What do the buttons in the Jitsi interface do?

The toolbox at the bottom of the screen gives you various options. The icons are the same on your mobile phone, but are in a different order there.

Knop voor de microfoon With this button you can turn the microphone on/off.
Knop om deelnemers uit te nodigen With this button you can see all participants in the meeting, and invite participants via the next menu.
Knop voor de camera With this button you can switch the camera on/off.
Knop om tile view aan/uit te zetten With this button you can switch between tile view (all participants visible on screen) or only the active participant visible.
Knop voor het delen van je scherm With this button you can share your screen.
Knop om bij het instellingen-menu te komen This button gives you more options. This button also takes you to the settings menu.
Knop om de chat te openen This button opens the chat.
Knop om de vergadering te verlaten With this button you can leave the meeting.
Knop om je hand op te steken With this button you can raise your hand.