Push notification relies on the MPNS to dispatch notifications to the phone. The process works like this:
1. A phone app requests subscription to the MPNS using a notification channel.
2. The MPNS returns a URI, where notifications can be sent.
3. The phone app forwards the URI to any third-party service (such as a web service created by you) that wants to send the phone app notifications (see Figure 15.1).
The Push Notification URI is the address of the MPNS plus an identifier for phone device. Having received the push ...