Xref: utzoo comp.unix.microport:2744 comp.dcom.modems:3295
Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cornell!uw-beaver!blake!ogccse!littlei!uunet!amgraf!brian386!news
From: news@brian386.UUCP (Wm. Brian McCane)
Newsgroups: comp.unix.microport,comp.dcom.modems
Subject: Re: modem problem
Keywords: +++, command mode, USR Direct 2400, uugetty, 3.0e, HDB
Message-ID: <246@brian386.UUCP>
Date: 29 Jan 89 21:10:07 GMT
References: <787@hawkmoon.MN.ORG>
Reply-To: news@brian386.UUCP (Wm. Brian McCane)
Organization: Harmon Electronics, Inc  Grain Valley, MO
Lines: 43

In article <787@hawkmoon.MN.ORG> root@hawkmoon.MN.ORG (Admin) writes:
>Ok -- here's the scoop.  I'm calling the site "elric" (with Uutry) and i'm doing
>it over a bidirectional serial port, /dev/cul0, using uugetty:
>
> [ deleted ]
>
> As soon as i issue the +++, the carrier drops the carrier like a hot
>potato.  What the heck am i doing wrong here?  The USR manual mentions nothing
>like:
>	"As soon as the +++ is entered the modem not only
>	 enters the  command state,  but also  immediatly
>	 drops the carrier like a hot potato"
>
>Has anyone else run into this or is this just yet another fundamental mis-
>understanding of the way the modem/uugetty is supposed to work (not a terribly
>unusual situation, i might add (:-)) 
>
>usrpwc24  =W-,  "" \r\r\r\r\dATZ "" ATV1Q0E1 "" AT
>OK-\d\d+++\d\dATH\r\dATV1Q0E1-OK ATX6M0DTW6816634 CONNECT\s2400 \r ""
>\d\d+++\d\d OK ATQ1V0E0 "" ATO "" \r tion:--tion: \D\r\c
>Connected-\r\d\D\r\c-Connected--in:--in:

I cut out most of the boring stuff.  Anyway, your problems are many fold 
I believe.  First, the modem at the other end, is most likely using your
same ESCAPE code "+++".  So it also enters command mode when it gets
this message.  So even if you do get most of the other rather involved
instructions to work, he is now ignoring you.  Second, I have had to put
a \d between my escape characters for the necessary time out.  My
version of your dialup script would be:

usrpwc24	=W-, "" \r\rATZ "" ATV1Q0E1S2=27 OK\r AT OK\r
ATX6M0DTW6816634 CONNECT\s2400 \r "" \d\d\033\d\033\d\033 OK\r
ATQ1V0E0S2=43O "" \010\010\010\r tion:--tion: \D\r\c
Connected-\r\d\D\r\c-Connected--in:--in:

Okay, so I cut out some of the embellishments, but you get the picture.
I first set my escape code to something else, and then I dial the name
and use my new escape code to get back to command mode.  Then I reset it
to the original.  I hope this helps.  (By the way, this is how I do it
too.  If my modem is not gagged, it picks up then phone and immediately
hangs up again.)

			brian