... VB, DELPHI, PB, C++ Builder,. NET, WEB GXUSB-8-line telephone voice boxFeatures and Benefits: With USB interface, easy to install ... control Related models: GX02U-1T 1-channel telephone voice box GX02U-1RT 1-channel telephone voice box(recording, response and message) ... , audio editing and tone analyzing tool Application areas: IVR CALL CENTER VOICE MAIL VOICE BROADCAST GXUSB-8-line telephone voice box