Brother MFC 8220 - Manual (Page 122)

REMOTE FAX OPTIONS 8 - 7
97 Check the receiving status
1 Fax You can check whether your MFC has
received any faxes. If it has, you will hear one
long beep. If not, you will hear three short
beeps.
98 Change the Receive Mode
1 External TAD If you hear one long beep, you can change
the Receive Mode.
2 Fax/Tel
3 Fax Only
90 Exit After a long beep, you can exit Remote
Retrieval.
Remote commands Operation details