title: Can we push notification without using APNs?
body: <p>Is it possible to push notification from my 3rd party server directly to my device in Intranet(Wi-Fi)? I have achieved to push notification to the device with the help of APNs, but my requirement to achieve the same without using any external service, say my server and my device is connected to an Intranet, i need to detect the availability of the device in the Intranet and send notification directly. Any idea?? Thanks in advance</p>