Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!seismo!lll-crg!lll-lcc!ptsfa!amdahl!amdcad!phil From: phil@amdcad.UUCP (Phil Ngai) Newsgroups: comp.dcom.modems Subject: Re: > 9600 bps over conditioned leased lines? Message-ID: <13771@amdcad.UUCP> Date: Sat, 15-Nov-86 15:07:18 EST Article-I.D.: amdcad.13771 Posted: Sat Nov 15 15:07:18 1986 Date-Received: Sun, 16-Nov-86 01:39:37 EST References: <28@halleys.UUCP> <2942@cbosgd.ATT.COM> <129@olamb.UUCP> Reply-To: phil@amdcad.UUCP (Phil Ngai) Organization: Advanced Micro Devices, Sunnyvale, California Lines: 27 Keywords: recurring costs In article <129@olamb.UUCP> kimcm@olamb.UUCP (Kim Chr. Madsen) writes: >In article <2942@cbosgd.ATT.COM>, mark@cbosgd.ATT.COM (Mark Horton) writes: >> I haven't followed it closely, but yesterday a salesperson pointed >> at a TeleByte modem, said the cost was $3500 each, and that it did >> 19.2K over regular dialup lines. Part of this is probably done with >> data compression, so it may not help your application. > >Well, at our offices we use a DOV-Modem (Data Over Voice) which is able to >talk between our two UNIX boxes at 0-19200 Baud (Asyncronous) or (600,1200, >2400,4800,9600,19200 Baud Syncronous) Let's talk apples and oranges here. DOV only works if you have a metallic path. When Mark Horton says dialup lines, he's talking about a communications path with bandwidth between (roughly) 300 to 3000 Hz. The methods used to communicate over a few hundred feet are quite different from the ones used to communicate across the world. I would have to add that I don't like Telebyte style modems either. I would rather have a real modem, like the V.32 style. -- The VT220 keyboard is an