Implemented WebEx with ADFS 3.0 (Windows 2012R2), and found these articles helpful:
https://cisco-support.webex.com/guest/articles/en_US/Usability_FAQs/WBX63102/myr=false
https://digitalglue.wordpress.com/2014/02/11/configuring-cisco-webex-meeting-server-to-work-with-adfs-2-0/
But those guides do not go over configuring the sign-out process. By default, when a user