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Federal Telecommunications System 2000 (FTS2000) is a long distance telecommunications service for the United States federal government, including services such as switched voice service for voice or data up to 4.8 kbit/s, switched data at 56 kbit/s and 64 kbit/s, switched digital integrated service for voice, data, image, and video up to 1.544 Mbit/s, packet switched service for data in ...
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The T1 line consists of 23 bearer (B) channels and one data (D) channel for control purposes, [1] for a total bandwidth of 24x64-kbit/s or 1.544 Mbit/s. The E1 carrier provides 30 B- and one D-channel for a bandwidth of 2.048 Mbit/s. [2] The first timeslot on the E1 is used for synchronization purposes and is not considered to be a B- or D ...
A vertical service code (VSC) is a sequence of digits and the signals star (*) and pound/hash (#) dialed on a telephone keypad or rotary dial to access certain telephone service features. [1]
Originally a network of fixed-line analog telephone systems, the PSTN is now predominantly digital in its core network and includes terrestrial cellular, satellite, and landline systems. These interconnected networks enable global communication, allowing calls to be made to and from nearly any telephone worldwide. [ 1 ]
Founded in 2002, Grandstream Networks is a manufacturer of IP voice and video communications equipment, video surveillance, [1] gateways and analog telephone adapters (ATAs), and Asterisk-based IP-PBX appliances. Grandstream supplies small and medium businesses and consumers with open-standard SIP-based products.
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A telecommunications tariff is an open contract between a telecommunications service provider and the public, filed with a regulating body such as state and municipal Public Utilities Commissions and federal entities such as the Federal Communications Commission (FCC). [1]