Panasonic Toughbook CF-29LCQGCBM Reference Manual page 9

Key Combinations
3
Select [OK].
NOTE
Each user can select separate settings for whether or not to use the Hotkey settings.
*1
If MUTE is set, you will not hear a beep.
Fx
*2
" " indicates any function key from
F1 F10
to .
9