分享：SIM300与G20互传数据
硬件：MOTOROLA G20, SIMCOM SIM300, PC机（串口调试，超级终端），AT指令
只写精髓了啊：
SIM300 AT:
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at+cipcsgp=1,"cmnet"
OK
at+clport?
TCP: 2020
UDP: 3030

OK
at+clport="tcp","1234"
OK
at+clport?
TCP: 1234
UDP: 3030

OK
at+cipserver
OK

SERVER OK
at+cifsr
10.31.17.129

REMOTE IP: 10.31.0.56DDDDEFGH
at+cifsr
10.31.17.129
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G20 AT:
/////////////////////////////////////////////////
at+mipcall=1,"cmnet"                    
OK  

+MIPCALL: 10.31.0.56                    
at+mipcall?           
+MIPCALL: 1,10.31.0.56                      

OK  
at+mipopen=1,1111,"10.31.17.129",1234,0                                       
OK  

+MIPOPEN: 1,1             
at+mipopen?           
+MIPOPEN: 2,3,4               

OK  
at+mipsets=1,340                
+MIPSETS: 0           

OK  
at+mipsets?           
+MIPSETS: 1,340               

OK  
at+mipsend=1,"4444"
+MIPSEND: 1,1370

OK
at+mippush=1
+MIPPUSH: 0

OK
at+mipsend=1,"444445464748"
+MIPSEND: 1,1366

OK
at+mippush=1
+MIPPUSH: 0

OK
at+mipcall?
+MIPCALL: 1,10.31.0.56

OK
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不用注释吧，有需要解释的朋友，请提问，我尽力回答。