Definition of touch-tone in English:

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touch-tone

adjective

(Of a telephone) having push-buttons and generating tones to dial rather than pulses.
Example sentences
  • Back in the 1940s, when the area code system was designed, there was no such thing as a touch-tone phone - all telephones operated via rotary dialing pulse operation.
  • By combining the input of a caller with tailor made scripts, IVR systems allow callers to call into a company or IVR hosting company using a touch-tone telephone, and then to interact with the system in real time.
  • The ability to play back voice sessions from any touch-tone telephone is a very important feature.

noun

trademark
1A touch-tone telephone.
1.1A tone generated by a touch-tone telephone.
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