Apple GeoPort Telecom Adapter Kit - Manual (Page 41)

Turning the modem on and off
(Express Modem only)
If the Express Modem software is off, it is turned on
automatically when a program needs it for an outgoing
communication. But while it is on the modem uses about
600K of system memory, so you may want to turn it off when
you do not need it. The On/Off buttons in the Express
Modem control panel indicate whether the modem software
is running.
Important Remember that turning the modem off
overrides the auto-answer setting of any communications
program that uses the Express Modem software. You will not
be able to receive incoming calls with the modem off.
To turn the modem off
1 Open the Express Modem control panel.
The control panel appears.
2 Click the Off button.
The following alert appears.
3 Click OK to turn the modem off.
41 Using Your Modem