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Article #264

2400 Packard Bell Modem Grabs Line

#264
From: Ryan K. Williams
Date: Wed, 18 Sep 1996 00:00
40 lines
2406 bytes

I recently posted about a problem w/ my modem and wanted to add
some information in hopes of getting a solution ....

The modem is (I think) a 2400 baud (internal) that came w/ a
Packard Bell 486 SX computer.  I am strictly in DOS and have
been using DOS-based Qmodem w/ no problems.  Recently, I was
playing around sending various commands to the modem (which
I was getting from a USRobitics booklet to see which worked
for the 2400 ....)

Anyway, everytime I turn my computer on, the modem (apparently)
takes the phone off the hook.  If I use "atz" as my init string
when I start up Qmodem, then type "at&v" to see what the modem
settings are, I notice &C0 and &D0.  I suspect that my problem
is here .....  I can init w/ &c1 and &d2, and then "at&v" shows
the change, but I still can't hang my modem up with "ath" or "ath0".

Can someone offer some solution?  Specifically, (in layman's terms)
can someone let me know how &C and &D work?  I know what my modem
book says (something about DTR, etc), but I don't understand.
Secondly, it would seem that the default modem setup is setting
&C0 and &D0 which is causing my problem (opinions on this theory?)
-- how can I change this?  I've tried typing the init string I like
(AT E1 Q0 X4 &C1 &D2) then typing (AT &W) or (AT &W1) or (AT &W2)
hoping to write to the modem's default settings, but when I init
w/ "atz" again, I get &C0 and &D0 ......

Any help is appreciated (email is preferred ......)

Thanks.
ryan


-- 
....................................................................
     Ryan Kenneth Williams           |      gt0323b@prism.gatech.edu
Philippians 2:11  ...and that every tongue should confess that Jesus
                    Christ is Lord, to the glory of God the Father.
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From: gt0323b@prism.gatech.edu (Ryan K. Williams)
Subject: 2400 Packard Bell Modem Grabs Line
Date: 1996/09/18
Message-ID: <51pejs$mnp@acmez.gatech.edu>
X-Deja-AN: 181416453
organization: Georgia Institute of Technology
newsgroups: comp.sys.ibm.pc.hardware.comm,comp.sys.ibm.pc.hardware.misc,git.oit.questions