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A DynaTAC 8000X; the first commercially available mobile phone from 1983. Electrical engineer Martin Cooper of Motorola made the first publicized handheld mobile phone call on a prototype DynaTAC model on April 3, 1973. This is a reenactment in 2007. The DynaTAC is a series of cellular telephones manufactured by Motorola from 1983 to 1994.
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The Bag Phones are a derivative of the Motorola Tough Talker series of transportable phones, which in turn descended from the DynaTAC car phones introduced in 1984. All of these phones feature a modular design in which the handset attaches to the transceiver , which is then powered by either a vehicle's power system (in the car phones) or a ...
The StarTAC is a series of mobile phones released by Motorola starting in 1996. It is the successor of the MicroTAC, a semi- clamshell design first launched in 1989. [ 2] Whereas the MicroTAC's flip folded down from below the keypad, the StarTAC folded up from above the display. The StarTAC was among the first mobile phones to gain widespread ...
MOTO Talk. MOTO Talk is a feature on some Motorola iDEN cellular phone handsets which allows users to make short-range ' push-to-talk ' calls to other such handsets without being on the iDEN network. This feature goes by different names on iDEN service providers.
A cordless telephone or portable telephone has a portable telephone handset that connects by radio to a base station connected to the public telephone network. The operational range is limited, usually to the same building or within some short distance from the base station. A cordless telephone differs functionally from a mobile telephone in ...
Digital Enhanced Cordless Telecommunications ( DECT) is a cordless telephony standard maintained by ETSI. It originated in Europe, where it is the common standard, replacing earlier standards, such as CT1 and CT2. [ 1] Since the DECT-2020 standard onwards, it also includes IoT communication. Beyond Europe, it has been adopted by Australia and ...
Overview. CT2 is a digital FDMA system that uses time-division duplexing technology to share carrier frequencies between handsets and base stations. Features [1] [2] [3] of the system are: Standardized on 864–868 MHz. 500 frames/second (alternately base station and handset) 100 kHz carriers. 32 kbit/s ADPCM voice channel compression.