24 Aug
2010
24 Aug
'10
5:28 p.m.
On Tuesday (08/24/2010 at 03:21PM -0700), Fred Cisin wrote:
If you want to be able to test the dialing
capabilities, then you need to
fake a dial-tone, a ringing signal, and a busy signal at least.
Phone line simulators do exist. I use one that was a "project" in
Radio-Electronics? about 15 years ago.
I use one of these, Teltone TLS-5,
http://www.teltone.com/products/simulators/tls5/home.htm
(actually the model TLS-4, which a friend loned to me) I have a
collection of acoustic coupled terminal devices and modems here so I
actually use an old AT&T deskset telephone to originate calls to a POTS
line smart modem connected to a terminal server. From there I can get
to numerous Linux boxes running various emulators (DEC PDP RT-11, RSX,
CDC NOS, etc) and other vintage systems depending on what we want to
play^H^H^H^H test with.
~.~~NO CARRIER
Chris
--
Chris Elmquist