Useful Information46 For assistance, please visit http://www.panasonic.com/helpBattery rechargeMaking/answering calls, intercomWhile programming, thehandset starts to ring.L A call is being received. Answer the call andstart again after hanging up.I cannot register a handset to abase unit.L The maximum number of handsets (6) isalready registered to the base unit. Cancelunused handset registrations from the baseunit (page 28).L Place the handset and the base unit awayfrom other electrical appliances.Problem Cause/solutionThe handset beeps and/or7 flashes.L Battery charge is low. Fully charge thebatteries (page 14).I fully charged the batteries, but7 still flashes or 8 isdisplayed.L Clean the charge contacts and charge again(page 14).L It is time to replace the batteries (page 13).I fully charged the batteries, butthe operating time seems to beshorter.L Clean the battery ends (S, T) and thecharge contacts with a dry cloth, and chargeagain.Problem Cause/solutionNoise is heard, sound cuts inand out.L You are using the handset or base unit in anarea with high electrical interference. Placethe base unit and use the handset away fromsources of interference.L Move closer to the base unit.L If you use a DSL/ADSL service, werecommend connecting a DSL/ADSL filterbetween the base unit and the telephone linejack. Contact your DSL/ADSL provider fordetails.The handset does not ring. L The ringer volume is turned off. Adjust theringer volume (page 24).L Night mode is turned on. Turn it off (page 27).The base unit does not ring.*1 L The ringer volume is turned off. Adjust theringer volume (page 18).I cannot make a call. L The dialing mode may be set incorrectly.Change the setting (page 16).L The handset is too far from the base unit.Move closer and try again.Problem Cause/solution