User Manual
Page 89
... except unlock code, security code, and lifetime timer: M > Settings > Initial Setup > Master Reset Reset all options except unlock code, security code, and lifetime timer, and clear all user settings and entries: M > Settings > Initial Setup > Master Clear Dialing Features Feature Auto PIN Dial Description Automatically dial an authenticating PIN code for outgoing calls: M > Settings > Initial Setup > Auto PIN Dial Phone Features...
... except unlock code, security code, and lifetime timer: M > Settings > Initial Setup > Master Reset Reset all options except unlock code, security code, and lifetime timer, and clear all user settings and entries: M > Settings > Initial Setup > Master Clear Dialing Features Feature Auto PIN Dial Description Automatically dial an authenticating PIN code for outgoing calls: M > Settings > Initial Setup > Auto PIN Dial Phone Features...