Cell Phone

By Demetrius.H

  • Cordless Phone

    Cordless Phone
    The first version of the cordless phone was invented in 1965 but could not be marketed. It was invented by a Jazz musician. The innventions 2-mile range caused radio signals to interfere with aircraft. She sold the rights to her invention who modified it for use.

  • Inmarsat Satellite telephone system

    Inmarsat Satellite telephone system
    The Inmarsat satellite telephone system, originally developed in 1979 for safety of life at sea, is now also useful for areas out of reach of landline, conventional cellular, or marine VHF radio stations.

  • Second Generation Cell phone

    Second Generation Cell phone
    In the 1990's the 2nd generation mobile phones emerged. The second generation introduced text messaging. 2G also introduced the ability to access media on mobile phones.