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Telephone switchboard. A telephone switchboard is a device used to connect circuits of telephones to establish telephone calls between users or other switchboards. The switchboard is an essential component of a manual telephone exchange, and is operated by switchboard operators who use electrical cords or switches to establish the connections.
Telephone exchange. A telephone operator manually connecting calls with cord pairs at a telephone switchboard. A modern central office, equipped with voice communication and broadband data capabilities. A telephone exchange, also known as a telephone switch or central office, is a crucial component in the public switched telephone network (PSTN ...
Rotary dial. A traditional North American rotary telephone dial on the Western Electric 500. The associative lettering was originally used for dialing named exchanges but was kept because it facilitated memorization of telephone numbers. A rotary dial is a component of a telephone or a telephone switchboard that implements a signaling ...
Whitepages was founded in 1997 as a hobby for then- Stanford student Alex Algard. It was incorporated in 2000 and received $45 million in funding in 2005. Investors were later bought-out by Algard in 2013. From 2008 to 2013, Whitepages released several mobile apps, a re-design in 2009, the ability for consumers to control their contact ...
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] The switchboard operator was a person who manually connected calls by plugging and unplugging cords on the switchboard.
A telephone switchboard is a device that allows telephone lines to be interconnected, enabling the routing of calls between different telephones or telephone networks. [38] The switchboard operator was a person who manually connected calls by plugging and unplugging cords on the switchboard.
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