How can I change the call barring password?

1. From the home screen press the Menu button.
2. Move the cursor to Settings and press the OK button.
3. Keep the cursor on Call settings and press the OK button.
4. Move the cursor to Call barring and press the OK button.
5. Move the cursor to Change password and press the Select button.
6. Enter the current password and press the OK button.<
7. Enter the new password and press the OK button.
8. Enter the new password again and press the OK button.