Rephrasing Analog Modem Question

[Jochen Kunz]

On Tue, 2 Aug 2005 10:34:17 -0500
"Pete Bartusek" <pbmain at wideopenwest.com> wrote:

> With the reverse telnet concept, that would work if I could change my
> computer's modem  pool to external serial devices (get rid of the
> analog).  I can't do that yet..
Get a terminal server with "reverse telnet" capability that rises DTR on
the serial port if someone telnets to the corresponding TCP port. [1]

Get modems with "dial on DTR" function and connect them to the serial
ports of the terminal server. E.g. my old US Robotics Courier can do
this.

Get an old analog PBX. Connect your BBS system and the modems hanging
from the terminal server to it.

Programm terminal server and modems, setup PBX.

Done.

If someone opens a telnet session to a port of the terminal server the
modem "dial out" is triggered by the DTR signal. The modem dials the
number stored in its NVRAM. The PBX connects the modem to a line of your
BBS system. The BBS systems gets an incomming call... CONNECT! :-)

[1] My terminal server does this. I use the DTR signals to control solid
state relais. That way I can remote power cycle the machine thats
console is connected to the corresponding serial port.
-- 


tschüß,
       Jochen

Homepage: http://www.unixag-kl.fh-kl.de/~jkunz/