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Push to talk — (PTT), also known as Press to Transmit , is a method of conversing on half duplex communication lines, including two way radio, using a momentary button to switch from voice reception mode to transmit mode.Conventional two way radiosFor… … Wikipedia
PoC — Saltar a navegación, búsqueda PTT PoC o Push To Talk over Cellular (en español: pulsar para hablar sobre el celular) es similar a una característica de walkie talkie que se proporciona a través de una red de telefonía celular. Una típica conexión … Wikipedia Español
Integrated Digital Enhanced Network — IDEN redirects here. For other uses, see Iden (disambiguation). Integrated Digital Enhanced Network (iDEN) is a mobile telecommunications technology, developed by Motorola, which provides its users the benefits of a trunked radio and a cellular… … Wikipedia
GSM-R — GSM R, Global System for Mobile Communications Railway or GSM Railway is an international wireless communications standard for railway communication and applications. A sub system of European Rail Traffic Management System (ERTMS), it is used for … Wikipedia
Nokia phone series — Nokia s nomenclature can be traced back since 2005, when the Nseries line was introduced.[1] Because of the demands and peak of that line, Nokia again introduced another series of phones named Eseries,[2] made mostly for the enterprise market.[3] … Wikipedia
Mobile phone — Cell Phone redirects here. For the film, see Cell Phone (film). Handphone redirects here. For the film, see Handphone (film) … Wikipedia
Sprint Nextel — Corporation Type Public company Traded as NYSE: S NASDAQ: … Wikipedia
Walkie-talkie — A walkie talkie (more formally known as a handheld transceiver) is a hand held, portable, two way radio transceiver. Originally developed for the Canadian government during the Second World War by Canadian Donald L. Hings, similar designs were… … Wikipedia
R2 signalling — R2[1] is a 1950s and 1970s era channel associated signalling signalling protocol used outside of the former Bell System to convey information along a telephone trunk between two telephone switches in order to establish a single telephone call… … Wikipedia
Voicemail — (also known as voice mail, voice message, or voice bank) is a computer based system that allows users and subscribers to exchange personal voice messages; to select and deliver voice information; and to process transactions relating to… … Wikipedia
AT&T Mobility — AT T Wireless redirects here. For the defunct wireless provider that was merged into Cingular in 2004, see AT T Wireless Services. AT T Mobility LLC Type Private (subsidiary of AT T Inc.) Industry … Wikipedia
