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  2. Telephone exchange - Wikipedia

    en.wikipedia.org/wiki/Telephone_exchange

    Telephone exchange. A telephone operator manually connecting calls with cord pairs at a telephone switchboard. A modern central office, equipped with voice communication and broadband data capabilities. A telephone exchange, also known as a telephone switch or central office, is a crucial component in the public switched telephone network (PSTN ...

  3. Electronic reloading - Wikipedia

    en.wikipedia.org/wiki/Electronic_reloading

    Electronic reloading. With prepaid mobile phone service, topping-up or reloading is needed to continue using the services of the operator. There are several ways to reload a prepaid mobile phone. The most common approach involves purchasing a prepaid card. However, due to security concerns and for added convenience, electronic reloading has ...

  4. Central Telephone - Wikipedia

    en.wikipedia.org/wiki/Central_Telephone

    Central Telephone Company is a telephone operating company owned by Lumen Technologies that provides local telephone service in Florida, Nevada, and North Carolina. Its largest market is Las Vegas History [ edit ]

  5. Telephone exchange names - Wikipedia

    en.wikipedia.org/wiki/Telephone_exchange_names

    Kenmore 9392 is a five-pull (1L-4N) small-city telephone number for the Kenmore exchange in Fort Wayne, Indiana. MArket 7032 is a six-digit (2L-4N) telephone number. This format was in use from the 1920s through the 1950s, and was phased out c. 1960. BALdwin 6828 is an urban 3L-4N example, used only in the largest cities before conversion to ...

  6. Area codes 614 and 380 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_614_and_380

    The regions shown in blue are in Ohio. Area codes 614 and 380 are telephone area codes in the North American Numbering Plan (NANP) for all or part of four counties in central Ohio, surrounding and including the state capital of Columbus. Area code 614 is one of the original area codes assigned for Ohio in 1947, while area code 380 is an overlay ...

  7. Peer-to-peer SIP - Wikipedia

    en.wikipedia.org/wiki/Peer-to-peer_SIP

    Peer-to-peer SIP ( P2P-SIP) is an implementation of a distributed voice over Internet Protocol (VoIP) or instant messaging communications application using a peer-to-peer (P2P) architecture in which session control between communication end points is facilitated with the Session Initiation Protocol (SIP).

  8. Cell site - Wikipedia

    en.wikipedia.org/wiki/Cell_site

    A cell site, cell phone tower, cell base tower, or cellular base station is a cellular -enabled mobile device site where antennas and electronic communications equipment are placed (typically on a radio mast, tower, or other raised structure) to create a cell, or adjacent cells, in a cellular network. The raised structure typically supports ...

  9. Mobile Telephone Switching Office - Wikipedia

    en.wikipedia.org/wiki/Mobile_Telephone_Switching...

    Mobile Telephone Switching Office. The Mobile Telephone Switching Office (MTSO) is the mobile equivalent of 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 controlling the cell sites that are connected to the MSC.

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