Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!psuvax1!wuarchive!uunet!hayes!tnixon From: tnixon@hayes.uucp Newsgroups: comp.dcom.modems Subject: Re: Simple Question Message-ID: <3771.27b08719@hayes.uucp> Date: 6 Feb 91 22:45:45 GMT References: <1991Feb5.173340.12430@draco.macsch.com> Distribution: usa Organization: Hayes Microcomputer Products, Norcross, GA Lines: 23 In article <1991Feb5.173340.12430@draco.macsch.com>, swv@convex.is.macsch.com (Scott Vossler) writes: > Just a simple question : > > What does 'bis' mean in the V.22bis, V.32bis and V.42bis ? > The headquarters of the CCITT is in Geneva, Switzerland, which is a French-speaking area. "bis" is a French term which in some dictionaries is loosely defined as "encore" (it is, for example, the word shouted at concerts when you want to band to play another tune). In the CCITT context, it means "the second in a family of related Recommendations." "ter" means the third, etc. V.22bis is very similar to V.22, but adds more bits per symbol to acheive higher data rates; likewise with V.32 and V.32bis. V.42bis is a data compression scheme designed to be an extension of V.42. -- Toby Nixon, Principal Engineer | Voice +1-404-449-8791 Telex 151243420 Hayes Microcomputer Products Inc. | Fax +1-404-447-0178 CIS 70271,404 P.O. Box 105203 | UUCP uunet!hayes!tnixon AT&T !tnixon Atlanta, Georgia 30348 USA | Internet hayes!tnixon@uunet.uu.net