How to register the Panasonic KX-TGA 682 Additional Handset for the KX-TG681 & 682 Cordless Phones:
1 On the main base station of your phone (the unit connected to your phone socket), press and hold the paging button for 5 seconds until you hear a beep. The base is now in registration mode, and the following steps must be finished within 60 seconds.
2 On the handset you would like to register (it may show "Base no power" or "No link. Reconnect AC adaptor" on the screen), please press right-hand key just below the screen to bring up the handset MENU.
3 Press the # key, and you will then be prompted to enter a Menu Code. Enter 130 on the keypad and the following screen will be displayed:
4 As the base is already in registration, press 'OK' to confirm.
5 If prompted for the Base PIN, enter 0000 (unless you have changed the PIN) and press 'OK' to complete the registration.