... support FSK and DTMF single 3,calling recorder system free 4,support windows 2000,XP,vista Digital USB Recorder ... , import & export data, manage conveniently. a. User Loginb. Software Interfacec.Group Customersd.Edit Customers Informatione.Export/Import Customers Informationf ... adopt ACCESS database. Install simply, use conveniently. Accessories: 1 software disc, 1 mini logger, 1 USB cable, 2 telephone ...