History of Wireless Communication.

By Notstopfreeze
  • Birth of Mobile Telephony.

    Birth of Mobile Telephony.

    Number of mobile users > 50K 1940s-1950s.
  • Birth of Mobile Telephony.

    Birth of Mobile Telephony.

    First interconnection of moible users to public switched telephone nextwork (PSTN)
  • Birth of Moible Telephony.

    Birth of Moible Telephony.

    FCC recognizes mobile radio as new class of service
  • Birth of Mobile Telephony.

    Birth of Mobile Telephony.

    Number of mobile users > 500K 1950s-1960s
  • Birth of Mobile Telephony.

    Birth of Mobile Telephony.

    Number of mobile userd > 1.4M 1960s-1970s
  • Birth of Mobile Telephony.

    Birth of Mobile Telephony.

    Improved Mobile Telephone Services (IMTS) introduced; supports full-duplex, auto dial, auto truncking.
  • Birth of Mobile Telephony.

    Birth of Mobile Telephony.

    Bell Mobile Phone has 543 pay customers using channels in the New York City are; waiting list is 3700 people; service is porr due to blocking.
  • Cellular Mobile Telephony.

    Cellular Mobile Telephony.

    NTT/Japan dedeploys first cellular communication system.
  • Cellular Mobile Telephony.

    Cellular Mobile Telephony.

    Advanced Mobile Phone System (AMPS) deployed in US in 900 MHz band: supports 666 duplex channels.
  • Cellular Mobile Telephony.

    Cellular Mobile Telephony.

    Groupe Special Mobile defines Eurpoean digital cellular standard, GSM.