Voice Privacy; Security Setting; Set Pin Code - Zte C306 User Manual

7.3.6 Voice Privacy

1.Select Menu→ Settings→ Call Setting→Voice Privacy
2. Select Enhanced or Standard to set voice encryption in
Standard or set voice encryption Enhanced.
3. Press OK Key/Left select key to confirm.

7.4 Security Setting

Introduction to phone's security options preventing others to avoid
illegal use or acquire your phone's personal information. Please input
right phone Password and PIN code to enter.
Note：Consecutive inputting wrong PIN code for several times can
cause locking of UIM Card. To unlock, you need PUK. PIN code and
PUK Code may be offered together with the UIM Card. If not, please
contact with network operator. The default phone password is 0000,
default PIN code is 1234, please change it to your own PIN code and
phone password as soon as possible.

7.4.1 Set PIN Code

1. Select Menu→ Settings→ Security.
2. Input your phone password, press OK key/Left select key.
3. Move to PIN Lock, select On, Off or Change Lock, press OK
key/Left select key to confirm.
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