Yealink SIP-T20 User Manual page 35

To unlock the keypad, you must know the keypad unlock PIN of the phone. The default
keypad unlock PIN is ―123‖.
To change the keypad unlock PIN via phone user interface:
1. Press
2. Select Se ttings->Basic->Phone Unlock.
3. Enter the old PIN in the Current PIN field.
4. Enter the new PIN in the Ne w P IN field.
5. Enter the new PIN again in the Confirm PIN field.
6. Press
Not e
The unlock PIN
To unlock the keypad via phone user interface:
1. Press any locked key.
2. Enter the PIN in the P IN field.
3. Press
The icon disappears from the LCD screen.
You can long press
keypad again.
Not e
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 Re se t Phone PIN
screen.
To deactivate the keypad lock via phone user interface:
1. Press
2. Select Se ttings->Advanced (password: admin) ->Ke ypad L ock.
3. Press
4. Press
.
1. Current PIN:
to accept the change.
length
must be within 15 digits.
to unlock the keypad.
or wait for a period of time (if configured) to lock the
.
or to select Disable from the Keypad L ock field.
1. Keypad Lock:
◄ Disable ►
to accept the change.
123
Customizing Your Phone
23