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Telephone switchboards work
The switchboard was an essential component of a manual telephone exchange, and was operated by switchboard See more. Throughout the 20th century, telephone switchboards were devices used to connect circuits of telephones to establish telephone calls between users or other switchboards. Learn how the components of a transmission works. A telephone switchboard was a device used to connect circuits of telephones to establish telephone calls between users or other switchboards, throughout the . The electromechanical automatic telephone exchange, invented by Almon Strowger in , gradually replaced manual switchboards in central teleph. 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 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 , gradually replaced manual switchboards in central teleph. 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. These jobs have been gradually replaced by automated answering systems that have recently taken over. . Jun 02, · Switchboard operator became telephone operators or receptionists. Learn how telemedicine works and when it's right for you.