Need Help in Sending Data from GPRS Module to TCP Server using Micro-Controller??

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Hello!! I successfully transmit data to a TCP server using SIM300 Module using Windows Hyper terminal.
But i have to automate this process.

But not able to write code for it, don't know why i am not able to receive data from GPRS Module properly.

I am using PIC18F8722 Micro-controller and whenever i tries to receive data it Serial Port Over Run Bit OERR gets high.
I am not able to know why this happens.

Can any one share an algorithm to send command to gprs module and based on the received data i can process further.

Please help
 

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