A Jitsi instance for videoconferencing is available at jitsi.physik.fu-berlin.de. There is no need to install any software or create an account and it works directly in the browser, but Clients for Android and iOS exist as well.

Videosessions can be started by pressing the Button labelled Go, which will use randomly created name for conference room, but names can also be entered in the field next to the button. The first person to enter a room may set a password, that is needed for further users to enter.

Rooms are ephemeral and cease to exist once the last person leaves.

• The only supported browsers are Firefox and Chrome based browsers (Google Chrome on Windows, MacOS and Linux or Chromium on Chrome). Even though Firefox is generally preferable, as it both more privacy friendlier and nowadays faster, currently only Chrome based browsers support Simulcast, which greatly reduced bandwidth usage.
• By default only the speaker is shown, on the bottom right is a symbol of two-by-two squares to enable tiled view, which shows all participants at the same time.
• Press "a" for a menu to reduce your camera resolution.
• Press "m" to mute yourself. When muted press the space bar for "push-to-talk".
• Press "r" to "raise your hand", i.e. announce that you would like to talk.
• Use a headset.