Motorola V557 User Manual page 43

To manually lock your phone: Press M > w Settings > Security
> Phone Lock > Lock Now.
To automatically lock your phone whenever you turn it off:
Press M > w Settings > Security > Phone Lock > Automatic Lock > On.
Note: You can make emergency calls on a locked phone (see
page 49). A locked phone still rings or vibrates for incoming
calls or messages, but you need to unlock it to answer.
basics 41