Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!mailrus!accuvax.nwu.edu!nucsrl!telecom-request From: scp@bpa.bell-atl.com (Steve Parowski) Newsgroups: comp.dcom.telecom Subject: Re: Data Over Voice Message-ID: <2106@accuvax.nwu.edu> Date: 11 Dec 89 21:37:31 GMT Sender: news@accuvax.nwu.edu Reply-To: scp@bpa.bell-atl.com Organization: Bell Atlantic Corporation Lines: 34 Approved: Telecom@eecs.nwu.edu X-Submissions-To: telecom@eecs.nwu.edu X-Administrivia-To: telecom-request@eecs.nwu.edu X-Telecom-Digest: Volume 9, Issue 570, message 1 of 8 In article <1978@accuvax.nwu.edu> Richard Steele writes: >X-Telecom-Digest: Volume 9, Issue 561, message 5 of 5 >Here at Purdue U., we now have access to something called data over >voice (DOV) units. These are small boxes, about the size of a regular >modem, that gives the user a 9600 bps asynchronous data line to the >University computer. Not only is the bugger faster than a modem, _but >it leaves the phone free for regular use_. We can still receive and >make calls with the DOV working with no obvious distortion on the line. >Question: How would something like this work? The phone company >_does_ need to make some changes on their end, but the phone line >remains the same. >So, what magic is involved here? Thanks to all who respond... Here in Bell Atlantic we offer this as a tarriffed service it is called LANgate or Central Office Local Area Network. See your local sales rep for prices. How it works...... That box that has jacks for your phone and your terminal converts your terminal signal from digital to analog. The box then Frequency multiplexes your voice and the analog data onto the same copper pair. At the Purdue Central Office this process is reversed. This is an excellent way to provide 9600 bps without wiring changes or expensive modems. Steve Parowski Wal La