International Telecommunications Union
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International Telecommunications Union
(body, standard)(ITU) ITU-T, the telecommunication
standardisation sector of ITU, is responsible for making
technical recommendations about telephone and data (including
fax) communications systems for PTTs and suppliers. Before
1993-03-01 ITU-T was known as CCITT. Every four years they
hold plenary sessions where they adopt new standards; there
was one in 1992.
ITU works closely with all standards organisations to form an international uniform standards system for communication. Study Group XVII is responsible for recommending standards for data communications over telephone networks. They publish the V.XX standards and X.n protocols. V.21 is the same as EIA's EIA-232. V.24 is the same as EIA's EIA-232C. V.28 is the same as EIA's EIA-232D.
Address: International Telecommunication Union, Information Services Department, Place des Nations, 1211 Geneva 20, Switzerland.
Telephone: +41 (22) 730 5554. Fax: +41 (22) 730 5337.
E-mail: <helpdesk@itu.ch>, <teledoc@itu.arcom.ch> (Mail body: HELP).
http://itu.ch/.
ITU-T standards can be obtained by FTP from Korea; UK - Imperial, HENSA; France - INRIA, IMAG; Israel; FTP USA: UUNET, gatekeeper, world.std.com; Australia; Germany; Japan;
ITU works closely with all standards organisations to form an international uniform standards system for communication. Study Group XVII is responsible for recommending standards for data communications over telephone networks. They publish the V.XX standards and X.n protocols. V.21 is the same as EIA's EIA-232. V.24 is the same as EIA's EIA-232C. V.28 is the same as EIA's EIA-232D.
Address: International Telecommunication Union, Information Services Department, Place des Nations, 1211 Geneva 20, Switzerland.
Telephone: +41 (22) 730 5554. Fax: +41 (22) 730 5337.
E-mail: <helpdesk@itu.ch>, <teledoc@itu.arcom.ch> (Mail body: HELP).
http://itu.ch/.
ITU-T standards can be obtained by FTP from Korea; UK - Imperial, HENSA; France - INRIA, IMAG; Israel; FTP USA: UUNET, gatekeeper, world.std.com; Australia; Germany; Japan;
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ITU
(International Telecommunication Union, Geneva, Switzerland, www.itu.ch) A telecommunications standards body that is under the auspices of the United Nations. Comprising more than 185 member countries, the ITU sets standards for global telecom networks. The ITU's Telecommunications division (ITU-T) produces more than 200 standards recommendations each year in the converging areas of telecommunications, information technology, consumer electronics, broadcasting and multimedia communications. In 1992, the ITU was streamlined into the following three sectors:ITU-D (Telecommunication Development)
ITU-R (Radiocommunication)
ITU-T (Telecommunication Standardization)
A Lot of History: CCIT, CCIF, CCIR and CCITT
The International Telegraph Union was founded in 1865 to promote the electric telegraph, which was invented in 1837. During the next 55 years, the telegraph flourished, and telephone and radio were pioneered. In the 1920s, three "Consultative Committees" were created: CCIT in 1924 for International Telegraph; CCIF in 1925 for International Telephone, and CCIR in 1927 for International Radio. In 1932, the word Telegraph was changed to Telecommunication in the ITU name.
In 1956, CCIF and CCIT combined into CCITT (International Telephony and Telegraphy), which subsequenlty became ITU-T in 1992. CCIR and the International Frequency Registration Board (IFRB) were turned into ITU-R, and the Telecommunications Development Bureau became ITU-D.
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