TIPTEL 282 Manual page 21

Enterprise IP Phone
following specific keys:
The Menu hot keys can not be used until unlocked. You can not access
Menu Key:
the menu of the phone.
Function Keys: The hard function keys (MESSAGE, FORWARD, RD, OK, X, navigation
Keys, Volume adjustment button and line keys) can not be used until
unlocked. You can not access the hot keys such as Conf, Hold, Mute,
Tran, History, Dir, DND, etc either.
All of the keys can not be used until unlocked. You can only use the
All Keys:
phone to answer the incoming calls.
You can only use the phone to answer the incoming calls（But can not
Lock&Answer:
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
Confirm hot key.
2) Choose Keypad Lock option.
3) Use the navigation key to highlight the one you want to lock.
4) Press Save hot key to active the change, or Back hot key to return to the previous
screen.
5) The icon will be displayed on the top right corner of the idle screen.
6) If you choose Lock&Answer, it will show the icon
To unlock the phone via Phone interface:
1) Press Menu hot key, you are prompted for the password.
2) Enter the password, and 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:
Choose Phone->Preference to do the relating changes. Please refer to the instruction
above for the parameters' detail.
Note:
1. The default password for unlock is admin.
2. Users can make emergency calls when the phone is locked.
Customizing Your Phone
and
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on the user interface.