Yealink SIP-T23P User Manual page 35

To change the phone unlock PIN via phone user interface:
1. Press Menu->Settings->Basic Settings (default password: admin) ->Phone Unlock
PIN.
2. Enter the old PIN in the Current PIN field.
3. Enter the new PIN in the New PIN field.
4. Re-enter the new password in the Confirm PIN field.
5. Press the Save soft key to accept the change or the Back soft key to cancel.
Note
The unlock PIN length must be within 15 digits.
To unlock the keypad via phone user interface:
1. Press any locked key, the LCD screen prompts "Please Enter PIN".
2. Enter the PIN in the Pin field.
3. Press the OK soft key to unlock the keypad.
The icon disappears from the LCD screen.
You can long press
keypad again.
Note
You can also unlock the keypad by administrator password. When you enter the
administrator password to unlock the keypad, the phone will turn to the Reset Phone PIN
screen.
To deactivate the keypad lock via phone user interface:
1. Press Menu->Settings->Advanced Settings (default password: admin) ->Keypad
Lock.
or wait for a period of time (if configured) to lock the
Customizing Your Phone
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