Apple GeoPort Telecom Adapter Kit - Manual (Page 45)

The checkbox and ring number field override the
auto-answer setting of any communications program that
uses the modem software. If you want to receive calls in any
of your communications programs, make sure that this
checkbox is selected and the number of rings specified.
If you want to prevent your modem from answering
incoming calls, deselect the checkbox. If you do this, the
modem will not answer calls even if other communications
programs are set to auto-answer.
Note: If your modem shares the same line with your
telephone, and you want to make sure that the modem does
not answer your incoming calls before you do, you can
either deselect the “Auto-answer incoming calls” checkbox
or set the number of rings to a high value.
Call Saver mode
You can use Call Saver mode to save money on connection
charges when retrieving voice messages remotely from your
voice mail. If there are new messages and Call Saver mode is
selected, the modem answers at the number of rings set in
the Call Saver ring number field. If the modem does not
answer after the Call Saver ring number setting, you still have
time to hang up.
In order to use Call Saver mode correctly, the value in the
Call Saver ring number field must be at least two rings less
than the value in the auto-answer ring number field. For
example, you can set auto-answer to 5 rings and Call Saver to
2 rings. If your voice mail does not respond by the third ring,
then you know that there are no new messages.
45 Using Your Modem