... AT+GSV SIM900 GSM GPRS module, Quad-band, industrial standard Sim900,SIM900 Simcom wireless module,Simcom modules,modulesGeneral features * Quad-Band 850/ 900/ 1800/ 1900 ... °C Specifications for Fax* Group 3, class 1 Specifications for Data * GPRS class 10: max. 85.6 kbps (downlink)* PBCCH support ... )* Serial interface * Antenna pad* I2C* GPIO* PWM* ADC GSM/GPRS module SIM340 Wireless modules