.1 ftp  
> download.  The effect that this has is that asterisk will return a  
> 200 OK that indicates in the SDP that only inband DTMF is  
> supported.  My carrier detects this and their NexTone Session  
> Switch sends out dtmf  inband.
>
> It sucks having to force asterisk to operate in this manner, but  
> hopefully asterisk implementation of rfc2833 will get the bugs  
> worked out, if they are in fact bugs, and not design desicions.


So a simple:

dtmfmode=inband

In the appropriate extension (your outbound call terminator) wasn't  
adequate to force the proper 200 OK message?  This doesn't seem like  
something you should need to change code to do?

Glad it's working anyhow, and thanks for sharing your hack.

Marty