From owner-freebsd-current Sun Jan 12 18:42:59 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.4/8.8.4) id SAA13362 for current-outgoing; Sun, 12 Jan 1997 18:42:59 -0800 (PST) Received: from po2.glue.umd.edu (root@po2.glue.umd.edu [129.2.128.45]) by freefall.freebsd.org (8.8.4/8.8.4) with ESMTP id SAA13341; Sun, 12 Jan 1997 18:42:51 -0800 (PST) Received: from uplink.eng.umd.edu (uplink.eng.umd.edu [129.2.98.181]) by po2.glue.umd.edu (8.8.3/8.7.3) with ESMTP id VAA15799; Sun, 12 Jan 1997 21:42:48 -0500 (EST) Received: from localhost (chuckr@localhost) by uplink.eng.umd.edu (8.8.3/8.7.3) with SMTP id VAA13238; Sun, 12 Jan 1997 21:42:47 -0500 (EST) X-Authentication-Warning: uplink.eng.umd.edu: chuckr owned process doing -bs Date: Sun, 12 Jan 1997 21:42:47 -0500 (EST) From: Chuck Robey X-Sender: chuckr@uplink.eng.umd.edu To: Frank Durda IV cc: nate@mt.sri.com, freebsd-questions@FreeBSD.org, freebsd-current@FreeBSD.org, freebsd-stable@FreeBSD.org Subject: Re: User ppp not hanging up modem. In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-current@FreeBSD.org X-Loop: FreeBSD.org Precedence: bulk On Sun, 12 Jan 1997, Frank Durda IV wrote: > > [14]On Sat, 21 Dec 1996 dicen@hooked.net wrote: > [14]Note that the standard command "&D3" tells the modem to reset itself when > [14]DTR drops. Nate's right, this _is_ standard. > > I have been modem designs for three years, so you have stepped into > an area where I have some expertise. > > Unfortunately, &D3 is not a standard. EIA 602, the AT command set > standard (as opposed to a vendors reference modem standard) includes only > &D0, &D1, and &D2. Many major brands including Sportsters, either do > not support &D3 or don't store it in EEPROM, making it useless. I have a Sportster, the manual is open in front of me, and that's NOT true, it DOES have &D3. If its specified on dialup, then it will work on disconnect (with or without eeprom storage). > > If available, &D3 or a given modem makers functional equivalent command > is the best way to go for all serial modem sessions, since it guarantees > that no settings from one call persist to the next. Everybody gets a > clean slate. > > &D2 is the next best available choice. If all you have is &D2, add a > ATZ to the hang-up or dial-out script to obtain functionality close to > what &D3 would have provided. > > Frank Durda IV |"The Knights who say "LETNi" > or uhclem%nemesis@rwsystr.nkn.net | demand... A SEGMENT REGISTER!!!" > |"A what?" > or ...letni!rwsys!nemesis!uhclem |"LETNi! LETNi! LETNi!" - 1983 > > ----------------------------+----------------------------------------------- Chuck Robey | Interests include any kind of voice or data chuckr@eng.umd.edu | communications topic, C programming, and Unix. 9120 Edmonston Ct #302 | Greenbelt, MD 20770 | I run Journey2 and picnic, both FreeBSD (301) 220-2114 | version 3.0 current -- and great FUN! ----------------------------+-----------------------------------------------