Device used to connect telephone circuits to establish calls between users
PBX switchboard, 1975
A telephone switchboard was a device used to connect circuits of telephones to establish telephone calls between users or other switchboards, throughout the 20th century. The switchboard was an essential component of a manual telephone exchange, and was operated by switchboard operators who used electrical cords or switches to establish the connections.
The electromechanical automatic telephone exchange, invented by Almon Strowger in 1888, gradually replaced manual switchboards in central telephone exchanges around the world. In 1919, the Bell System in Canada also adopted automatic switching as its future technology, after years of reliance on manual systems.
Nevertheless, many manual branch exchanges remained operational into the second half of the 20th century in many enterprises. Later electronic devices and computer technology gave the operator access to an abundance of features. A private branch exchange (PBX) in a business usually has an attendant console, or an auto-attendant function, which bypasses the operator.
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A telephoneswitchboard was a device used to connect circuits of telephones to establish telephone calls between users or other switchboards, throughout...
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Look up switchboard in Wiktionary, the free dictionary. The term switchboard, when used by itself, may refer to: Telephoneswitchboard Electrical controls:...
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1876, designed a telephone using a water microphone in Highland Park, Illinois. Tivadar Puskás proposed the telephoneswitchboard exchange in 1876. Thomas...
telephone arrived, the telephone exchange with telephoneswitchboards and operators played a crucial role in connecting telephone calls. A telephone switchboard...
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female switchboard operators in World War I, formally known as the Signal Corps Female Telephone Operators Unit. During World War I, these switchboard operators...
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centrally located switchboards. These exchanges were soon connected together, eventually forming an automated, worldwide public switched telephone network. For...
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Marie Cole in 1926 in Scituate, Massachusetts to Margaret Cole, a telephoneswitchboard operator, and Howard Cole, the first full-time firefighter and later...
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the line. It may be used with or without a telephoneswitchboard. The term originated in magneto telephone signaling in which cranking the magneto generator...
person's hands when operating a telephone. By the 1880s, soon after the invention of the telephone, telephoneswitchboard operators began to use head apparatuses...
novel, and directed by Jack Fisk. It follows a divorced mother and telephoneswitchboard operator (Sissy Spacek) living with her two sons in a small town...
Web hosting control panel Plugboard, also called a control panel Telephoneswitchboard, a manual exchange Patch panel Dashboard This disambiguation page...
them in the telephone central office. After subduing Mrs. Foss, tying Walt and her together, and disabling the island's telephoneswitchboard, seven Russians...
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