iam looking for an Arduino code that's compatible with arduino mega 2650 and GSM sim 900 to make the GSM act as a tcp server
@mohamedsamir034, your topic has been moved to a more suitable location on the forum. Installation and Troubleshooting is not for problems with (nor for advise on) your project.
Running a mobile device as a server has problems, because most mobile networks a) won’t provide you with a static IP address, and b) do not support NAT back through the network to reach your device.
The usual solution is to have a fixed server on the internet acting as your host - and connecting through that with both your ‘server’ and anyIP clients that need to talk to the mobile device. Effectively a private cloud.
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