Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!cs.utexas.edu!uunet!netsys!vector!telecom-gateway
From: ch%maths.tcd.ie@cunyvm.cuny.edu (Charles Bryant)
Newsgroups: comp.dcom.telecom
Subject: Re: those {{{{{{{{{{{{ 's
Message-ID: <telecom-v09i0222m06@vector.dallas.tx.us>
Date: 30 Jun 89 20:27:50 GMT
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Reply-To: Charles Bryant <ch%maths.tcd.ie@cunyvm.cuny.edu>
Organization: Maths Dept., Trinity College, Dublin
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X-TELECOM-Digest: volume 9, issue 222, message 6 of 8

In article <telecom-v09i0211m01@vector.dallas.tx.us> boulder!sigi.Colorado.EDU.
colorado.edu!haleden@ncar.ucar.edu (Hal Eden) writes:

<X-TELECOM-Digest: volume 9, issue 211, message 1 of 7

<I'm sure that this has been discussed here before, so if you reply
<to me, that would be fine.

<Could someone give me a semi-technical explanation for those {{{{{{{{
<which appear as interference at 1200 baud?  I am going round and round
<with USWestComm about this.

When a V.22 (or Bell 212) modem gets a single bit error (when no data is
supposed to be being transmitted), this gets turned into a DEL character (which
normally is not seen on the screen) and a '{'. This is due to the scrambling
used with this type of modem (the scrambling is used to spread the frequencies
used).
<About a month ago a new office was installed in Boulder (apparently a
<DMS100 ? 3rd hand info) and ever since then I have had to re-call
<numerous times to get a "clean" line.  It seems that discussions I
<have seen in the past referred to something being "out-of-phase".
<What exactly is out of phase?  Whose responsibility is it?  How would
There should be nothing that can get 'out of phase'.

<so HELP, can someone educate me a little bet so that I can better
<communicate what the problem is AND perhaps point me to the sort of
<department within the operating company which would understand the
<problem and could do something about it?

You have described the problem perfectly. If you can get a clean line by
redialling it must be a problem between the exchanges (damn!).

cb
--

                Charles Bryant.
Working at Datacode Electronics Ltd. (Modem manufacturers)