Capacity: 4 lines 16 Extensions, Expandable up to 8 - 48Call Queue waitingManager-Secretary functionCall limitation alarmMulti-answer mode when receiving callExternal Music Resource PortIP Economical RoutingConference Call – Supports up to 8 PartiesCall pick-up and forwarding..
Capacity:Extension port is 16-88 lines,trunk port is 4-10 lines, Max port total capacity is 92 lines(4 Co lines 88 Exts) or 82 lines(10 Co lines and 72 Exts),can be connected with 9PCS expansion boardExtension type: 2 wire common phone,4 wire key phone,network IP (SIP) phone.Trunk Type: 2 wire..