09-09-2012
You can't connect two modems jack-to-jack and expect them to work, you're missing something important, the telephone company. You'd need something odd like long-haul modems to connect without a telco.
I read an article in a magazine long ago -- might have been Popular Electronics -- schematics for a device which would do this; a sort of telephone-company-in-a-box. It would generate dialtones and react to a number being dialed on one end by ringing on the other, but it was a big and complicated device due to the high voltages needed to drive telephone lines and the complexity of having to understand DTMF audio. They could probably miniaturize it further these days, but most hobbyists don't care about POTS anymore.
Last edited by Corona688; 09-09-2012 at 04:13 PM..
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LEARN ABOUT PHP
faxanswer
FAXANSWER(8) System Manager's Manual FAXANSWER(8)
NAME
faxanswer - tell a HylaFAX server to answer the telephone
SYNOPSIS
/usr/sbin/faxanswer [ -q queue-dir ] [ -h how ] modem
DESCRIPTION
faxanswer sends a message to the HylaFAX faxgetty(8) process servicing modem telling it to answer the telephone. This is useful, for exam-
ple, when a modem is used on a shared phone line and the server is configured to not normally answer the phone.
The specified modem can either be the name (typically the last component of the terminal port the modem is attached to), or the full name
of the associated FIFO named pipe file, e.g. ``FIFO.ttym2''.
OPTIONS
-q dir Use a spooling area other than /var/spool/hylafax.
-h Specify exactly how the phone should be answered. By default, the server process is instructed to answer the phone and accept
any kind of call (voice, data, fax). Discrimination of the type of call is dependent on a modem's adaptive-answer support. The
-h option can be used to force the server to answer the phone for particular type of call: one of fax, data, voice, any, extern
(to force faxgetty to invoke an external application to to handle the call), or dialX (where X is a dialstring to dial before
initiating a fax reception). If using dialX, the specified dialstring will likely need to end with a semicolon (``;'').
FILES
/var/spool/hylafax default spooling area
/var/spool/hylafax/FIFO fifo for contacting faxq
Consult hylafax-server(5) for a complete discussion of the structure and content of the spooling area.
SEE ALSO
hylafax-server(5), faxgetty(8)
May 23, 1996 FAXANSWER(8)