Brother MFC-5440CN - Manual (Page 142)

TROUBLESHOOTING AND ROUTINE MAINTENANCE 11 - 14
Compatibility
If you are having difficulty sending or receiving a fax due to possible
interference on the phone line, we recommend that you adjust the
Equalization for compatibility. The MFC adjusts the modem speed
for fax operations.
1
Press Menu/Set , 2 , 0 , 1 .
2
Press ▲ or ▼ to select Normal ,
Basic (or High ).
Press Menu/Set .
3
Press Stop/Exit .
■
Basic reduces the default modem speed to 9600 bps.
Unless interference is a recurring problem on your phone
line, you may prefer to use it only when needed.
■
Normal sets the modem speed at 14400 bps.
■
High sets the modem speed at 33600 bps. (Default)
Miscellaneous
1.Compatibility