AT&T MERLIN LEGEND Release 3.1 System Programming Manual page 787

General Feature Use and Telephone Programming
Programming Methods
Telephones can be programmed by dialing programming codes or on MLX
display phones by selecting features from the display. An analog multiline
telephone cannot be programmed by selecting features from the display.
To program a telephone, first enter programming mode:
On analog multiline telephones, slide the Test/Program (T/P) switch on the
side of the telephone to P.
On MLX-10 telephones, press the Feature button and dial
On MLX display telephones, use the same procedures as the MLX-10 or
enter programming mode by selecting
screen on the display.
See the appropriate user or operator guide for more information.
NOTE:
Features can also be programmed onto individual telephones through
Centralized Telephone Programming. The steps for using programming codes
vary depending on the telephone. Tables D–2 through D–4 list the basic steps
for programming each telephone type.
.
from the menu
System Programming
D–9