24 Aug
2010
24 Aug
'10
12:08 p.m.
PBX Simulators, different makes and models out there and while currently
it appears the ones on ebay cost more than it would new, they can
usually be obtained for a reasonable cost. The models I've used have a
handful of POTS jacks, 4 or 8 of them, and it gives basic tone and dial,
you just dial 1 for POTS 1, etc.
On 8/24/2010 10:51 AM, Jim Scheef wrote:
Hello all,
I would like to play^H^H^H^H use some of my vintage portables the way
they were intended. For example, the Radio Shack Model 100 and the HP
110 Portable have 300bps internal modems. I have several other modems
thru which these machines could talk to a *NIX but I do not want to
pay for multiple phone lines in my home. How can I simulate a POTS
connection between these modems? I don't need a dial tone or ringing,
etc., as I can just tell one machine to connect and the other to
answer. Way back I heard that a few modems would work if the tip and
ring wires of the modems were crossed and connected, but most need
something more than that. Is there some simple circuit I could build?
Surely I'm not the first to want to avoid phone bills for such
play^H^H^H^H testing.
Jim