dial, dual-tone multifrequency

   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. . 2015.

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

  • 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

  • dial —    1. A device that transmits a coded signal to actuate the central office switching equipment according to the digit dialed. A dial can be either a rotary device that is wound up and released to transmit open pulses (DC space pulses) or a touch… …   IT glossary of terms, acronyms and abbreviations

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

  • telephone — telephoner, n. /tel euh fohn /, n., v., telephoned, telephoning. n. 1. an apparatus, system, or process for transmission of sound or speech to a distant point, esp. by an electric device. v.t. 2. to speak to or summon (a person) by telephone. 3.… …   Universalium

  • Disconnect supervision — is a term in telephony describing signaling between the telephone exchange and a connected party used to indicate that the connected call is being disconnected. For example the called party may indicate to the telephone exchange that the call is… …   Wikipedia

  • DTMF — abbr. DeskTop Management task Force (Intel) abbr. Dual Tone Multi Frequency comp. abbr. Data Tone Multiple Frequency comp. abbr. Dual Tone Multifrequency acronym Dial Tone Multi Frequency (Telephony) …   United dictionary of abbreviations and acronyms

  • converter, dime —    A device that receives dual tone multifrequency (DTMF) address signals and converts them to dial pulses …   IT glossary of terms, acronyms and abbreviations

  • Number One Crossbar Switching System — The Number One Crossbar Switching System, or 1XB switch, was the primary urban local telephone exchange design used by the Bell System in the mid 20th century. Its switch fabric topology was based on the earlier urban panel switch system, which,… …   Wikipedia

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