basics
voicemail
Find it: Press
M
>
e
Messages > Voicemail
recent calls
Find it: Press
M
>
s
Recent Calls
lock your keypad
Press
M
, then
*
(within 2 seconds) to lock or unlock
your keypad (to prevent accidental key presses).
Note: You can still make emergency calls on your phone
when the keys are locked.