Windows® Phone 8 Unleashed

Notification Classes

Some kinds of notifications may be more time critical than others. For example, a notification indicating that tomorrow’s weather forecast has changed may be less time critical than a notification about a traffic jam on your planned route home. The MPNS allows notifications to be assigned a batching interval, which works as a guide for the MPNS in determining when to deliver one or more notifications in a batch.

To inform the MPNS of the batching interval of a notification, a header named X-NotificationClass is added to the outgoing request. The batching interval is a string representation of an integer value. The set of valid priority values is determined by the kind of notification, be it a toast, tile, or raw notification. ...