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Lifeline is the Federal Communications Commission 's program, established in 1985, intended to make communications services more affordable for low-income consumers. Lifeline provides subscribers a discount on monthly telephone service purchased from participating providers in the marketplace. Subscribers can also purchase discounted broadband ...
TAG Mobile. TAG Mobile is an American wireless telecommunications provider based in Houston, Texas. It is an Eligible Telecommunications Carrier (ETC) that provides free wireless services to eligible Lifeline consumers across 19 states. The TAG Mobile Lifeline Program provides cell phones to those in the low-income category and also individuals ...
Assurance Wireless. Assurance Wireless is a telephone service subsidized by the federal Lifeline Assistance program, a government benefit program supported by the federal Universal Service Fund. The service provides to low-income eligible people a free phone, [1] [2] free monthly data, unlimited texting, and free monthly minutes.
Mobile virtual network operators (MVNOs) in the United States lease wireless telephone and data service from the three major cellular carriers in the country, AT&T Mobility, T-Mobile US, and Verizon. [1] [2] In 2016, MVNOs across the nation such as Metro PCS, Boost Mobile, Cricket Wireless, and TracFone brands served about 36 million subscribers.
The Bluetooth protocol RFCOMM is a simple set of transport protocols, made on top of the L2CAP protocol, providing emulated RS-232 serial ports (up to sixty simultaneous connections to a Bluetooth device at a time). The protocol is based on the ETSI standard TS 07.10. RFCOMM is sometimes called serial port emulation.
A telephone keypad using the ITU E.161 standard. A telephone keypad is a keypad installed on a push-button telephone or similar telecommunication device for dialing a telephone number. It was standardized when the dual-tone multi-frequency signaling (DTMF) system was developed in the Bell System in the United States in the 1960s that replaced ...
Through-the-Earth (TTE) signalling is a type of radio signalling used in mines and caves that uses low-frequency waves to penetrate dirt and rock, which are opaque to higher-frequency conventional radio signals. In mining, these lower-frequency signals can be relayed underground through various antennas, repeater or mesh configurations, but ...
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 ...