Useful InformationTroubleshootingIf you still have difficulties after following the instructions in this section, disconnect the base unit'sAC adaptor, then reconnect the base unit's AC adaptor. Remove the batteries from the handset,and then insert the batteries into the handset againGeneral useProblemThe handset does not turn oneven after installing chargedbatteries.The unit does not work.I cannot hear a dial toneI cannot use the Smart functionkey even if the indicator isflashing slowly.The base unit beeps.Menu listProblemThe display is in a language Icannot read.I cannot register a handset to abase unit.Cause/solutionPlace the handset on the base unit or charger to turn onthe handset.Make sure the batteries are installed correctly (page 10).Fully charge the batteries (page 11).Check the connections (page 10)Unplug the base unit's AC adaptor to reset the unit.Reconnect the adaptor and try again.The handset has not been registered to the base unit.Register the handset (page 35).The base unit's AC adaptor or telephone line cord is notconnected. Check the connections.Disconnect the base unit from the telephone line andconnect the line to a known working telephone. If theworking telephone operates properly, contact our servicepersonnel to have the unit repaired. If the workingtelephone does not operate properly, contact your serviceprovider/telephone company.Another unit is in use. Wait and try again later.New messages have been recorded. Listen to the newmessages (page 40)Cause/solution• Change the display language (page 14).• The maximum number of handsets (6) is alreadyregistered to the base unit. Cancel unused handsetregistrations from the base unit (page 35)For assistance, please visit http://www.panasonic.com/help 51