WebA telephone exchange name or central office name was a distinguishing and memorable name assigned to a central office. It identified the switching system to which a telephone …

WebAnchor Exchange was an underground, hardened telephone exchange built in Birmingham, England. Construction commenced in 1953 under the guise of building an …

WebGuardian Exchange was an underground telephone exchange built in Manchester from 1954 to 1957. It was built together with the Anchor exchange in Birmingham and the …

WebThe following 47 pages are in this category, out of 47 total. This list may not reflect recent changes ( learn more ). Telephone exchange A Audio Messaging Interchange …

WebA telephone exchange is a telephone system for a small geographic area that provides the switching (interconnection) of subscriber lines for calls made between them. Telephone …

WebA telephone is a telecommunications device that permits two or more users to conduct a conversation when they are too far apart to be easily heard directly. A telephone …

WebA 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 …

WebIn the field of telecommunications, a telephone exchange or telephone switch is a system of electronic components that connects telephone calls. A central office (CO) is the …

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