On Tue, 9 Sep 1997, Alex Melven wrote:

>  Hello all!
>
>  There is so much examples of DTMF encoding! Could enybody give me an
> example of DTMF decoding. I need it very much. I will decode it using
> ADC of 16c73.

        Well, it's just a pair of tones, so you should just be able to do
a FFT to get those tones out of the incoming signal.

        Pierce Nichols