Register a handset
When your handset is deregistered from the telephone base, follow the steps below to register it back to the telephone base.
Remove the handset from the telephone base.
Press and hold FIND HS at the telephone base for about four seconds until the IN USE light turns on.
Then press
on the handset. It displays Registering...
The handset show Registered and you hear a beep when the registration process completes. The registration process takes about 60 seconds to complete.