Group 4
<protocol, compression> (G4) The CCITT fax protocol which uses data compression and allows a variety of file types (e-mail, pictures, PostScript, etc.) to be transmitted over digital (ISDN) telephone lines. The Group 4 protocol was published by CCITT in 1993. Full details of the protocol are available from ITU-T. See also Group 3. (1998-09-10) | ||||
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Group 4 definition was found in categories: Encyclopedia(1)
Group 4 Definition from Encyclopedia Dictionaries & Glossaries
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Group 4
Group 4 may refer to:
- Group 4 element - an element classification
- Group 4 (racing) - an FIA classification for cars in auto racing and rallying
- Group 4 Securicor - a prominent British security company
- IB Group 4 subjects - a subject group for the experimental sciences in the International Baccalaureate program
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