Improves the conference experience for active speaker video stream in VDIv2 in Skype for Business 2015 (Lync 2013)

Assume that user A and user B are in a Microsoft Skype for Business 2015 (Microsoft Lync 2013) conference in a VDIv2 environment, and the active speaker of the conference changes between user A and user B. In this scenario, after you install this update, the following improvements are available:

• When the active speaker changes from user A (video) to user B (video), the video of user A is displayed.
• When the active speaker changes from user A (video) to user B (non-video, audio-only), the photo of user B is displayed.
• When the active speaker changes from user A (non-video, audio-only) to user B (video), the photo of user B is displayed first, and then the video of user B is displayed.

To apply this update, install the October 10, 2017, security update for Skype for Business 2015 (Lync 2013) (KB4011179).

Note Lync 2013 was upgraded to Skype for Business in April 2015.