Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!accuvax.nwu.edu!nucsrl!telecom-request
From: Steve Elias <eli@spdcc.com>
Newsgroups: comp.dcom.telecom
Subject: Re: Data Over Voice
Message-ID: <2003@accuvax.nwu.edu>
Date: 10 Dec 89 16:19:11 GMT
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Reply-To: Steve Elias <eli@ursa-major.spdcc.com>
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X-Telecom-Digest: Volume 9, Issue 564, message 7 of 8


 Richard Steele <steele@en.ecn.purdue.edu> writes:

>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_. 

>So, what magic is involved here?  Thanks to all who respond...

Try screaming into the phone while you are watching 960 cps output on
your CRT...  does the data rate slow?

I think there are some nifty boxes out there which will encode the
voice digitally and use any excess digital bandwidth for other data.
Maybe this is the sort of device Purdue has given you.

Now for the next step, you must TAKE IT APART, of course!  The sign of
a truly curious engineer.  what are the labels On the outside of the
box and on internal boards ?


Steve Elias ; eli@spdcc.com ; 6179325598 ; 5086717556 ; { *disclaimer(); }