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see telegraphtelegraph,
term originally applied to any device or system for distant communication by means of visible or audible signals, now commonly restricted to electrically operated devices. Attempts at long-distance communication date back thousands of years (see signaling).
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The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



an international teletypewriter exchange network. As of the mid-1970’s, the Telex network consisted of about 100 national networks equipped with Telex automatic switching stations, which use step-by-step (Strowger) switching and rotary dialing of numbers. The international part of the Telex network uses voice-frequency telegraph channels and radio channels. In most countries the Telex network is not separate from other teleprinter exchange services. Telex is used by about 600,000 subscribers, more than half of them in Europe.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.


A worldwide teleprinter exchange service providing direct send and receive teleprinter connections between subscribers. Abbreviated TEX.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.


(1) (TELetypewriter EXchange) An international, dial-up data communications service administered in the U.S. by AT&T, MCI and other providers. Developed in the U.S. and other European countries in the 1930s, it was the first data communications service that used typewriter-like terminals (teletypewriters). Prior to Telex, telegrams and cablegrams were the primary method for delivering a text message. By the 1960s, Telex became a worldwide, real-time, data communications service. Although diminishing each year, Telex is still used for commerce in more than 200 countries.

Telex started out transmitting Baudot code at 50 bps. Although upgraded, it is still a low-speed data service. It was originally administered worldwide by various carriers and the local PTTs. Western Union handled the U.S., and in 1971, purchased and integrated the Bell System's TWX service. AT&T acquired Western Union's Telex service in 1991.

(2) (Telex Communications, Inc., Burnsville, MN, A manufacturer of hearing aids and audio communications devices founded in 1936. Originally making hearing aids, the company evolved into a manufacturer of a variety of audio products, including intercoms, microphones, speakers, headsets, antennas and LCD projectors.

Early Telex Center
A far cry from today's network control centers, this Telex center in Berlin, Germany in 1933 initially communicated with another center in Hamburg. The teletypewriters and communications equipment were made by Siemens. (Image courtesy of Fujitsu Siemens Computers GmbH.)
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References in periodicals archive ?
"The Telex Legacy system is essential in a wireless network system," Gubser said.
According to Sergio Vasquez, Gerente Comercial of Telecom El Salvador, "We have full confidence in EasyLink's abilities to operate our nation's Telex services.
234-1-803980 Fax: 234-1-873149 Telex: 21233 Unasup-N L.
The US enquiries have established that the offices mentioned in the telex either do not exist or have no record of any such telex having been sent or received.
E-mail may be considered a replacement or a supplement to telex or memos, but it puts total communications control right onto a worker's desk.
Throughout his career, Bautista received nine Carlos Palanca awards for his works namely: The Cave and Other Poems, 1968; The Archipelago, 1970; Ritual, 1971; The Man Who Made a Covenant with the Wind, 1975; Charts, 1973; Telex Moon, 1975; Crossworks, 1979; and Philippine Poetics: The Past Eight Years, 1981.
Abbas, Operator; Abdul Majeed, Operator; Mirza Sagheer Ahmad, Telex Operator; Muhammad Riaz, Junior Clerk; Irshad
The suspended officials include assistant Wasif Hameed, senior clerks Muhammad Tassawar and Atif Aslam; stenographers Mushtaq Ali, Shoukat Ali Watoo, Operators Khalid Feroz, Mujeeb Aslam ; Muhammad Abbas and Abdul Majeed; telex operator Mirza Sagheer Ahmad junior clerk Muhammad Riaz, naib qasids Irshad Rasheed and Umer Khan, dark room attendant Jarrar Abbas, Drivers Hamza Bajwa and Waseem Akhtar, composer Sheharyar Bashir, Dak runner Ali Raza, watchman Muhammad Dilawar and helper Ahsan Iqbal.
Although not present at the track himself, it did not take long for him to be informed of the performances and on Wednesday he had completed deals to land fastest heat winner Telex Diamond along with unlucky heat loser Its Terrific.
A TOP-secret telex that wrongly told the Germans the D-Day landings were a diversion is going under the hammer tomorrow.