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Push-to-talk over cellular ( PTToC) is a service option for a cellular phone network that enables subscribers to use their phones as walkie-talkies with unlimited range. A typical push-to-talk connection connects almost instantly. A significant advantage of PTT is the ability for a single person to reach an active talk group with a single ...
Nextel. Nextel Communications, Inc. was an American wireless service operator that merged with and ceased to exist as a subsidiary of Sprint Corporation, which would later be bought by T-Mobile US and folded into that company. Nextel in Brazil, and formerly in Argentina, Chile, Peru, the Philippines, and Mexico, [ 3] is part of NII Holdings, a ...
Using Nextel's iDEN network, Boost Mobile offered an unlimited push-to-talk service, marketed as only costing a dollar a day, at a time when cellphone plans offering unlimited talk were still rare. The service was initially exclusive to markets in areas of California and Nevada and was marketed towards urban minorities, often using urban slang ...
We put the Now Network's first LTE push-to-talk phone through our review gauntlet not only to gauge how tough it is, but also to find out how well it performs. Head past the break to see how it ...
Sprint Direct Connect Now, based on Qualcomm Inc.'s proven push-to-talk technology platform, effectively extends Sprint's growing push-to-talk franchise - with more than 1 million Sprint Direct ...
A push-button telephone is a telephone that has buttons or keys for dialing a telephone number, in contrast to a rotary dial used in earlier telephones.. Western Electric experimented as early as 1941 with methods of using mechanically activated reeds to produce two tones for each of the ten digits and by the late 1940s such technology was field-tested in a No. 5 Crossbar switching system in ...
t. e. A mobile radio telephone. Mobile radio telephone systems were mobile telephony systems that preceded modern cellular network technology. Since they were the predecessors of the first generation of cellular telephones, these systems are sometimes retroactively referred to as pre-cellular (or sometimes zero generation, that is, 0G) systems.
iDEN supports either three or six interconnect users (phone users) per channel, and six dispatch users (push-to-talk users) per channel, using time-division multiple access. The transmit and receive time slots assigned to each user are deliberately offset in time so that a single user never needs to transmit and receive at the same time.
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