Features and Benefits:

With USB interface, adopts USB1.1 protocol specification

Provides easy installation, supports hot-swap, PNP(plug and play)and automatic recognition

Parallel connection and high-impedance recording mode, rules out interruption of data transmission on monitored channel at any time

DTMF and CID detection, automatically identifies two mode respectively for FSK and DTMF

Pure hardware-decode design, good immunity, high stability

Accurately judges the channel status(pickup/Hangup , Ring times, open-circuit or short-circuit)

Drivers is based on event-driven, provides DLL dynamic link library and ActiveX control

Related models:

            GX02U-1C 1-channel call box

            GX02U-2C 2-channel call box

Development Environment:

WIN98/2000/XP2003/VISTA operating system

DLL dynamic link library and ActiveX control

Supports VC++,VB,DELPHI,PB,C ++Builder,. NET,WEB

Provides a Programming example as the source procedure

1-line/2-line call-in box