[Asterisk-Users] DTMF inband detection improvement

[Steve Underwood]

Hi Peter,

If that is true, someone must have broken something. Not only does the 
DTMF detector I wrote not care about small imperfections, it even 
tolerates a dropped packet with the DTMF passes over a VoIP path (this 
kind of tolerance was added a couple of years ago).

Regards,
Steve


Peter Svensson wrote:

>We have some problems with dtmf detection on our lines. We use E1 pris
>connected to a TE405P. Mostly we see duplicated digits. Unless the signal 
>is perfect and distortion free Asterisk sees the small imperfections as 
>the end of the digit.
>
>We can provoke this problem from some of our office phones (when on 
>speaker phone). Asterisk is more or less the only place we see this 
>problem.
>
>Peter
>  
>