reading data sent through GPRS in C#

[C# Programming]

Hi,

I am working on a project involving communication using GPRS. We have a GPRS enabled modem that sends data to server at regular intervals. All I have to do is develop a service that reads the data sent from GPRS enabled modem and save into database.

I request any one who has experience in these type of projects to guide me in three things.

1.How to establish connection between Modem and Server
2.How to read data received by the server
3.How to close the connection

Thanks in advance