Apple GeoPort Telecom Adapter Kit - Manual (Page 42)

Choosing the port setting
(Apple Serial Modem only)
If you are using a serial modem, such as a PC Card modem,
then after you connect it to your computer you need to
choose the port setting in the Apple Serial Modem control
panel. This tells the Apple Serial Modem software the
location of the modem.
To choose the port setting
1 Open the Apple Serial Modem control panel.
The control panel appears. The Modem field displays the
name of the modem hardware.
2 Choose the port where the modem is attached to the
computer from the Port pop-up menu.
Using data communications programs
Choose the logical port setting “Data Port” in the connection
settings of your data communications programs. This setting
allows you to open a data connection while your fax and
voice programs are set to auto-answer.
Fax and voice activity is suspended while a data connection
is open. After the data connection is closed, control of the
modem returns to the fax and voice programs.
If you do not use the “Data Port” setting, then attempting to
open a data connection with fax or voice set to auto-answer
produces a “Modem in use” error message.
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