The first time you use Jitsi, you will need to download and install the small Jitsi App.

You need create a custom room name in the input box.
Enter the name of the room in the box and a video chat room will be created for you.
You can use uppercase and lowercase letters or numbers in your name.
If you want spaces to appear, use underscores and they will appear as spaces in the room name.
Don't use any other punctuation or it will not work like you want.
Go
Copy the link in your address bar and share it with your group.
Features audio, video, chat and sharing screens
See more features for things like setting password security