SIM900a GSM Modem

"Featuring an industry-standard interface, the SIM900A delivers GSM/GPRS 900/1800MHz performance for voice, SMS, Data, and Fax in a small form factor and with low power consumption. With a tiny configuration, SIM900A can fit almost all the space requirements in your applications, especially for slim and compact demand of design. General features •Dual-Band 900/ 1800 MHz •GPRS multi-slot class 10/8 •GPRS mobile station class B •Compliant to GSM phase 2/2+ – Class 4 (2 W @900 MHz) – Class 1 (1 W @ 1800MHz) •SAIC (Single Antenna Interference Cancellation) support •Control via AT commands (GSM 07.07 ,07.05 and SIMCOM enhanced AT Commands) •SIM application toolkit •internal Supply voltage range : 3.2 ... 4.8V •External Supply voltage range : 9 ... 12V DC •Low power consumption: 1.0mA(sleep mode&BS-PA- MFRMS=9 ) •Operation temperature: -40°C to +85 °C "