Group 3


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Group 3

(protocol, compression)
(G3) The CCITT fax protocol which uses data compression and allows a variety of file types (e.g. electronic mail, pictures, PostScript) to be transmitted over analogue telephone lines.

The Group 3 protocol was published by CCITT in 1993. Full details of the protocol are available from ITU-T.

See also Group 4.
References in periodicals archive ?
Group 1 had an average of 69% of correct responding while Group 2 and Group 3 averaged 67% and 54% respectively.