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A cordless telephone or portable telephone has a portable telephone handset that connects by radio to a base station connected to the public telephone network. The operational range is limited, usually to the same building or within some short distance from the base station. A cordless telephone differs functionally from a mobile telephone in ...
AT&T Merlin. AT&T Merlin is a corporate telephone system by American Telephone and Telegraph (AT&T) that was introduced in late 1983, when it was branded American Bell Merlin. After the breakup of AT&T in 1984, it was rebranded and later also supplied by Lucent and Avaya . The system was designed at the beginning of the 1980s prior to the Bell ...
The Bell System Practices ( BSPs) is a compilation of technical publications which describes the best methods of engineering, constructing, installing, and maintaining the telephone plant of the Bell System under direction of AT&T and Bell Telephone Laboratories. [1] Covering everything from accounting and human resources procedures through ...
MTC 3600 SmartNET/SmartZone 4.1 Controller (Prime & Remote) PSC 9600 Astro25 6.x Site Controller (Remote Sites) MTC 9600 ASTRO25 Site Controller (Prime Sites) GCP 8000 ASTRO25 Site Controller (Prime & Remote Sites) MZC 3000 SmartZone 4.1 Zone Controller (4.1 Master Sites)
One of the jobs of outside plant personnel was to visit each telephone periodically to inspect the battery. During the 20th century, the "common battery" operation came to dominate, and was powered by the "talk battery" from the telephone exchange over the same wires that carried the voice signals. Late in the century, wireless handsets brought ...
1983: last manual telephone switchboard in Maine is retired; 1984: AT&T completes the divestiture of its local operating companies. This forms a new AT&T (long-distance service and equipment sales) and the Baby Bells. 1987: ADSL introduced; 1988: First transatlantic fiber optic cable TAT-8, carrying 40,000 circuits
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