Before registering a handset, the base station will need to be placed in Registration mode.
Long press the register button on the base station until the handset LED flashes.
The base station will now be in Registration mode.
Note: If the base station does pair with the new phone within 90 seconds, the registration mode
will switch off automatically.
Note: You can also press OK > Register Handset and then select the desired base to register the
handset. You need to enter the base PIN (default: 0000) after a base is found.