11Before FAX SettingConnect Telephone CablesConnect the supplied telephone cable to the telephone line jack (A) on the back side of the machine and the wall jack.If you want to connect your own external telephone or telephone with built-in answering machine, connect it toexternal device jack (B) on the back side of machine.If you have the optional handset, connect the cable to the handset jack (C) on the back side of the machine.External telephone and handset are both available to connect together.