Search results
Results from the WOW.Com Content Network
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 the Bell System in 1984, it was rebranded and later also supplied by Lucent and Avaya.
A 220 Trimline rotary desk phone, showing the innovative rotary dial with moving fingerstop Early Touch Tone Trimline with round buttons and clear plastic backplate and round non-modular handset cord Redesigned touch-tone desk model Trimline, manufactured on January 9, 1985 The Trimline 2225, one of the last phones made at the Indianapolis Works in 1986 Early foreign made Trimline, December ...
The series was called the Design Line telephones. The name did not refer to one particular telephone type; rather Design Line was the collective name given to all the specialty phones, including the Candlestick phone, Country Junction phone, Mickey Mouse phone and others. [1] The phones were among the few that could be purchased in the early 1970s.
The first version of the new hand telephone sets was marked by AT&T as D-76869, a specification type for small quantities of new equipment. The device was described by George K. Thompson of the American Telephone and Telegraph Company (AT&T) in United States patent No. 1508424 of 1924, without showing the handset that was still in development. [10]
5ESS uses a time-space-time (TST) topology in which the Time-Slot-Interchangers (TSI) in the Switching Modules assign each phone call to a time slot for routing through the CM. CMs perform time-divided switching and are provided in pairs; each module (cabinet) belonging to Office Network and Timing Complex (ONTC) 0 or 1, roughly corresponding ...
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 simply focus on leasing equipment and on sales at department stores.
A 1959 Western Electric model 554 wall phone, derived from the model 500 desk phone. It uses the same internal components, dial, and handset as a desk phone. Several telephone models were derived from the basic model 500, using some of the same components. The model 554 was a wall-mounted version.
The main producers of these telephones were Western Electric (a unit of AT&T), Automatic Electric Co. (later acquired by GTE), Kellogg Switchboard & Supply Company and Stromberg-Carlson. The first tube shaft candlestick telephone was the Western Electric #20B Desk Phone patented in 1904. [ 1 ]