Path: utzoo!news-server.csri.toronto.edu!cs.utexas.edu!uwm.edu!zaphod.mps.ohio-state.edu!sol.ctr.columbia.edu!emory!rsiatl!nanovx!msa3b!kevin
From: kevin@msa3b.UUCP (Kevin P. Kleinfelter)
Newsgroups: comp.dcom.modems
Subject: Re: Hayes Smartmodem 9600 troubles
Message-ID: <1552@msa3b.UUCP>
Date: 4 Mar 91 14:56:11 GMT
References: <1991Mar4.025731.21550@ping.chi.il.us>
Organization: Dun and Bradstreet Software, Inc., Atlanta, GA
Lines: 47

gorpong@ping.chi.il.us (Gordon C. Galligher) writes:

>Please forgive me if this is the wrong newsgroup, and if it is, then
>just hit 'r' and tell me where the right one is and I will go away.

>I have been evaluating Hayes Smartmodem 9600 V.42 modems, and have had some
>interesting results.  Going UUCP, the modems connect at 9600, and have their
>distinctive connect tones, but the best throughput on the line has been 311
>characters per second (for a 121 K file).  Is there a special UUCP setup that
>these modems require in order to get speeds comparable of a 9600 modem?  I
>may be wrong, but I was under the impression that 9600 baud means 960 cps.
>I realize that 960cps is a total dream-world, but I am only getting 1/3 of
>that, and 2/3 overhead for uucico communication is hardly what I would
>expect.

If your machine supports RTS/CTS flow control, I recommend setting your
9600 to 19200. This will speed things up. We use Hayes 9600 modems with
our in-house protocol, and find them faster than many other modem (strictly
on our in-house protocol, which we tweaked).

>Next question:  Am I correct in thinking that there is no way to get the
>modem to connect 9600 to anything but another Hayes?  How can modem companies
>get away with this proprietary-ism when so many people are screaming for
>open systems?  We want open systems, but we settle for proprietary connections
>between them?  This is absurd! ...

Not absurd, just unfortunate. Before there was a V.32, we upgraded to
19200 using the Hayes 9600 V-Series. We had several hundred clients purchase
these modems. We now have to support those clients. (So we have purchased
a bunch of Hayes Ultra modems, to support the old and the new.) Similar
logic applies to other manufacturers' proprietary protocols.

Then you have things like the Telebit spoofing -- once again, there is no
standard for spoofing modems.  It takes two of the same manufacturer's modems
to get the speedup. If the community demands it, a standard can be created
for just about anything, including spoofing over V.32.

The nature of innovation is that it usually occurs before standardization.
When you want to do something better than the existing standard, you go
off and do it, and then try to get your way declared to be a standard.
Other people do the same.  The standard grows from the combined experience
of the innovators.
-- 
Kevin Kleinfelter @ Dun and Bradstreet Software, Inc (404) 239-2347
{emory,gatech}!nanovx!msa3b!kevin

Look closely at the return address.  It is nanovx and NOT nanovAx.