The Care and Feeding of ISDN4BSD
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12.5 Available Scripts 12 Setting up the 12.7 300 Baud Soft-Modem

12.6 DTMF Decoding

As of version 0.71 there is a program available (contributed by Poul-Henning Kamp) which will decode DTMF tones in an audio data stream called dtmfdecode(8).

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Hellmuth Michaelis 2001-08-16