Feature Codes - AT&T MERLIN LEGEND MLX-10 Non-Display Telephone User Manual

Feature Codes

When you haven't programmed a line button for a feature, use
the feature code to activate the feature. To use a feature code,
press the Feature button and dial the code.
Not all features can be activated by a code. Some features,
like Do Not Disturb, must be programmed onto a line button to
turn the feature on and off. The light next to the button reminds
you that the feature is in use. Feature codes for your MLX-10
phone follow.
Feature Codes
B - 1