Apple Express Fax/Modem - Manual (Page 78)

The Fax Terminal window appears.
2 Look for the blinking arrow above the icon in the Status box.
Receiving a fax while you're working
If you set Show Fax Terminal Window in Fax Terminal Preferences and you are
working at your Macintosh, the Fax Terminal status field indicates the
progression of a fax received.
66 C H A P T E R F O U R
A blinking arrow tells
you when a fax has
been received.