3 CO lines with 8 extensionsExtendable to 6/16Stations intercom / paging / all pagingCall hold & transfer99 speed dialsDo not disturbToll restrictionLast number redialConference callRinger setting with day/night modePulse dial mode assignmentCall hold time settingProgrammable flash timingAssign station for fax machineAssign station for operatorWith other accessories available