Built-in128Mbytesmemorydrive,memorycanbeupdatedto256M/512M/1G/2G Autorunfunctionunderwindows2000/XP,Vista32/64bits PreloadedSoftphoneauto-runswithaccountinformation accountinformationandchathistorycanbestoredtobereadableforenduser. Un-plug closeautomaticallywithoutaffectingPCsystemoperation. WithLCD,keypadandringer,easytouselikemobilephone. Phoneringsforallincomingcalls,ringstyleandvolumeselectable. CallerID,echocancellation,fullduplexcommunication. PC-to-PC,PC-to-phone,PhonetoPhoneoperation. Hardware: Noexternalpowerrequired USBpowerLEDindicator Driverandsoundcardbuilt-inInterface: 1USBinterfacetoPCSystemrequirement: Windows2000,XP,Vista 400MHzprocessorandfreeUSB1.1orUSB2.0port 128MBRAMand15MBfreediskspace InternetConnection(33.6Kbpsmodem,oranybroadband:cable,ADSL.)