... 10 4.SIM Application Toolkit 5.gsm/gprs module MC52i MC52I General Features1,GSM Dual-Band 900, 1800 MHz2, ... 3GPP Release 983,GPRS multi-slot class 104,Compliant to GSM phase 2/2+5,Output power: - Class 4 ... speech codec support8,Integrated TTY modemSpecial Features1,Serial interface modem driver for Microsoft® Windows 7™, Windows XP™ and ... ,Real time clock with alarm functionality MC52i GSM GPRS module