I have a SIM900 GSM/GPRS device, I can send AT commands through HyperTerminal and everything is fine. I can configure GPRS connection through AT commands:
AT+CGATT=1
AT+CIPMUX=0
AT+CSTT="INTERNET","",""
AT+CIICR
AT+CIFSR
AT+CIPSTART="TCP","IP","PORT"
With these configuration I can make it connect my PC (using port forwarding on the home router). I created a TCP server in C# and the server accepted the TCP connection from the device. My question is, is it possible to send AT commands through TCP and execute them ? The server sends AT commands to the device and they are received but as data not commands.
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