cell phones

By kennedyeryn
  • invented

    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

  • 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

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