Path: utzoo!attcan!uunet!lll-winken!lll-lcc!ncis.llnl.gov!helios.ee.lbl.gov!nosc!ucsd!rutgers!att!pacbell!ditka!cocktrice!mdm
From: mdm@cocktrice.UUCP (Mike Mitchell)
Newsgroups: comp.unix.microport
Subject: Dropping DTR?
Message-ID: <362@cocktrice.UUCP>
Date: 21 Jan 89 20:23:24 GMT
Reply-To: mdm@cocktrice.UUCP (Mike Mitchell)
Organization: Mike's Playground, Santa Fe, New Mexico
Lines: 15

Does anyone have a fancy trick for lowering DTR going to a modem attached
to tty0? I have my modem set up to auto answer, however there are times
that I do not want the modem to answer the phone.

I can start a getty running on /dev/ttyM0 and the DTR comes up. When I kill
the getty, the DTR drops for a moment and then comes up again. The modem
still answers the phone, but there is nothing running to accept logins.

If I do not run a getty, the DTR behaves "properly" when making outgoing
calls. UUCP will dial out and connect and when it is finished the DTR is
dropped when /dev/tty0 is closed.
-- 
Mike Mitchell				BELL:	(505) 471-7639
2020 Calle Lorca #43			ARPA:	mdm@cocktrice.UUCP
Santa Fe, NM 87505			UUCP:	...!uunet!dmk3b1!cocktrice!mdm