Brother MFC-9120CN - Manual (Page 78)

Chapter 7
62
Changing the Remote Codes
7
The preset Fax Receive Code is l51. The
preset Telephone Answer Code is #51. If you
are always disconnected when accessing
your External TAD, try changing the
three-digit remote codes, for example ###
and 999.
a
Make sure you are in Fax mode .
b
Press Menu, 2, 1, 4.
Setup Receive
4.Remote Codes
c
Press a or b to choose On (or Off).
Press OK.
d
If you chose On in step c, enter the new
Fax Receive Code.
Press OK.
e
Enter the new Telephone Answer Code.
Press OK.
f
Press Stop/Exit.