WiscChat - openchat.wisc.edu conference chat domain
If you would like allow participants who aren't using WiscChat, you can create a room in the 'openchat.wisc.edu' domain. Rooms in all of the other wisc.edu domains only allow WiscChat participants.
Use conference.openchat.wisc.edu where the documentation instructs to use conference.wisc.edu in the WiscChat conference room documentation.
Note: If this domain is subjected to abuse, then room creation may be restricted to administrators.