admin/setting/modsettingbigbluebuttonbn
What is the BigBlueButton activity?
From Moodle 5.3, BigBlueButton is enabled by default on new installs, since default API credentials are no longer bundled. Administrators still need to register on the BBB portal and enter their server URL and shared secret from the Settings page. Until that's done, BigBlueButton appears in the activity chooser but greyed out, with a tooltip explaining the setup isn't complete.
Free Tier Hosting is currently restricted as follows:
- The maximum length for each session is 60 minutes;
- The maximum number of concurrent users per session is 25;
- Recordings expire after seven (7) days and are not downloadable; and
- Viewers' (student) webcams are only visible to the moderator.
How is it set up?
- In a course, with Edit mode enabled, choose, BigBlueButton from the activity chooser.
- Choose a name and description, and, if desired, a welcome message which will appear in the Chat box when participants join the session.
- If you tick "wait for moderator", students can only join once someone with the moderator role has entered the room.
- From the Participants list you can, if needed, give specific roles to specific people, such as a moderator role.
In the activity settings you can set a grade type (point or scale) and give students grades for the activity in the gradebook.
If enabled by the administrator from Site administration > Plugins > Activity modules > BigBlueButton > Experimental settings, a new section, Guest access, becomes available to course teachers.
Note: Guest access to a BBB session is not possible if your site forces users to log in (i.e. if 'forcelogin' is enabled).
- From Guest access, you can check the box to allow external users without accounts to join the room. When the box is checked, a meeting link and password become available.
From Moodle 5.3, a guest link also works for a Moodle user who's logged in but not enrolled in the course. Their account name is suggested as the guest username but can still be changed, rather than being locked and blocking them from joining, as happened previously.
- In the Schedule section you can set a start time and also a time after which student will not be able to enter the room.
How does it work?
- Once set up, the activity appears with a link to join when the time is correct. (Before then, or if a moderator is required first, a message appears saying the conference has not yet started.)
- On entering the room, a message will appear asking if you want to use your microphone or just listen. If you choose microphone you will need to check your settings.
- The moderator can choose whether to allow participants to use webcams and microphones or not.
- The central area can display presentations, polls, screensharing or an interactive whiteboard.
- There is also a chat option with public and private chat.
Admin settings
From Site administration > Plugins > BigBlueButton, administrators can set the defaults for BBB sessions and recordings in courses.
From Moodle 5.3, safe formats are set using tags rather than a fixed set of checkboxes. Video and presentation are included by default, and admins can add other suggested formats (notes, podcast, screenshare) or type a custom format name matching their own BigBlueButton deployment.
Source: docs.moodle.org/503/en/admin/setting/modsettingbigbluebuttonbn — MoodleDocs (GPL) · Imported 2026-11-10.
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