GPFax
Rob,
The sending fax dials the number; and begins transmitting a CNG tone
as soon as a connection is made..in other words, it begins
transmitting a tone as soon as the answering machine answers. The
supra modem should be snooping the line at this point; when it hears
the tone, it takes over the line (disconnecting the answering
machine) and sends a rapid series of "RING" signals to GPFax. (That's
why GPFax should be set at least two rings above the number it takes
to set off the answering machine.) GPFax then "tells" the Supra to
begin transmitting it's own CNG tone. The two modems negotiate the
baud rate at that point and when all it settled, GPFax and the supra
begin accepting the incoming fax.
The problem arises because the supra can only snoop for very brief
periods between rings and it is very possible for it to miss the CNG
tones from the sending fax. So, as it now stands, silent answer is a
sometimes thing. Supra recognizes the problem and has promised a fix
in the about-to-be-released ROM set.
Sometimes it works and sometimes it don't…and that's the way it is
for now.
Hope this helps clear things up for you.