AT&T MERLIN LEGEND MLX- 10D Operator's Manual page 68

Using Features
Use the following table to find each feature by page number.
The letter F means you can choose that feature from the
Feature screen. The letter M means you can choose that
feature from the Menu screen. The check mark
whether you must have a programmed line button for that
feature.
For information on additional features you can use, see the
MLX-10D,™ MLX-28D,™ and MLX-20L™ Digital/ISDN Display
Telephones User's Guide. Feature and programming codes
are in appendices at the back of this book.
the
tells you
Using Features 4-5