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Telex began in the UK as an evolution from the 1930s Telex Printergram service, appearing in 1932 on a limited basis. This used the telephone network in conjunction with a Teleprinter 7B and signalling equipment to send a message to another subscriber with a teleprinter, or to the Central Telegraph Office.
Beginning in the 1980s, the ability to conduct high-speed digital communication—particularly fax transmission—over nonleased dial-up telephone lines led to a decline in the use of telex. Western Union sold its Telex network to AT&T in 1990, before declaring bankruptcy in 1993.
- The Editors of Encyclopaedia Britannica
The advent of the telex machine in 1926 marked a revolutionary advancement in global communication. Invented in Germany by the pioneering physicist Dr. Erich Budelmann, this innovative technology enabled written messages to be rapidly transmitted across vast distances using existing telephone lines.
Telex (telegraph exchange) was a public switched network of teleprinters. It used rotary-telephone-style pulse dialling for automatic routing through the network. It initially used the Baudot code for messages.
Telegraph messages sent by the telegraph operators using Morse code were known as telegrams or cablegrams, often shortened to a cable or a wire message. Later, telegrams sent by the Telex network, a switched network of teleprinters similar to the telephone network, were known as telex messages.
A global teleprinter network called Telex was developed in the late 1920s, and was used through most of the 20th century for business communications. The main difference from a standard teleprinter is that Telex includes a switched routing network, originally based on pulse-telephone dialing, which in the United States was provided by Western ...
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An attempt to trace a history of the telex service in France would appear at first sight to be a relatively secondary and, on balance, quite simple undertaking. Confined to well-defined sectors, telex seems a marginal tool.
