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invented
invented by Martin cooper1973 -
the us starts using phone to connect each other
The U.S. military begins using fiber optics to improve communications systems when the navy installs a fiber-optic telephone link on the USS Little Rock. -
public test of a new cellular phone system 1978
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what happen in 1990
voise over internet protoclos 1990 -
subscribers 2000
100 million cellular tellephone suscribers 2000 -
2001 phone
2001 BellSouth announces that it is leaving the pay phone business because there is too much competition from cell phones. -
phone of 2006
LG chocolate phone 2006
25 Feb 2006 -
LG
LG lolipop2010
25 Feb 2010 -
Nuxeous 5
