... /HTTP( available at late July ,2010)* FOTA ( available at July ,2010)* MMS (available at July ,2010)* Embedded AT (available at Q3,2010) ... Serial interface * Antenna pad* I2C* GPIO* PWM* ADC Compatibility* AT cellular command interface Certificates:* CE * FCC* ROHS* PTCRB* GCF* ... Yu skype: amyyu123123 HP: +8618098954601 E mail: baiyi at bykj181.com baiyi new and original Simcom sim900 gsm/gprs module