Problem
When a user has received a call and hangs up the presence of Skype for Business reverts to 'Available'.
Solution
This can be caused by the Plantronics software hub. The plantronics hub has a feature called 'aware of microsoft' which resets the status to 'Available after a call.
Information links
- https://social.technet.microsoft.com/Forums/lync/en-US/59811fc6-68fd-4ea8-9f16-2676195bed45/skype-for-business-status-is-reset-to-available-after-i-have-explicitly-set-it-to-busy?forum=sfbfr
- https://www.plantronics.com/nl/nl/support/knowledge-base/kb-article-page.html?type=Product_Information__kav&lang=en_US&urlName=SF23461&t=All&k=Voyager%208200%20UC