AT+CSTT="cmnet"
AT+CIICR
AT+CIFSR
AT+CSCS="GSM"
AT+CIPSTART="TCP","www.baidu.com",80 
AT+CIPSEND=5
HELLO
AT+CIPSEND


AT+CGPSPWR=1
AT+CGPSRST=1
AT+CGPSINF=32


AT+CBC


AT+CGATT?
AT+SAPBR=3,1,"CONTYPE","GPRS" 
AT+SAPBR=3,1,"APN","CMNET"
AT+SAPBR=1,1  
AT+HTTPINIT
AT+HTTPPARA="URL","www.baidu.com/img/baidu_logo.gif"
AT+HTTPACTION=0
AT+HTTPREAD
AT+HTTPTERM