Capability Characteristic: 1: USB connection general line supports PnP, DSP construction absolutely. 2: adopt megger combine mode, realize megger digital record not plunk. 3:Alternating and direct Current input impedance reach 2 megohm,can use on line, broadcasting station, video, and other to record. 4: single box offer two telephone record connection which can work independent, offer press control, voice and key control record mode. 5: every channel record, play, accepts code; send out code, signal order check can work simultaneous. 6: support incoming telephone number displaying and fix telephone message accepting and sending message. 7: support conference function; realize 32 side conference and multi-group conference. 8: have independent play port, don't use record channels. 9: support 2 boxes on one computer. Application Area: 1: public safe record. 2: digital record system. 3: bank, insurance and security department, government and military organization. Development Condition: 1: offer WIN98/2000 and UNIX drivers. 2: offer DLL and ActiveX control. 3: support VC++, VB, DELPHI, PB, C++Bullder. 4: offer the origin programmer of model 5: voice edit tools. Contact person:Jancy skype:jancy20061