68If the Following Appear on Your Display...The following will be displayed when the unit needs your attention.Display message Cause & RemedyRecharge battery • The battery needs to be charged. Recharge thebattery (p. 10).Charge for 6h • The battery has been discharged. The handset willnot work. Fully charge the battery (p. 10).No link to base.Move closer tobase, try again.• The handset has lost communication with the baseunit. Walk closer to the base unit and try again or re-register the handset (p. 51).• Confirm the base unit’s AC adaptor is plugged in.• Raise the base unit antenna.Please lift upand try again.• A handset button was pressed while the handsetwas on the base unit. Lift the handset and press thebutton again.Busy • The base unit is in use. Try again later.Error!! • When you tried to re-register the handset, thehandset and base unit could not link for somereason, such as interference from electricalappliances. Move the handset and base unit awayfrom any electrical appliances and try again.Phone book full • When you tried to store an item in the phone book,the phone book memory was full. Press [OFF] to exitthe programming mode. To erase other items fromthe phone book, see page 42.System is busy.Please try againlater.• The handset has lost communication with the baseunit. Walk closer to the base unit and try again.• The Answering System is in use, such answering acall or playing back messages. Try again later.Line in use • The base unit is conducting an outside call or aparallel connected telephone is in use.Line on hold • The base unit is on hold for an outside call.