Gets a Boolean value that indicates whether effective presence information is enabled on the site.
Assembly: Microsoft.SharePoint (in Microsoft.SharePoint.dll)
Available in Sandboxed Solutions: Yes
Available in SharePoint Online
The EffectivePresenceEnabled property returns the raw presence value combined with the global virtual server setting for presence, while the PresenceEnabled property gets or sets the raw presence value of the site. Use the EffectivePresenceEnabled property to display presence at run time, and use the PresenceEnabled property when creating administrative tools.