See the following Microsoft article for Skype for Business Command Line Parameters

Please Note

Quicklaunch provides extended functionality to the Skype for Business application leveraging the Lync 2013 API and these are not configurable via command line argument.

Quicklaunch Ultimate: Meet Now, DialPad, Whiteboard and Share Desktop are available in Quicklaunch Ultimate Edition

Quicklaunch Ultimate/Professional: Start with Video, Start with Audio