31Useful InformationTroubleshootingProblem Cause/solutionThe unit does not work. ≥ Check the connections (page 9).≥ Remove the batteries and reinstall them to resetthe unit.The unit does not ring. ≥ The RINGER selector is set to OFF. Set to HIGHor LOW (page 13).The display is blank. ≥ Install new batteries (page 8).LCD display response is slow. ≥ Change LCD contrast setting to higher level(page 21).≥ Batteries are running low.Install or replace the batteries.You cannot dial. ≥ Check the dial tone. If there is no dial tone,check the connections (page 9).≥ Dial lock is turned on. To turn it off, see page 15.≥ The dialled number is restricted. To cancel, seepage 23.The other party suddenlycannot hear your voice duringa conversation.≥ {T} may have been pressed during theconversation.To cancel, press {T} again (page 14).You cannot program itemssuch as the dialling mode.≥ Programming is not possible when:s the handset is off the cradle.s viewing caller information.s “ ” is displayed.s “W” is displayed.≥ Do not pause for over 60 seconds whileprogramming.Caller information is notdisplayed.≥ You need to subscribe to Caller ID service.Consult your service provider/telephonecompany for details.≥ Install or replace the batteries.≥ If your unit is connected to any additionaltelephone equipment such as a Caller ID box orcordless telephone line jack, plug the unitdirectly into the wall jack.≥ If you use a DSL /ADSL service, we recommendconnecting a DSL /ADSL filter between the unitand the telephone line jack. Contact your DSL /ADSL provider for details.≥ Other telephone equipment may be interferingwith your phone. Disconnect it and try again.Number of missed calls doesnot display during standbymode.≥ You have entered the caller list before and thereis no new missed call coming in after that.If there are unviewed missed calls, number ofmissed calls will be displayed when you enterthe caller list.KX-TS880EX.book Page 31 Tuesday, November 23, 2010 3:41 PM