[asterisk-dev] DTMF detection and generation code

[Eric "ManxPower" Wieling]

Vahan Yerkanian wrote:

> I think in the general case Asterisk has to forward the same DTMF 
> durations that it receives in one format to the other format. Many many 
> proprietary weird systems are tuned to accept specific DTMF durations, 
> and by Murphy's law, your next project involves such a system. So, it's 
> not uncommon for customer raising the question why "this new cool 
> system" cuts the tone duration to a defined length while he is still 
> keeping his finger on the button.

If this is the case then these applications will not work for calls from 
a cell phone.  These applications also will not work for calls from many 
larger PBXs.  I think Steve's problem is that he does not believe that 
anyone would write applications in such a way that they will not work 
with calls from cell phones.  I agree with him.