Useful Information71Error messagesIf the unit detects a problem, one of the following messages is shown on the display.Display message Cause/solutionBusy L The called handset or base unit is in use.L Privacy mode is on for the call you tried to join (page28).L Other units are in use and the system is busy. Try againlater.Dial locked L Dial lock is turned on. To turn it off, see page 28.Error!! L The handset’s registration has failed. Move the handsetand base unit away from all electrical appliances and tryagain.L 8 handsets have already been registered to the baseunit. A previously deregistered handset number maystill be retained in the base unit. To register anadditional handset, erase the unnecessary handsetnumber using the base unit:Press and hold {INTERCOM} until the IN USE indicatorflashes. i Press and hold the handset’s extensionnumber ({1} – {8}) that you want to cancel/delete fromthe base unit until a beep sounds.L The entered password was wrong in programming diallock. Enter the correct password.Failed L The handset you tried to copy phonebook items to is inuse.L The handset you tried to copy phonebook items to is outof area.Incomplete L The destination handset’s phonebook memory is full.Erase unnecessary items from the destinationhandset’s phonebook (page 33).Invalid.Please registerto the base unitL The handset is not registered to the base unit. Registerthe handset (page 65).