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telephone central office

См. также в других словарях:

  • central office PBX trunk —    The facility between the telephone company central office and the interface at the user PBX …   IT glossary of terms, acronyms and abbreviations

  • central office —    (CO)    Telephone company s main switchiing location that provides local access to the public network …   IT glossary of terms, acronyms and abbreviations

  • Detroit-Columbia Central Office Building — U.S. National Register of Historic Places U.S. Historic district Contributing pro …   Wikipedia

  • Mobile Telephone Switching Office — The Mobile Telephone Switching Office (MTSO) is the mobile equivalent to a PSTN Central Office. The MTSO contains the switching equipment or Mobile Switching Center (MSC) for routing mobile phone calls. It also contains the equipment for… …   Wikipedia

  • rotary output to central office —    System that translates a tone dialed telephone number into rotary dial pulses and transmits these signals to the central office …   IT glossary of terms, acronyms and abbreviations

  • Telephone exchange — A telephone operator manually connecting calls with cord pairs at a telephone switchboard. In the field of telecommunications, a telephone exchange or telephone switch is a system of electronic components that connects telephone calls. A central… …   Wikipedia

  • Telephone signaling interface — There are many interface standards between analog telephone central office equipment and the subscriber s premise. Single voice paths generally include analog audio connections, either a two wire circuit or four wire circuit plus signaling paths… …   Wikipedia

  • office classification —    Functional ranking of telephone central office switches. See also class of service …   IT glossary of terms, acronyms and abbreviations

  • Telephone exchange — Tel e*phone ex*change A central office in which the wires of telephones from local subscribers may be connected by switches to other local telephones or to long distance lines, to permit transmission of conversation or data. Note: In the late… …   The Collaborative International Dictionary of English

  • Telephone numbers in Canada — all have the same format, consisting of the country code, followed by an area code (Numbering Plan Area, or NPA), then a central office code (or exchange code, denoted by NXX), and finally a station code. This is represented as 1 NPA NXX CODE, in …   Wikipedia

  • 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

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