... -slot class 10 4.SIM Application Toolkit 5.gsm/gprs module MC52i MC52I General Features1,GSM Dual-Band 900, 1800 MHz2 ... mode, cell broadcast5,Fax Group 3, class 1 and class 26,High quality voice support for handset, headset and handsfree operation7 ... interface3,Real time clock with alarm functionality MC52i GSM GPRS module