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  2. Mobile Telephone Switching Office - Wikipedia

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

    When the MSC gets the call, it checks its database for the location of the phone. Then it picks a frequency pair the phone will use in that cell to take the call. The MSC communicates with the phone over the control channel to tell it which frequencies to use, and once the phone and the tower switch on those frequencies, the call is connected.

  3. AT&T Switching Center - Wikipedia

    en.wikipedia.org/wiki/AT&T_Switching_Center

    The AT&T Madison Complex Tandem Office is a 17-story, 79 m (259 ft) building in Los Angeles, California, completed in 1961. With its microwave tower, used through 1993, bringing the overall height to 137 m (449 ft), it is the 29th tallest building in Los Angeles.

  4. Mobile phone tracking - Wikipedia

    en.wikipedia.org/wiki/Mobile_phone_tracking

    An indoor location tracking map on a mobile phone. Mobile phone tracking is a process for identifying the location of a mobile phone, whether stationary or moving. . Localization may be affected by a number of technologies, such as the multilateration of radio signals between (several) cell towers of the network and the phone or by simply

  5. Cell site - Wikipedia

    en.wikipedia.org/wiki/Cell_site

    Cellular lattice tower A cell tower in Peristeri, Greece. 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.

  6. List of mobile virtual network operators in the United States

    en.wikipedia.org/wiki/List_of_mobile_virtual...

    Mobile virtual network operators (MVNOs) in the United States lease wireless telephone and data service from the four major cellular carriers in the country—AT&T Mobility, Boost Mobile, T-Mobile US, and Verizon—and offer various levels of free and/or paid talk, text and data services to their customers.

  7. AT&T cell tower that drew opposition is slated to be built ...

    www.aol.com/t-cell-tower-drew-opposition...

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  8. AT&T, Chickasaw Nation at odds over proposed cell tower in ...

    www.aol.com/t-chickasaw-nation-odds-over...

    Dec. 5—TUPELO — While the Chickasaw Nation continues its effort to construct the Chickasaw Heritage Center, a national telecom giant hopes to construct its own project next door, leading up to ...

  9. GSM Cell ID - Wikipedia

    en.wikipedia.org/wiki/GSM_Cell_ID

    CellMapper - cellular coverage and tower map; OpenCellID - an open source project, aiming to create a complete database of Cell IDs worldwide, with their locations; cellidfinder - Find the coordinates of any known CellID. Navizon - cloud service with API to locate wireless devices using a global database of WiFi access points and Cell-ID ...