1.Wireless USB modem 2.WCDMA/HSPA 850/1900/2100MHz 3.Support SMS,Call,CSD,Dial-up ... Characters1.Contains LONGSUNG U6300 module,wcdma-hsdpa/hsupa network2.Reliable hspa 3g solution for SMS,CSD,telephone and dial-up3.Built-in ... USB expansion slot4.Using a simple AT command interface5.Always-On- ...