Apple Express Fax/Modem - Manual (Page 53)

Using a telephone credit card
The Telephone Credit Card option allows you to use a credit card or calling
card to send a fax.
Note: Until the dial card number is changed or deselected, all sent or
forwarded faxes use this number. Be careful to remove the number for calls
not dialed by credit card.
1 Type the credit card access code in the Fax Sender Dial Prefix box.
2 Click Options in the Fax Sender dialog box.
The Options dialog box appears.
41 G E T T I N G T H E M O S T O U T O F Y O U R E X P R E S S F A X