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- Path: inforamp.net!ts49-12
- From: crs0794@inforamp.net (Geoffrey Welsh)
- Newsgroups: comp.dcom.modems
- Subject: Re: 512Kbps modem developed by Ericsson
- Date: 18 Apr 1996 03:40:23 GMT
- Organization: InfoRamp Inc., Toronto, Ontario (416) 363-9100
- Message-ID: <4l4dj7$968@sam.inforamp.net>
- References: <4k9grj$q2t@rubens.telebyte.nl> <4k9qem$fnf@sam.inforamp.net> <pjkDpw55L.Czt@netcom.com>
- NNTP-Posting-Host: ts49-12.tor.istar.ca
- X-Newsreader: News Xpress Version 1.0 Beta #4
-
- In article <pjkDpw55L.Czt@netcom.com>,
- pjk@netcom.com (Philip J. Koenig) wrote:
- >Geoffrey,
- >
- >What you say is perfectly logical given conventional wisdom, etc, and sounds
- >perfectly reasonable.
- >
- >However:
- >
- >Let me remind you that not so many years ago, people were saying the same
- >kinds of things about *9600 bps* connections, before the concept of
- >encoding multiple bits per baud using phase-shifting, constellations, and
- >so forth had been successfully demonstrated. (I'm speaking re: V.32, there
- >may be some other things predating this with somewhat different means, i.e.
- >PEP, etc.)
-
- I knew just such a person, a professor at a university who taught a data
- communications course and didn't believe that 9600 bps modems were possible
- until I lent him a pair.
-
- But there is a difference between people who don't know what they're talking
- about saying that something is impossible and people who _do_ understand the
- details saying that something is impossible. I don't claim to be such an
- expert when it comes to analog lines; who knows what encoding might be
- possible... but I do know one thing for sure: you can't get something for
- nothing. And getting more than 64 kbps raw data rate through today's
- digitized switches would require just that.
-
- I stand by my statement regarding 512 kbps modems and POTS lines... and I'll
- meet you in a specified number of years to hand over a case of beer (forgive
- me if that seems too small; here in Canada, a case of beer is worth betting)
- if such devices worked without requiring an upgrade of the public switched
- telephone network.
-
- --
- Geoffrey Welsh, Developer, InSystems Technologies Inc.
- Temporary: crs0794@inforamp.net; At work: insystem@pathcom.com
- At home: geoff@zswamp.uucp or [xenitec.on.ca|m2xenix.psg.com]!zswamp!geoff
- TYPING IN ALL CAPS IS GROUNDS FOR IMMEDIATE DISMISSAL.
-