TELEPHONE EXCHANGE SYSTEM

1920: Telephone Exchange System patent was issued in Canada by The International Western Electric Company & The Western Electric Company
1. 1925: The International Western Electric Company (except Canada) was sold to the International Telephone & Telegraph Company (ITT).
  1. 1926: ITT bought Standard Telephone and Cables Ltd (STC)
    1. September 1948: Patent issued for Radio Beacon Transmitter
      1. September 1960: Patent issued for Colour Television apparatus
        September 1962: Patent issued for R-F tuning system utilized in television receivers
    2. August 1967: Patent issued for communication systems (telephone systems)
      1. June 1971: Land-To-Mobile Telephone Link patent issued in Canada
        Nov 1973: Patent issued for a Telecommunication Systems
        June 1974: Telephone Calls Simulator patent issued
        1996: Company renamed ITT Industries, Inc.
        2006: changed its name to ITT Corporation
2. 1925: The engineering department of Western Electric was incorporated as the Bell Telephone Laboratories
  1. 1926: Produced equipment that made sound motion picture practicable
    1. 1927: Gave first public demo of telephone by wire to the secretary of state Herbert Hoover
      1. 1928: Production of step-by-step and panel dial switching equipment to replace manual central office equipment
        1931: Bell System inaugurated teletypewriter exchange service whereby any subscriber in the TWX network could be switched to any other subscriber
        1935: Walter Gifford, AT&T president, called T.G. Mille, Vice President of Long Lines became the first around the world telephone conversation
        1935: Began work on the handset telephone,
        1937: Handset telephone introduced and trial began for a crossbar which greatly improved the speed of telephone calls which made direct dialing a reality.
        1938: First crossbar office at Troy Avenue in Brooklyn, NY
        1949: TV and DATAPHONE services introduced
        1954: Color Telephones introduced
        1958: CALL DIRECTOR introduced
        1960: Princess telephone introduced
        1963: Trimline telephone & telephone set for Touch-Tone introduced
        1984: American Bell, Bell Labs and Western Electric were fully taken over by AT&T, when then becomes AT&T Technologies, Inc.
        The Telecommunications Act of 1996, allowed any communications company to compete in each others market. Therefore, AT&T to created a three way merger and created Lucent Technologies
        Alcatal-Lucent was created in 2006 through the merger of Lucent Technologies and Alcatel
        1946: Bell Systems introduce first mobile telephone system
        1939: The Federal Government authorized Western Electric to proceed with the manufacture of Signal Corps test tests (first major contract with World War II)
        Western Electric Company sells 16,000,000 of its shares to its employees on oct 29, 1929
        1941: Remaining shares of Western Electric Company are retired
    2. 1927: Telephone service began between Mexico and the United States
    3. 1924: Partnered up with Warner Bros to form the Vitaphone Corporation, to experiment in the production and ound motion pictures
      1. 1926: Developed a mobile communication system for New York police department
In 1914, the Bell Telephone Company of Canada and the Imperial Wire & Cable Company Limited joined to form The Northern Electric Company Limited. Western Electric owned 44% of this company.
1. 1956: Western Electric ended its patent and licensing relationship with Northern Electric
  1. A lawsuit is filed against Western Electric which forces the company to sell its share in Northern Electric in 1956 to Bell Canada.. Northern Electric is no longer connected to Western Electric.
  2. 1959: Northern Electric Research and Development Laboratories is established
    1. 1964: Bell owned 100% of Northern Electric
      1. 1971: Northern Electric Laboratories became Bell-Northern Research (BNR), jointly owned by Bell Canada and Northern Electric.
        BNR began developing an electronic switching system, which came to market in 1972
        BNR in Canada was equally owned by Bell Canada (50%) and Northern Electric (50%), which became Nortel in 1995
        1996: Nortel conssumed a majority share in BNR in
        2009: Nortel files for bankruptcy, and sells off assets.
        1990: Electronic Controlled Machining Circuit patent issued
1869: Western Electric was founded by Elisha Gray & Enos M. Barton

Next up

TELEPHONE EXCHANGE SYSTEM

Description

Resource summary

Media attachments

Similar

	Created by cat.sorensen over 8 years ago