TCP/IP connection between IPad and IIS in c#
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      I am in a big trouble that is i want to implement a TCP/IP connection between my IIS and Ipad or Android device. For that i open a port in the IIS that always accept a connection from the device. If a connection is established btw client and server then server hold the connection and respond it into the device later. Because my requirement in when i have an updation in the server i want to alert the device. Or If there is any alternative methode available to identify the device. Pls help me If u can
 thanks in advance