I have read that this Webex Edge Audio creates end to end voip path for Unified CM registered devices (callback and dial-in).
Q1: does this Edge Audio work also for the video endpoints registered to Webex Cloud?
Q2: is Exp.way C and E configuration needed for Cloud based video endpoints registrations?
Since no one has answered,
Q1. Edge Audio is not involved with any WebEx registered devices.
Q2. WebEx Registered devices will use the standard firewall path and not involve the Expressway's.
Hope that helps.