I cannot hear my client (or my client cannot hear me)

• Check that your volume is not muted
• Check that your headphones are plugged in
• In the call window, click the Settings button (bottom right).
• Check that the proper input and output have been set for your audio and video.
• Check that you (or your client) have given your browser (or, in the case of the iOS or Android app, the app) permissions to access your camera and microphone.