Nokia 2170 Owner's Manual page 19

To quickly activate Keyguard
*8$5' $&7,9(
Another way of activating Keyguard
0HQX
A third way to activate Keyguard
To deactivate Keyguard
0HQX
To answer a call with Keyguard active
ó
ô
ù
.(<0
0HQX