Xref: utzoo news.newusers.questions:2806 comp.dcom.modems:6743 Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!zaphod.mps.ohio-state.edu!mips!public!rah From: rah@public.BTR.COM (Richard A Hyde rah@btr.com) Newsgroups: news.newusers.questions,comp.dcom.modems Subject: Re: Modem Speed Message-ID: <410@public.BTR.COM> Date: 18 Sep 90 03:05:55 GMT References: <1664@gvgpvd.GVG.TEK.COM> <1990Aug30.023220.8554@ncsuvx.ncsu.edu> <659@texas.dk> <1990Sep4.150259.12379@savant.uucp> <887@stsim.ocs.com> <1898.26f4eb72@spacm1.uucp> Followup-To: news.newusers.questions Organization: BTR Public Access UNIX, MtnView CA, Contact: cs@btr.com 415-966-1429 Lines: 42 >In article <887@stsim.ocs.com>, fsb@stsim.ocs.com (Steve Brailsford) writes: >> I don't know if this is anything like what is being discussed, I just >> picked up this group, but I am looking into getting a 9600 modem and >> need some advice on what kind to get and what to look for. I seem to >> see that the V.32 seems to be a general standard for that rate, is this >> true? Should I bother with any of the other standards that might also >> come with that? I also hear about a 19.2K modem called Trailblazer, >> or is that some kind of protocol? I have seen some articles about how >> you can get 19.2K from 9600 V.32bis modems. I feel that it is very important to select a V.32 COMPLIANT modem if you are considering purchasing a 9.6 modem. COMPLIANT means IS, compatible means is LIKE. There is a world if difference. V.32 compliant modems will talk to other manufacturers V.32 compliant modems. Compatible modems will only talk to modems made by the same manufacturer. The major networks (commercial ones, anyway) are standardizing on V.32 with various levels of MNP. Accunet (whom I don't work for), is installing V.32 MNP 9 modems at all of their 9.6 nodes. Modems like the Telebit T2500 (which I like) will communicate with other V.32 compliant modems at 9600 bps. They will achieve 19.2 only with other Telebit modems. V.42 is supposed to create >9.6 speeds (using compression) among different manufacturers modems, but it doesn't appear to be reality quite yet. I use a Racal-Vadic 9632VP modem which also seems fairly robust, but I under- stand it has problems in MNP mode. Multi-Tech Multi modems also seem clean and easy to operate. Since I manage a datacom tech support team, this translates to "few complaints". You WILL have to read the manual of whatever modem you decide to buy, and get some help in configuring it to your needs. Factory configuration never quite seems to work... When you buy a modem, drop me a line if you have any questions... -Rick- -- ------------------------------------------------------------------------------ | Richard Hyde | RaH@btr.com | I don't need a disclaimer | ------------------------------------------------------------------------------