Thank you for contacting Cassia
FYI, Cassia uses Microsoft Teams for facilitating video conference calls & demos.
New to Teams? Teams meetings are best when you join them from the Microsoft Teams App or Teams on the web, and there's a bunch of ways to do that—read on for details about joining by link, from your calendar, and more.
For support or to learn more about joining a Teams meeting:
https://aka.ms/JoinTeamsMeeting