Newsgroups: comp.sys.apple2
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From: bird@cbnewsd.cb.att.com (j.l.walters)
Subject: Re: High speed modems, and stupid demos
Organization: AT&T
Date: Sun, 23 May 1993 20:09:20 GMT
Message-ID: <C7HxBn.Lyn@cbnewsd.cb.att.com>
References: <cfzlpXi00WCSI4VVBm@andrew.cmu.edu>
Lines: 50

From article <cfzlpXi00WCSI4VVBm@andrew.cmu.edu>, by "Seth D. Kadesh" <thes+@CMU.EDU>:
> Just got back from a week vacation, and found that my AT&T high speed
> modem was waiting for me.  It's pretty nice.
> 
> So now I'm looking at getting either Ansiterm 2.0, or Proterm 3.1.  I
> get both demos, and (surprise) neither demo has an entry called
> AT&T/Paradyne DataPort Modem.  I start up Ansiterm first, and it gives
> me a few helpful hints, like making sure that DSR handshaking is off
> in the control panel.  I succeeded in connecting at 19.2, but I lost
> characters all over the place.  Not cool.

As to getting it to work. You always have to use the generic
driver. Leave Greg mail on InTrec. He will write it if the demand is
there.

If you have a "normal" cable:

1. Generic driver
2. High speed init: AT&F\Q2X7E0S0=0
3. Low speed init:  AT&F\Q2X7E0S0=0\N0

If you have the InTrec hardware handshaking cable:

1. Generic driver
2. High speed init: AT&F\Q3X7E0S0=0
3. Low speed init:  AT&F\Q3X7E0S0=0\N0

Here is a quote from Greg on the subject when I complained that one BBS
I called did not give me the userid prompt, but moved onto the password
prompt.

"Most probably, it is that the modem is attempting to make an error
correcting correction which the remote BBS does not support. The error
correction codes tend to look like a logon attempt and are folling the
BBS into starting the logon procedure."

I modified all my systems so that the modem is initialized to either
the high or low speed init string prior to dialing. Seems to work fine.

		Joe Walters att!ihlpm!bird, NW 31-K14 (708) 224-7189
		To know, and not to do, is not yet to know
P.S.
I don't think the high speeds are ever part of the telecommunications
program as such. It is the two modems agreeing on a transfer protocol
that uses compression. For PT3 one should set all systems to 19,200
and let the modems and PT3 decide on the speed.
-- 

		Joe Walters att!ihlpm!bird, NW 31-K14 (708) 224-7189
		To know, and not to do, is not yet to know