automatic and semi-automatic telephone exchanges

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• Highgate Wood Telephone Exchange — Highgate Wood is a suburb in North London that was chosen as the site of a trial for an electronic telephone exchange built by members from Joint Electronic Research Council (JERC), which was formed in 1956 and consisted of the British Post… …   Wikipedia

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• Rotary system — The Rotary machine switching system was a type of automatic telephone exchange manufactured and used in Europe from the 1910s. It was developed by Bell Labs in America when they were developing the Panel system [ Fagen, M.D. A History of… …   Wikipedia

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• Voicemail — (also known as voice mail, voice message, or voice bank) is a computer based system that allows users and subscribers to exchange personal voice messages; to select and deliver voice information; and to process transactions relating to… …   Wikipedia

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