Date: Wed, 05 Apr 1995 11:35:24 EST From: "M.C Wong" <mcw@hpato.aus.hp.com> To: ghelmer@alpha.dsu.edu (Guy Helmer) Cc: shane@et.pronex.com, questions@FreeBSD.org Subject: Re: modems Message-ID: <199504050135.AA171285739@hp.com> In-Reply-To: <Pine.OSF.3.91.950403092106.29025E-100000@alpha.dsu.edu>; from "Guy Helmer" at Apr 3, 95 9:37 am
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> > On Sat, 1 Apr 1995, Shane Anderson wrote: > > > Well, I have taken the kind comments and suggestions and continued > > to try to get a dial in connection, but to no avail. Neither my > > microcomm 28.8 nor my viva 14.4 (19200) will work. They both > > answer the phone fine and establish a connection, but high-order > > garbage is still the order of the day. > > A problem I've seen is not locking the dialing modem at the terminal's > speed; it appears when a high-speed connection is made, the modem's serial > port speed seems indeterminate depending on the type of connection (in > particular, I've seen this problem with a 28.8 modem to 14.4 modem and a > 14.4 to 28.8). On the USR Sportsters I'm familiar with, "AT&B1" locks the > modem's serial port at the data rate used to issue the command, and it has > solved the problems I've seen here... > I have had the similar problems here with both different ways of dial-in : 1) Using a Tektronics XT-320 in VT-100 mode connected to a Netcomm V.34 modem and dial in to a FreeBSD box also connected to a same brand and model V.34 modem. Tried 2400,4800,9600,19200 on the dump terminal. Using AT command to dial in. 2) From a 1.1.5.1 box connected to a Dynalink 14.4K modem and dial-in to the above FreeBSD box. Using kermit to dial in. In both case upon connection I get either : a) No login prompt, absolutely nothing. After a few minutes wait and many key presses, I start getting garbage characters. b) Get garbage characters straight away, and upon key press, more garbage characters. I tried the suggestions above by AT&B1, but that doesn't help either, 8-(( The only thing that seens to work for 1) from a dumb terminal is that I kill the getty job running at the dial-in port /dev/ttyd1 (COM2), and have it respawned, and I get a nice login prompt in a few seconds! Any more advices or suggestions ? Thanksin advance.
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