Brother MFC 8220 - Manual (Page 24)

1 - 10 INTRODUCTION
Connecting the MFC
Connecting an external telephone
Although your MFC does not have a handset, you can connect a
separate telephone (or telephone answering device) directly to your
MFC as shown in the diagram below.
Whenever this phone (or TAD) is in use, the LCD shows
Telephone .
Extension
Telephone
External
Telephone
(Example
for the U.K.)