DTMF Dialer Coding Table National Semiconductor NS TP5088 Tone Dialer chip provides simple means DTMF generation and simple interfacing with uProcessor. (16-Sep-2005)---542
DTMF Tone Decoder This project displays telephone numbers decoded from tones. A microphone picks up the tones, a preamplifier boosts the signals, an SSI-202 DTMF chip decodes the tones, a Basic Stamp acts as an interface to an LCD display and also provides \"RS-232\" (16-Sep-2005)---395
