Features: 1) PCI connection general line supports PnP 2) A/C and D/C input impedance reaches 8 megohm 3) Can use on line, broadcasting station, video, and other to record 4) Single card offers eight telephone-recording connections, which can work independently, offers press control, voice and key control record mode 5) Every channel can record, play, accept codes, send out codes, and signal order checks simultaneously 6) Supports incoming telephone number display and fixes telephone message acceptance and sending 7) Supports conference function: up to 32 member conference and multi-group conference