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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.
AT&T Wireless Services, Inc., formerly part of AT&T Corporation, was a wireless telephone carrier founded in 1987 in the United States, based in Redmond, Washington, and later traded on the New York Stock Exchange under the stock symbol "AWE", as a separate entity from its former parent. On October 26, 2004, AT&T Wireless was acquired by ...
Mobile virtual network operators (MVNOs) in the United States lease wireless telephone and data service from the three major cellular carriers in the countryv—AT&T Mobility, T-Mobile US, and Verizon—and offer various levels of free and/or paid talk, text and data services to their customers.
The T-carrier is a hardware specification for carrying multiple time-division multiplexed (TDM) telecommunications channels over a single four-wire transmission circuit. It was developed by AT&T at Bell Laboratories ca. 1957 and first employed by 1962 for long-haul pulse-code modulation (PCM) digital voice transmission with the D1 channel bank.
Boost Mobile is the fourth largest wireless carrier in the United States, with it and its sister brands Gen Mobile and Ting Mobile having 7.3 million subscribers as of June 30, 2024. [1] It was founded as a joint venture between Peter Adderton, Craig Cooper, Kirt McMaster, and Nextel Communications. It was purchased by Nextel in 2003 and, as a ...
One alternative to the UNE-P is unbundled network element loop (UNE-L), in which the CLEC has access to or operates their own local switch. [2] The underlying copper (loop) that runs to the subscriber's premises is then leased by the CLEC, and cross-connected to the CLEC's switch. Both UNE-P and UNE-L have their own unique advantages and ...
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