telephone evolution

By em_n_m2601

  • Invention of the telephone

    Alexander Graham Bell and his assistant Thomas Augustus Watson invented the telephone. Elisha Gary was also noted for the invention of the telephone.

  • Bell telephone company created

    Gardiner Hubbard formed the Bell Telephone Company some time in July, 1877

  • switchboard invented

    the first switchboard was invented allowing many callers to communicate through a single exchange some time in 1878.

  • Telephoning between major cities

    Telephoning transmissions are now available between major cities some time in the 1900's

  • First transcontinental call

    Alexander Graham Bell makes the first transcontinental telephone call to Thomas Watson-from New York to San Francisco some time in 1915

  • Numbering Plan invented

    A system that assigns telephone numbers to customers in the United States and its territories as well as Canada and many Caribbean nations some time in 1947

  • First Digital Transmission System

    First Digital transmission system excluding analog lines some time in 1962

  • First 911 call made

    Legislation calls for a single nationwide number for reporting emergencies and 911 created.

  • First Portable Telephone call

    First Portable Telephone Call made by Martin Cooper some time in 1973

  • 100 million telephone subscribers in US

    similar amount of subscribers in other countries and phones are begining to provide new purposes; the use of internet, gaming and communication. They are shrinking in size and becoming more mobile for users. This is sometime between 2000 and the current decade.