Self.AlertLevelChanged event

Lync 2013

Raised when the local user has changed their do-not-disturb level joined a meeting as a presenter and shared a resource such as a primary monitor.

Namespace:  Microsoft.Lync.Model
Assembly:  Microsoft.Lync.Model (in Microsoft.Lync.Model.dll)

public event EventHandler<AlertLevelChangedEventArgs> AlertLevelChanged

Use this event to determine if your application should show a new conversation invitation to the signed in user when a conversation invitation is received. Conversation invitations should not be displayed when the signed in user is either in do-not-disturb mode or sharing a resource such as a display in a meeting, A meeting presenter's privacy may be violated if conversation invitations are shown on a shared display in a meeting.