Yealink SIP-T46G - Manual (Page 39)

Customizing Your Phone
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To change the keypad unlock PIN via phone user interface:
1. Press Menu->Basic->Phone Unlock PIN.
2. Enter the desired values in the Current PIN, New PIN and Confirm PIN fields
respectively.
3. Press the Save soft key to accept the setting or the Back soft key to cancel.
Note
To unlock the keypad via phone user interface:
1. Press any locked key, the LCD screen prompts “Unlock PIN”.
2. Enter the PIN in the Unlock PIN field.
3. Press the OK soft key to unlock the keypad.
The icon disappears from the LCD screen.
You can long press or wait for a period of time (if configured) to lock the
keypad again.
Note
To deactivate the keypad lock via phone user interface:
1. Press Menu->Advanced (password: admin) ->Phone Settings->Keypad Lock.
The unlock PIN length must be within 15 digits.
You can also unlock the keypad by administrator password.