Brother MFC-640CW - Manual (Page 82)

5 - 4 QUICK-DIAL NUMBERS AND DIALING OPTIONS
6
Use the dial pad and the chart on page B-12 to enter a name for
the Group.
Press Menu/Set .
(For example, type NEW CLIENTS).
7
Press Stop/Exit .
You can print a list of all the Speed-Dial numbers. Group
numbers will be marked in the GROUP column.
(See Printing reports on page 8-3.)