Users in the appropriate group in Simulakrum directory can use Rocket.Chat now. Rocket.Chat works from within a browser, and allows for very fast and quality multi-user video-conferences, desktop display, and many other useful functions. It is using a jitsi-based server in the background.
Rocket.Chat is the second multi-user video-conferencing tool available for Simulakrum – HipChat, the Atlassian’s proprietary commercial solution that integrates well Jira and Confluence, is also currently available at Simulakrum’s. Ask for the access to those tools if you don’t have the access already.