Problem Cause/solutionI cannot connect a cellularphone to the base unit.R Confirm that your cellular phone is turned on.R Confirm that your cellular phone is within base unit range(page 11).R Depending on the state of the wireless environment, suchas the presence of any electrical interference, there maybe a delay even if the auto connection feature is turnedon. You can connect to the base unit manually (page 16).R The cellular phone has not been paired to the base unit.Pair the cellular phone (page 14).I cannot hear a dial tone. R Make sure that the CELL 1 or CELL 2 indicator lights up(page 12).R The base unit’s AC adaptor or telephone line cord is notconnected. Check the connections.R 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.The base unit beeps. R New messages have been recorded. Listen to the newmessages (page 49).Battery rechargeProblem Cause/solutionThe handset beeps and/orflashes.R Battery charge is low. Fully charge the batteries (page 8).I fully charged the batteries, but– still flashes,– is displayed, or– the operating time seems tobe shorter.R Clean the battery ends ( , ) and the charge contactswith a dry cloth and charge again.R It is time to replace the batteries (page 8).Making/answering calls, intercomProblem Cause/solutionis displayed. R The handset is too far from the base unit. Move closer.R The base unit’s AC adaptor is not properly connected.Reconnect AC adaptor to the base unit.R The handset is not registered to the base unit. Register it(page 66).61Useful InformationTG7841BX_UE(en)_0528_ver011.pdf 61 2013/05/28 18:56:50