dual tone

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• Dual-tone multi-frequency — (DTMF) signaling is used for telephone signaling over the line in the voice frequency band to the call switching center. The version of DTMF used for telephone tone dialing is known by the trademarked term Touch Tone (canceled March 13, 1984),… …   Wikipedia

• Dual-tone multi-frequency signaling — One of the few production telephone DTMF keypads with all 16 keys, from an Autovon Telephone. The column of red keys produces the A, B, C, and D DTMF events. Dual tone multi frequency signaling (DTMF) is used for telecommunication signaling over… …   Wikipedia

• Dual Tone Multi-Frequency — Codes DTMF Les codes DTMF (dual tone multi frequency) sont les combinaisons de fréquences utilisées pour la téléphonie moderne (en opposition aux téléphones dits à impulsions). Ces codes sont utilisés pour la composition des numéros de téléphones …   Wikipédia en Français

• dual-tone multifrequency (DTMF) signaling —    Sometimes called touch tone, a signaling method that uses specific pairs of frequencies within the voiceband for signals. One tone in each pair is chosen from a group of four low frequencies, and the other tone is selected from a group of four …   IT glossary of terms, acronyms and abbreviations

• Dual Tone Multi Frequency — allocation of a unique tone to each button on an appliance (made up of two frequencies high and low) that allows a computer to recognize the tone (DTMF) …   English contemporary dictionary

• dual-tone horn — See two tone horn …   Dictionary of automotive terms

• dual-tone multifrequency dial —    See dial …   IT glossary of terms, acronyms and abbreviations

• Tone — may refer to: MusicTheory* Pitch (music), the perceived frequency of a note or sound (see also pure tone) * Note, the name of a pitch * Whole tone, or major second, a commonly occurring musical interval * Timbre, the quality of a musical note or… …   Wikipedia

• Dual Committee — Studio album by Dual Committee Released March 21, 2000 …   Wikipedia

• dial, dual-tone multifrequency —    (DTMF)    A push button device with 10 or more nonblocking push buttons designated 0 through 9. Each button, when operated, generates a double frequency signal distinctive to that button …   IT glossary of terms, acronyms and abbreviations

• Tone remote — General Electric Mobile Radio, unknown year). This GE manual covers tone and DC remotes. ] [To confirm the use of the phrase tone remote as accurate in describing this type of device, please see US Patent and Trademark Office patent ID 6950653,… …   Wikipedia