Specification :

GSM, CDMA, and 3G module.
Various modules for civil and industrial use.

Functions of the GSM module
Working frequency bands (dual band): EGSM900 and GSM1800MHz
Maximum transmit power:
EGSM900 class 4 (2W)
GSM1800 class 1 (1W)
Receive sensitivity: < –106dBm
Normal working temperature: –20 to +70
Working temperature limit: –25 to –20 and +70 to +75
Storage temperature: –40 to +90
Power voltage: 3.4 to 4.7V (3.8V is recommended)
Power consumption (current):
Power-off current: 40¼A
Average standby current: < 4mA
Calling mode current (maximum): 240mA
GPRS class 10 (maximum): 400mA
Protocol: GSM/GPRS phase2/2+