> I have an office in the same building were I live
> and I have a terminal with a modem at home and in my
> my office. Both terminals have a modem (one is Hayes
> the other Supra), and both modems are connected to the
> same telephone line.
> The problem I would like to solve, is to have both
> terminals active, I mean displaying the same incoming
> text, at the same time and sending commands to the
> host computer.
There's no way to do this with full-duplex modems (that transmit
their carriers continuously); they will always interfere with each
What you could do is put the two terminals on some kind of sharing
device on the EIA-232 side of a SINGLE modem. But that would mean
running an EIA-232 cable from one to the other, which might not be
possible within the building.
The other suggestion would be to figure out some way to bump the
other station off the line, if you find you gone home and left the
office computer connected, or vice-versa. I find that oftentime
simply going off-hook with a telephone and mashing a few touch-tones
will confuse one modem or the other enough to cause them to think
they've lost carrier and hang up. Another alternative would be get
Call Waiting on the modem phone line, and set your S10 register a
little bit lower; then, to cause a disconnect, just call the modem
line from another phone, which will cause a Call Waiting beep and
thus a disconnection.
Another thing you could do is set up some kind of "inactivity timer"
so that if the link sits unused for more than a few minutes that it
will be automatically disconnected. This is a feature of many
modems, but you could also set it up on the host side or in your PC
software (some packages). I know, for example, that our Vax here
will log you off if you don't type anything for several minutes (it
warns you first).
But, of course, the easiest thing (and the safest, from a security
point of view) is to just always remember to log off whenever you
leave your office or home.
Toby Nixon, Principal Engineer | Voice +1-404-840-9200 Telex 401243420
Hayes Microcomputer Products, Inc. | Fax +1-404-447-0178 CIS 70271,404
P.O. Box 105203 | BBS +1-404-446-6336 AT&T !tnixon
Atlanta, Georgia 30348 | UUCP uunet!hayes!tnixon Fido 1:114/15