Brother MFC-640CW - Manual (Page 181)

APPENDIX A A - 8
Using a cordless external handset
If your cordless telephone is connected to the EXT. jack on the
machine and you typically carry the cordless handset elsewhere, it is
easier to answer calls during the Ring Delay.
Changing the remote codes
Remote activation lets you send commands to your machine from an
extension or external phone. To use Remote Activation, you must
turn on the remote codes.
Remote Codes might not work with some telephone systems. The
preset Fax Receive Code is
51 . The preset Telephone Answer
Code is #51 .
1
If it is not illuminated in green, press ( Fax ).
2
Press Menu/Set , 2 , 1 , 4 .
3
Press ▲ or ▼ to select On (or Off).
Press Menu/Set .
4
Enter the new Fax Receive Code.
Press Menu/Set .
5
Enter the new Telephone Answer Code.
Press Menu/Set .
6
Press Stop/Exit .
If you are always disconnected when accessing your external
TAD remotely, try changing the Fax Receive Code and
Telephone Answer Code to another three-digit code (such as
### and 999 ).
Setup Receive
4.Remote Code