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> 西门子MC35i模块在GPRS通信时的短信到达通知
猫猫草
post 2008-10-07 10:15:27, Tue
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猫猫猫
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设置AT+CNMI=3,1，然后如果上网的时候有短信到来，会在一个完整的PPP数据帧之后发送一个字节的0x00，注意是在完整的ppp数据帧之后发送的，也就是不在两个0x7E直接的0x00，这就表示有短信到来，可以切换到命令模式进行读取
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