This article shows how to call using Google Chrome. Other browsers may offer slightly different experiences. (For Internet Explorer and Safari, you will need to download a plug-in.)
Pressing the "Join room in browser" button takes you to a "preflight" page where you can ensure camera, microphone and speakers are working correctly before entering the room.
If you do not see your own image or hear a sound when testing speakers, go to the Settings page:
Save any changes and click "Join now".