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000081_news@columbia.edu _Thu Oct 19 22:09:44 2000.msg
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From: Mark Sapiro <msapiro@value.net>
Subject: Re: No Carrier
Date: 20 Oct 2000 02:06:22 GMT
Organization: Not Very Much
Message-ID: <8so9au$ie0$1@news.value.net>
To: kermit.misc@columbia.edu
Jeffrey Altman <jaltman@watsun.cc.columbia.edu> wrote:
| In article <9jGH5.66100$bI6.2391998@news1.giganews.com>,
| Steve <steve@baus-systems.com> wrote:
| :
| : The problem is if we are going
| : over a modem, the phone line is dropped when we exit K95.
| If you put a breakout box on the serial port you will see that the
| Windows serial port driver drops the DTR signal every time the device
| is closed. The device is closed each and everytime K95 terminates
| unless the device handle was passed to K95 when it is started. When
| DTR is dropped the modem hangs up the phone call.
At least some modems can be set to ignore the DTR signal and not
drop carrier when DTR drops. The 'AT' command to tell the modem
to ignore DTR is usually '&D0'.
Of course if you use this option, you can't use DTR to tell the
modem to answer a ring. You have to tell the modem to auto
answer after n rings (usually with'S0=n').
These commands can be in the modem init string.
--
Mark Sapiro <msapiro@value.net> The highway is for gamblers,
San Francisco Bay Area, California better use your sense - B. Dylan