Useful Information47Error messagesIf the unit detects a problem, one of the following messages is shown on the display.*1 KX-TG6421Display message Cause/solutionCheck Phone Line L The supplied telephone line cord has not beenconnected yet or not connected properly. Check theconnections (page 11).Error*1 L Recording was too short. Try again.Failed L Phonebook copy failed (page 21). Confirm the otherhandset (the receiver) is in standby mode and tryagain.Incomplete L The receiver’s phonebook memory is full. Erase theunnecessary phonebook entries from the otherhandset (the receiver) and try again.Invalid Number L You tried to send an SMS message to a phonenumber saved in the phonebook, caller list, or rediallist that is over 20 digits long.Memory Full L The phonebook memory is full. Erase unnecessaryentries (page 20).L Message memory is full. Erase unnecessarymessages (page 37).*1L The call barred list memory is full. Erase unnecessaryentries (page 27).*1No link.Reconnect ACadaptor.L The handset has lost communication with the baseunit. Move closer to the base unit and try again.L Unplug the base unit’s AC adaptor to reset the unit.Reconnect the adaptor and try again.L The handset’s registration may have been cancelled.Re-register the handset (page 27).Use rechargeablebattery.L A wrong type of battery such as Alkaline orManganese was inserted. Use only the rechargeableNi-MH battery noted on page 4, 8.You must firstsubscribe toCaller ID.L You must subscribe to a Caller ID service. Once youreceive caller information after subscribing to a CallerID service, this message will not be displayed.TG6411-6421FX(e).book Page 47 Friday, February 27, 2009 11:44 AM