Hi,
I noticed that this question was asked in the past and answer was negative, but I wonder if it possible to implement this feature somehow. There seems to be already some sort of API from MS that lets you put this info to Outlook from Lync that guys that develop Jitsi client use to show status info in Outlook. So from what I understand this just need to be implemented on the Spark side and since both Spark and Jitsi source codes are available so I am wondering where is the catch.
I also found this document that describes whole process https://msdn.microsoft.com/en-us/library/office/jj900715.aspx
Thanks