Display message Cause/solutionInvalid R There is no handset registered to the base unitmatching the handset number you entered.R The handset is not registered to the base unit.Register the handset (page 51).Requiressubscriptionto Caller ID.R You must subscribe to a Caller ID service. Once youreceive caller information after subscribing to a CallerID service, this message will not be displayed.Userechargeablebattery.R A wrong type of battery such as alkaline ormanganese was inserted. Use only the rechargeableNi-MH batteries noted on page 3, 7.TroubleshootingIf 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 them into the handset again.General useProblem Cause/solutionThe handset does not turn oneven after installing chargedbatteries.R Place the handset on the base unit or charger to turn onthe handset.The unit does not work. R Make sure the batteries are installed correctly (page 10).R Fully charge the batteries (page 11).R Check the connections (page 10).R Unplug the base unit’s AC adaptor to reset the unit.Reconnect the adaptor and try again.R The handset has not been registered to the base unit.Register the handset (page 51).I cannot pair a mobile phone tothe base unit.R Depending on the compatibility of the mobile phone, youmay not be able to pair it to the base unit. Confirm thatyour mobile phone supports the hands-free profile (HFP)specification.R Confirm that the Bluetooth feature of your mobile phone isturned on. You may need to turn this feature ondepending on your mobile phone.R The Bluetooth technology on your mobile phone may notbe functioning normally. Turn off and on your mobilephone.R If your mobile phone is already connected to anotherBluetooth device such as a Bluetooth headset, turn it offor disconnect it from your mobile phone.R Some mobile phones may require you to enter theBluetooth PIN to pairing. Confirm that you entered thecorrect PIN.71Useful InformationTGF372AZ(en)_0519_ver003.pdf 71 2015/05/19 9:28:47