Designating or of a type of telephone that may be used with a service (touch tone) that responds to individual fixed electronic tones activated by corresponding buttons pushed in placing a call.
The dialing technology in an analog telephone. Each digit has a physical button that transmits a different audio tone when depressed. Known as the dual-tone multifrequency (DTMF) system, the signal is a combination of the row and column frequencies of the digit key.The first touch-tone phones were installed in two Pennsylvania towns in the early 1960s. Digital phones do not use the Touch-Tone system. Contrast with rotary dial. See analog phone and digital phone.
A telephone with buttons that produce tones, one for each digit.
A teleconference service for touch-tones only.
A tone produced by such a telephone.
Software to decode touch-tones.
Origin of touch-tone
- From the trade name Touch-Tone, 1960.