Newsgroups: comp.dcom.modems
Path: utzoo!henry
From: henry@utzoo.uucp (Henry Spencer)
Subject: Re: UUUUUUUUUUUUUU's from Anchor Automation modem
Message-ID: <1989Jul1.235419.29237@utzoo.uucp>
Organization: U of Toronto Zoology
References: <159@seachg.UUCP>
Date: Sat, 1 Jul 89 23:54:19 GMT

In article <159@seachg.UUCP> root@seachg.UUCP (root) writes:
>...responds with a string of about 40 U's, even though it has established the
>connection...

What is happening is that the modem on the other end is being kicked into
one of the self-test modes by noise or some other complication.  The UUUU
pattern ("the marching umber hulks") is what you get in that mode at 1200.
(At 2400 it's wwww.)

All modems meant for answer use in normal environments really should have
remote initiation of self-test disabled.  It's more a bug than a feature.
I don't know of anything that can be done from the originate end to avoid
this nuisance.
-- 
$10 million equals 18 PM       |     Henry Spencer at U of Toronto Zoology
(Pentagon-Minutes). -Tom Neff  | uunet!attcan!utzoo!henry henry@zoo.toronto.edu