> From: PAUL B <paul@G0TTS.DEMON.CO.UK>
>
> Hi i was wondering what the current score is with the DTMF decoder
> design i followed part of the thread but then had mail problems , is
> there a working bit of code to play with ???
> --
> PAUL B
>

Paul, the code is available from:

http://www.ormix.riga.lv/eng/mchip/mchip.htm - PIC page
ftp://ftp.ormix.riga.lv/mchip/sources/dtmf_dec.zip
ftp://ftp.ormix.riga.lv/mchip/sources/dtmf_cod.zip

(Thanks to Alexej Vladimirov  avlad@mail.ormix.riga.lv)

Note that the decoder is not entirely satisfactory with respect to
the 'standards', but works if the tones last for over 150ms.

Regards,
SJH