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Glossary:Dual-Tone Multi Frequency

Also known as DTMF. A signaling system that sends pairs of audio frequencies to represent digits on a telephone keypad. Often, it is used interchangeably with the term Touchtone (an AT&T trademark).


For More Information

  • WebRTC
    In the Web Services and Applications 8.5.2 Web Services and Applications Configuration Guide
  • SendDTMF
    In the Web Services and Applications 8.5.2 Web Services API Reference


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This page was last modified on 18 November 2013, at 18:00.