If people cannot hear me
- The meter does not move: pick another microphone; laptops often default to a disconnected headset.
- Windows: Settings → Privacy → Microphone, allow apps and the browser. macOS: System Settings → Privacy → Microphone.
- Works here but not in the app: the app uses another microphone, or another program holds it.
Test call quality: VoIP test. More: webcam test, speaker test.