ClearSounds A500 DECT 6.0 User Manual page 111

3. Press
press .
Old PIN: appears on the screen.
4. Press numeric keys to enter the present PIN, and then
press .
Note: The factory default PIN is 0000.
New PIN: appears on the screen.
5. Press numeric keys to enter the new PIN, and then
press .
Again: appears on the screen.
6. Press numeric keys to re-enter the new PIN, and then
press .
appears on the screen.
7. Press .
110
and scroll to System PIN, and then
PIN Changed