The push notification process involves many Lync Server components. Figure 24.5 provides an overview of the push notification process when an internal Lync user sends an instant message to a user on a mobile device.
The following list outlines the Push notification process:
1. The user (user 1) sends a SIP INVITE to the Front End Server that is destined for the mobile user.
2. The Front End Server performs a routing lookup and identifies a registered endpoint for the user. The Front End Server identifies the endpoint registered as a mobile endpoint and starts communicating with the MCX ...