Dual Tone Multi Frequency
<communications> (DTMF, or "touch-tone") A method used by the telephone
system to communicate the keys pressed when dialling. Pressing a key on the
phone's keypad generates two simultaneous tones, one for the row and one for the
column. These are decoded by the exchange to determine which key was pressed.
(1995-03-28)
Nearby terms:
Dual In-Line Package « dual ported « dual-stack «
Dual Tone Multi Frequency » duck typing » DUEL »
Duff's device
|
