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AT&T Merlin five-button telephone (voice terminal) manufactured in early 1980. 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.
A typical volume of Bell System Practices from the 1970s. 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]
Two cordless telephones 3 VTech cordless landline phones A Panasonic KX-TG2226B 2.4GHz cordless phone with answering machine. 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 ...
List of the mainly electro mechanical switching systems from Hasler AG Bern, which were used in public telephone network in Switzerland for many decades. Hasler AG finally merged into Ascom in 1987. HS 25 (modified from the Ericsson OL-100 system with double relays and 25-point selector (Ericsson license), mainly used for small villages and ...
Bell and Western Electric markings were replaced with AT&T on telephone housings. AT&T Consumer Products became responsible for leased telephones and manufactured telephones on January 1, 1984. AT&T Consumer Products was absorbed into AT&T Technologies in 1989. AT&T Consumer Products ceased operations of AT&T Phone Centers in 1995, deciding to ...
5ESS used in a mobile telephone network. The 5ESS Switching System is a Class 5 telephone electronic switching system developed by Western Electric for the American Telephone and Telegraph Company (AT&T) and the Bell System in the United States. It came into service in 1982 and the last unit was produced in 2003. [1]
The UK Health Protection Agency (HPA) claims that due to a mobile phone's adaptive power ability, a European DECT cordless phone's radiation could actually exceed the radiation of a mobile phone. A European DECT cordless phone's radiation has an average output power of 10 mW but is in the form of 100 bursts per second of 250 mW, a strength ...
In 1985, AT&T Technologies redesigned its consumer telephone products to be cheaper to build and be more competitive in the marketplace by adding electronic ringers and a redial function. In 1986, they moved telephone production out of the United States. After this time several new Design Line series telephones were marketed and discontinued.