Access is open from the RENATER Fédération Éducation-Recherche and also from Edugain Federation.
Everyone with a federated account can start a web conferencing on RENdez-vous.

Anyone can join a started RENdez-vous web conferencing.

RENdez-vous web conferencing servers are running on RENATER datacenters in Paris, France.

Windows, MacOSX, Linux, Android, IOS

When you connect to RENdez-vous, your browser will ask you permissions to use microphone and camera with a dedicated pop-up
If you want to change previously stored media permissions :
With Chrome : chrome://settings/content?search=conf
With Firefox : about:preferences#privacy section Permissions

Not yet implemented (Sorry).

From your dekstop or mobile, use a headset or a good directional microphone.
From a meeting room use an omnidirectional microphone.
If the sound of some participants is disturbing, you can lower it using particpants sound volume interface.

1. On your Mac, choose Apple menu > System Preferences.
2. Click on Security & Privacy then click Privacy.
3. Select Screen Recording.
4. Select the tickbox next to an app to allow it to record your screen.