AT%IPOPEN总是返回ERROR: 8怎么办?
AT%TSIM%TSIM 1 //SIM卡在位
OK
AT+COPS?
+COPS: 0,0,"CHINAMOBILE"
OK
AT+CSQ
+CSQ: 27,99 //信号正常
AT%IOMODE=1,1,0
OK
AT+CGDCONT=1,"IP","CMNET"
OK
AT+CGREG?
+CGREG: 0,5
OK
AT%ETCPIP="",""
OK
AT%ETCPIP?
%ETCPIP:1,"10.119.99.236",,"211.138.151.161","211.136.18.171"
OK
AT%IPOPEN="TCP","202.206.1.26",23 //这里设置过很不同的IP和端口号,都产生ERROR:8
ERROR: 8
AT%IPOPEN="TCP","202.206.1.26",24
ERROR: 8
AT%IPOPEN="TCP","202.101.98.54",24
ERROR: 8
为什么到这里总是错误,ERROR:8是连接超时,试过好多个IP和端口都不行,怎么办?会不会是硬件问题?IP和端口号问题?
补充:我的卡是动感地带,GPRS不区分CMNET和SMWAP,都支持 我用的是GTM900C
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