Meetings: everyone can speak with camera and audio
Conference: Guests cannot speak or use their camera, only chat. Maybe the best way to do this is create a customized installation.
Guests always have to put a nickname the first time they enter the system
Registered users are the only ones who can create rooms. You cannot enter a room if a registered user has not entered first
Dialing in: telephone in to join a conference or rally
Create a web based administration panel for users, username and password. Each user can choose the logo that appears in the chat