... monitor, play all calls 3,FSK,DTMF USB Voice Logger (GXUSB-2R)Features:1, USB interface, provides easy installation and supports hot-swap ... during call.10,Supports automatic recovery after hot-swap and USB port error. 11, Drivers is based on event-driven, ... end during talking Related models: GXUSB-2R 2-channel Voice Logger GXUSB-2R+ 2-channel Recording/dialing/playing prompt BoxDevelopment Environment ...