... tablet will become a big mobile phone, with which you can surf the internet/Make phone call/Send or receive SMS everywhere ... , Plug & auto-installation , no need disc 5, Support voice phone call, SMS, Phone book, PIN1 & USSD on your tablet or laptop6, Support ... /GPRS 900 Class 1 (+30dBm ±2dB) for GSM/GPRS 1800 Class 1 (+30dBm ±2dB) for GSM/GPRS 1900Operate System Supported • Win2000, WinXP, Win7 32bit ...