On April 3, 1973, Motorola employee Dr. Martin Cooper placed a call to a rival, Dr. Joel S. Engel, head of research at AT&T's Bell Labs, while walking the streets of New York City talking on the first Motorola DynaTAC prototype in front of reporters. Motorola has a long history of making automotive radio, especially two-way radios for taxicabs and police cruisers.
In 1978, Bell Labs launched a trial of the first commercial cellular network in Chicago using AMPS [1], but this network was not approved by the FCC until 1982.
The first commercial launch of cellular telecoms was launched by NET in Tokyo Japan in 1979. In 1981 the NMT system was launched in Denmark, Finland, Norway and Sweden.
The first handheld mobile phone in the US market was the Motorola_Dyna 8000X, which received approval in 1983. >>>>
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