emv@a.cc.umich.edu (Ed Vielmetti) (01/13/89)
In article <966@riddle.UUCP> domo@riddle.UUCP (Dominic Dunlop) writes: >[My understanding is that group 4 goes at 64 kbit/sec, and requires a >digital circuit (such as an ISDN connection). Right or wrong, anybody? >(Group 3 goes at 9600 bits/sec over a voice connection.)] I have the Group 4 Fax recommendation (T.5) in front of me. It states: "1.1 Group 4 facsimile apparatus is used mainly on public data networks (PDN) including circuit-switched, packet-switched, and the integrated services digital network (ISDN). The apparatus may be also used on the public switched telephone network (PSTN) where an appropriate modulation process will be utilized." --Ed