Brother MFC-8660DN - Manual (Page 68)

Chapter 7
54
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.
21.Setup Receive
4.Remote Codes
a On
b Off
Select ab & OK
c
Press a or b to select On or Off.
Press OK.
d
If you selected On in c, enter the new
Fax Receive Code. Press OK.
e
Enter the new Telephone Answer Code.
Press OK.
f
Press Stop/Exit.