Before Operating the Telephones2-4 OperationIcon DescriptionsThe following icons show you the feature availability, notes and action to operate the features.While operating the unit, you can easily refer to the Icons noted on the inside back cover of this manual.OR18889toOR(CO)Seize an external line (One of thefollowing).• Press the CO button.• Dial automatic line access number 9.• Dial outside line number 81 to 88.Press the Call button on the Doorphone.Press the Recall button on a single linetelephone.Wait for an answer.Talk.You will hear a conf rmation, dial or ringtone.C. Tone: conf rmation toneD. Tone: dial toneR. Tone: ring toneThis feature cannot be operated with asingle line telephone.Enter the account code.account codeextension no. Dial an extension number.Related Programming TitleSee “Programming”, if necessary.Off-hook (One of the following).• Lift the handset.• Press the SP-PHONE button.• Press the MONITOR button. (To starttalking, lift the handset.)On-hook (One of the following).• Hang up.• Press the SP-PHONE button.• Press the MONITOR button.Press the corresponding function buttonon the proprietary telephone. (See to“When You Use a Panasonic ProprietaryTelephone”.)desired no. Enter the required number.phone no. Dial the telephone number.(Recall)