PLANET VIP-255PT - Manual (Page 21)

Keypad Lock
You can lock the keypad of your phone when you are temporarily not using it. This function helps you to
protect your phone from unauthorized use. You can lock the following specific keys:
Field Description
Menu Keys
The Menu hot key can not be used until unlocked. You can not access
the menu of the phone.
Function Keys
The hard function keys can not be used until unlocked. You can not
access the function keys, such as History, Addr, DND, Menu,
MESSAGE, MUTE, CONF, TRAN, RD Keys, etc.
All keys
All of the keys can not be used until unlocked. You can only use the
phone to answer the incoming calls.
Lock&Answer
You can only use the phone to answer the incoming calls（But can not
hung up the call by your party. Or enter the menu pages to do some
configurations.
To enable keypad lock via Phone interface:
1. Press Menu->Settings->Advanced Settings, enter the password, and then press Enter hot key
to enter.
2. Use the navigation keys to choose Keypad Lock option.
3. Use the Switch hot key to highlight the one you want to lock.
4. Press Save hot key to active the change, and Back hot key to return to the previous screen.
5. The icon will be disappeared on the top right corner of the idle screen.
6. If you choose Lock&Answer, it will show the icon and on the user interface.
To unlock the phone via Phone interface:
1. Press Menu hot key, you are prompted for the password.
2. Enter the password, then press Confirm hot key, the phone is unlocked.
3. The icon will be disappearing from the idle screen.
4. If you choose Lock&Answer, you have to enter Menu->Settings->Advanced Settings->Keypad
Lock to disable this option.
To enable keypad lock via Web interface:
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Choose Phone->Preference->Keyboard Lock to do the relating changes. Please refer to the