The History Of The Telephone

By Thebettercali

  • Telephone transmissions go the distance!

    Telephone services finally can reach from city to city and across many regions.

  • First transcontinental call!

    Alexander Graham Bell calls Watson in San Fransico to Newyork

  • Rotary Dialing Telephone

    Made dialing a little bit easier for the everyday person

  • Frequency Multiplexing Concept

    Allowed multiple phone calls at the same time

  • North American Numbering Plan

    Assigned individual numbers to certain districts creating area codes and such district phone numbers.

  • First phone to combine a ringer and a handset

    AT&T develops the model 500 which becomes an icon

  • Telstar 1

    First Telephone communications sattelite is launched

  • Touch-tone telephone is introduced

    Made phones make beeping sounds when dialed

  • First 911 call made

    Was set as 911 for emergency because it did not include any area codes in U.S. or canada

  • Common channel interoffice signaling

    Allows networked computers to communicate with eachother