CCITT


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CCITT

Commite' Consultatif International de Telegraphique et Telephonique. (International consultative committee on telecommunications and Telegraphy).

CCITT changed its name to ITU-T on 1 March 1993.

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.
References in periodicals archive ?
The interest of many research workers has been directed towards the ADPCM codec capable of providing better performance for speech and voiceband data signals at high speed, either by modifying the ADPCM algorithm (Benvenuto & Daumer, 1988; Shampiro, 1989; CCITT Recommendation G.726-1990; CCITT Recommendation G.727-1990; ITU-T Recommendation G.726 Appendix III-1994; AL-Rawi & AL-Rawi, 2014), or by modifying the model of data transmission system (Jimaa, 1990; AL-Rawi, Soegijoko, & Samadikun 1997; AL-Rawi, 1998; AL-Rawi & AL-Rawi, 2011).
The life time of the VSN is comparable for Gzip_Pack and CCITT Group 4 compression methods.
7 (SS7), performing all signaling control functionalities on service creation for AIN, is 56Kbps for the ANSI standard, and 64Kbps for the CCITT international standard [5], which might cause traffic-related issues when new services will be created and deployed on the networks.
This concept is then applied to the activities of a committee that sets international standards of telecommunications technology: the Comite Consultatif International Telegraphique et Telephonique (CCITT).
Until the 1970s standard setting in international telecommunications was the virtual monopoly of a single organization, the 'International Telegraph and Telephone Committee' (CCITT).
* Descriptions of different methods of compressing graphics data (e.g., run-length encoding, LZW, CCITT, JPEG, JBIG, ART, fractal)
Another number to concern yourself with in selecting a new modem is international standard or protocol set by the Consultative Committee for International Telephone and Telegraphy (CCITT).
Page images are most easily thought of as facsimile images of the pages and, as a matter of fact, these are typically stored in CCITT Group 4 facsimile format because that is one of the most compact ways to store black and white scanned images of text.
The TFS-2000 is a dual-band scrambler designed to work with stand-alone and PC-based fax equipment as well as CCITT Group III fax modems.
Your modem supports data speeds up to 14,400 bps and throughput up to 57,600 bps when using ITUTSS (formerly CCITT) V .42bis 4:1 data compression!