I\'m using powershell to get the Status/Availability of certain users by using the following code:
Import-Module \"C:\\...\\Microsoft.Lync.Model.dll\"
$Clie
Looks like you have to subscribe to user presence information. Lync SDK MSDN documentation has outlined the solution at https://msdn.microsoft.com/en-us/library/office/jj937284.aspx.
Similar solution at https://social.msdn.microsoft.com/Forums/en-US/12357db7-769f-4808-bc99-9b2fb2ed8ce2/presence-unknown?forum=communicatorsdk