i am doing a project to interface GSM with arduino uno board.My project is about the communiction between GSM and server. GSM in the client side can communicate with server on demand but how the server can communicate to a gsm/gprs module on demand (since the gsm/gprs module doesn't have a static but only dynamic ip).
Client can poll the server every-time but its not the method what we are looking for but - the Server should call GSM/GPRS modules on demand basis, please help me to find a way to do that one.