These are the settings associated with the Commercial Mobile Alert System.
Presidential alert: This setting allows presidential alerts to be always presented. This setting is greyed-out because it cannot be changed.
Extreme alert: Checkmark this setting so that Extreme alerts are always presented.
Severe alert: Checkmark this setting so that Severe alerts are always presented.
AMBER alert: Checkmark this setting so that AMBER alerts are always presented.
Alert reminder: Opens a dialog box to select how often you want to be reminded when notified of an alert.