Re: DTMF && linux (was: Re: Ring-Detect and PPP)

Eugene Anikin (anikin@cdac.com)
Tue, 16 Jun 1998 09:48:50 -0700 (PDT)

> Peter-Paul wrote:
> ok. that's what i want too. but i'd like the caller to touch in a proper
> dtmf sequence (numeric password) to prove authentification.
>
> how can i decode dtmf sequences with linux?
>
> (isdn or modem)?

This is not a kernel issue. DTMF detection is done by the voice-modem
hardware and passed through the serial interface to a user-level
program. Search for vgetty or spk, they can do what you want for a voice
modem. I believe that S.U.S.E distribution has something similar for
ISDN.

Eugene.

-- 
Eugene Anikin                 http://www.anikin.ddns.org/
anikin@cdac.com               anikin@anikin.ddns.org


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