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1 November 1960: The Bell System begins testing its push-button phone, starting with service in Findlay, Ohio. [39] 1960: Bell Labs conducts extensive field trial of an electronic central office in Morris, Illinois, known at the Morris System. 1960s: Bell Labs developed the electronics for cellular phones; 1961: Initiation of Touch-Tone service ...
The telephone played a major communications role in American history from the 1876 publication of its first patent by Alexander Graham Bell onward. In the 20th century the American Telephone and Telegraph Company (AT&T) dominated the telecommunication market as the at times largest company in the world, until it was broken up in 1982 and replaced by a system of competitors.
Before the 1960s, the telephone exchange with telephone switchboards and operators played a crucial role in connecting phone calls. A telephone switchboard is a device that allows telephone lines to be interconnected, enabling the routing of calls between different phones or phone networks. [17]
After 1945 the telegraphy industry began to experience a decline, with total telegraph messages almost halving from 1945 to 1960. In 1931, the American Telephone and Telegraph Company (AT&T) introduced the Teletypewriter Exchange Service (TWX) which operated over telephone circuits between devices located directly in private businesses.
The master telephone patent granted to Bell, 174465, March 7, 1876. The modern telephone is the result of the work of many people. [10] Alexander Graham Bell was, however, the first to patent the telephone, as an "apparatus for transmitting vocal or other sounds telegraphically".
The Bell System was a system of telecommunication companies, led by the Bell Telephone Company and later by the American Telephone and Telegraph Company (AT&T), that dominated the telephone services industry in North America for over 100 years from its creation in 1877 until its antitrust breakup in 1983.
Western Electric Co., Inc. was an American electrical engineering and manufacturing company that operated from 1869 to 1996. A subsidiary of the AT&T Corporation for most of its lifespan, Western Electric was the primary manufacturer, supplier, and purchasing agent for all telephone equipment for the Bell System from 1881 until 1984, when the Bell System was dismantled.
In the following states and regions, the primary local carrier is not an RBOC: Lumen Technologies, in addition to its role as the BOC in the areas of 14 states gained from its acquisition of Qwest, Lumen serves other non-ex-Bell local exchanges in those states, as well as some in Florida and the Las Vegas metropolitan area in Nevada.