Ring, Ring, Its the Phone!

By saw4894

  • Early Telephone

    Early Telephone

  • Model of Bell's Telephone

    Model of Bell's Telephone

  • First transcontinental telephone call

    Alexander Graham Bell makes the first transcontinental telephone call to Thomas Watson-from New York to San Francisco-after trials using De Forest’s triodes successfully boost the long-distance signal. What is the world’s longest telephone line consists of 2,500 tons of copper wire, 130,000 poles, three vacuum-tube repeaters, and countless numbers of loading coils.

  • Switching systems and rotary-dial telephones

    Companies begin installing switching systems and rotary-dial telephones.The dial makes it easier for customers to place calls without an operator. The finger wheel of the dial interrupts the current in the phone line, creating pulses that correspond to the digits of the number being called.

  • Dialing Phone Numbers

    Dialing Phone Numbers

  • Charles J. Bell holding the First Telephone

    Charles J. Bell holding the First Telephone

  • North American Numbering Plan

    Customers started to receive assigned phone numbers

  • New Telephone

    New Telephone

  • First portable cell phone call is made

    Phones had been in cars since the 1940s however, this was the first truly portable phone / phone call.

  • 100 million cellular telephone subscribers