21Useful InformationHelpline Tel. No.: U.K. 08700 100 076 R.O.I. 01289 8333Cause & Solution• You are using the handset or base unit in anarea with high electrical interference. Placethe handset and base unit away frominterference sources, such as antennas andmobile phones.• The redialled number was more than 20digits long. Redial the number manually.• Make sure the charge contacts are not dirtyand the AC adaptor is connected properly,then try again.• Clean the charge contacts and charge again(page 7,8).• It is time to replace the batteries (page 6).• Wipe the battery ends (+, –) and the unitcontacts with a dry cloth.• You must subscribe to Caller ID service.• Your unit is connected to a telephone line withDSL service. We recommend connecting afilter (contact your DSL service provider) to thetelephone line between the base unit and thetelephone line jack.• When you answer the calls, the callerinformation will not be left in the call log.• Reset has failed. Please try again (page 11).• If you reset to default, the numbers in thephonebook and redial list are cleared.• If you have changed PIN but forgot it, pleasecontact your nearest Panasonic ServiceCentre for help.• Caller information has been received (page 15).ProblemNoise is heard during a call.Pressing [ ] does not display/dial the last number dialled.I tried to charge the batteries, butthey do not charge at all.I charged the batteries for 10hours, but still flashes.I charged the batteries for 10hours, but the operating timeseems to be short.Caller information is not displayed.I reset the handset but a long beepis heard and the display returns totelephone setting mode.I found the numbers stored in thephonebook and in the redial listare cleared.I cannot enter the PIN.-CALL- is displayed.