... PDU/TXT) Audio features (EE_H_AMR, HEE_F_AMR, HEE_EFR, HEE_FR, HEE_HR);Output power: -Class 4(2W) for EGSM900 3.8V -Class 1 ... Locking/ Authentication Cards(Domestic/Overseas)FeaturesGSMDCSStandard900 MHz.E-GSM compliant.Output power: class 4 (2W). Fully compliant with ETSIGSM ... 2400, 4800, 9600, 19200, 38400,57600. 2 General Purpose Input/Output gates (GPIOs) available.3 V SIM interface.AT command set ...