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Cell Phones

By Kierstan

  • Martin Cooper invented the first cell phone

    Martin Cooper invented the first cell phone
    The mobile phone was invented in 1973 by Dr. Martin Cooper, a Motorola employee. On April 3, 1973, the first cell phone call was made. The caller was naturally, Dr. Cooper himself. The receiver of the first mobile phone call was Joel Angel, the research head at AT&T's Bell Labs and rival of Dr. Cooper.

  • prototype

    prototype
    AT&T and Bell Labs had constructed a prototype cellular system

  • Caller ID

    Caller ID
    Caller ID patented by Carolyn Doughty.

  • Cellular system

    Cellular system
    The first commercial cellular system begins operating in Chicago.

  • cell phone subscribers

    cell phone subscribers
    cellular telephone subscribers exceeded one million and the airways were crowded.

  • FFC

    FFC
    FCC declared in 1987 that cellular licensees could employ alternative cellular technologies in the 800 MHz band.

  • TDMA

    TDMA
    The TDMA Interim Standard 54 or TDMA IS-54 was released in early 1991.