History of the cell phone

By kpage12

  • were the first cell phone was created

    The basic concept of cellular phones began in 1947, when researchers looked at crude mobile (car) phones and realized that by using small cells (range of service area) with frequency reuse they could increase the traffic capacity of mobile phones substantially

  • made radios in phones

    In 1947, AT&T proposed that the FCC allocate a large number of radio-spectrum frequencies so that widespread mobile telephone service would become feasible and AT&T would have a incentive to research the new technology

  • better phone

    in 1968, stating "if the technology to build a better mobile service works, we will increase the frequencies allocation, freeing the airwaves for more mobile phones

  • better and newer cell phone

    Cooper made the first call on a portable cell phone in April 1973

  • prototype

    By 1977, AT&T and Bell Labs had constructed a prototype cellular system

  • more phones

    By 1987, cellular telephone subscribers exceeded one million and the airways were crowded

  • tokyo

    1979, in a separate venture, the first commercial cellular telephone system began operation in Tokyo