Zte ZT303 User Manual page 126

4.8.6.2
Phone Lock
Phone lock can be protected your mobile phone to
be used by others.
Access the submenu" Phone Lock", you can make
setup as follows:
Select "Turn on" >> Enter the correct phone lock
password, you can input the right code next time,
then activate your mobile phone.
Select "Turn Off" to switch off your Phone Lock..
NOTE: the default number is "0000", please change it
to your customized one.
4.8.6.3
Auto Keypad Lock
To prevent the keys from being accidentally pressed,
select Menu, and press * within 5/30/60 seconds or 5
minutes to lock the keypad. In standby mode, the keypad
will be locked if there is no operation in relevant time. Or
you can use Touch Pen to lock the keypad if you press
the signal for 3 seconds.
4.8.6.4
Fixed Dial
If your SIM card support, you can dial the selected
numbers. When activate this function, you can only dial
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