31 Jul
2005
31 Jul
'05
4:08 p.m.
At 08:11 30/07/2005, Pete Bartusek wrote:
Just curious...has there ever been a device available
to anyone's knowledge
that functions like an analog phone line and allows transmission via TCPIP?
For example, taking an older BBS system that has 5 internal modems in it,
and plugging the lines into this "mystery" device and then being able to
telnet to different ports and it makes the connection to one of the ports?
It might be you just need a terminal server with dial-out capability and
modems, or one with built in modems.
Then to link it to your BBS, you need a line emulator.. I've had success
with just hooking modems back to back, at times, sometimes with a 9V
battery to assist with line current detection (there are circuits about to
show how to wire this properly!) but if your answering modems are picky on
the ring signal (and can't detect e.g. a pulse-dial as a ring) then you
need something a bit more clever to make the ring signal.
It's often easier, and I've done this when testing things in the past, to
pick up an old, small, PABX second hand dirt cheap, which you can use
stand-alone, dialing extension->extension.
Rob