Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!uunet!seismo!rochester!pt!andrew.cmu.edu!mw3s+ From: mw3s+@andrew.cmu.edu (Martin Weiss) Newsgroups: comp.sys.ibm.pc Subject: Re: 2400 baud modems and their specifications Message-ID:Date: Wed, 22-Jul-87 10:10:48 EDT Article-I.D.: andrew.wV1ATcy00WE3NW80=r Posted: Wed Jul 22 10:10:48 1987 Date-Received: Fri, 24-Jul-87 04:49:25 EDT Organization: Carnegie Mellon University Lines: 9 In-Reply-To: <3889@cbosgd.ATT.COM> I assume you are referring to the 2400 baud dialup standard, V.22bis. There is another, used primarily in France, called V.26ter that makes use of echo cancellation. These spec's are available from the Department of Commerce (Springfield, Va.) or from Omnicom, Inc. (Vienna, Va.), and are contained in the CCITT Red Book. You only need to order the book for Study Group XVII, which is concerned with modem standards. This book contains the full text, in English of all of the current CCITT standards (except V.33, a 14.4 kbps leased line standard). It will set you back about $25.00. I don't have the detailed addresses handy right now, but can get them if you need them.