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.
(1998-10-03)