... VC++, VB,DELPHI,C++ Bullder such as development platform. GX300R Digital Trunk Logging Card Features and Benefits : PCI interface bus, ... two-way real-time precise recording of 30-channel on EI digital trunk line,30-channel call tone collection, extraction of caller and ... driven in order to multi-channel programming Equipped with high-multiplexer circuit, the on-board EI digital port can directly link ...