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000129_news@columbia.edu _Fri Oct 1 12:22:11 1999.msg
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From: fdc@watsun.cc.columbia.edu (Frank da Cruz)
Subject: Re: Modem Reset
Date: 1 Oct 1999 16:18:40 GMT
Organization: Columbia University
Message-ID: <7t2mt0$n7h$1@newsmaster.cc.columbia.edu>
To: kermit.misc@columbia.edu
In article <37f4ccff.0@nnrp1.news.uk.psi.net>,
Tim O'Shea <timos@bigfoot.com> wrote:
: When using the alphapage script to send messages to a TAP Pager, the
: modem is either not reset, or is reset incorrectly, specifically, it
: won't allow dial-in operations after sending the pager message. How do
: I amend the alphapage script to perform a reset to stored profile 0 after
: the message has been sent?
:
You are doing this on Unix? As you can guess, bidirectional ttys are a
horrible nightmare in Unix. Each Unix platform handles them differently,
if at all, and the modem must be configured with extreme care to (inter
alia) automatically restore some custom preloaded profile from NVRAM
whenever a call hangs up. And then getty (mgetty, uugetty, etc etc blah
blah) is supposed to notice when this happens and seize control of the
modem once again. The dialout program should not need to know anything
about this, and how could it? Setups like this are always site-specific,
platform- specific, and modem-specific.
So the real answer is to look elsewhere: in the modem configuration and in
the platform's configuration for the device.
Of course you can always change the script to do something like:
set carrier-watch off
output AT&F0S0=1\13
or somesuch after hanging up the call, but that will break if the modem
changes.
- Frank