You need to give permission in macOS for Wavebox to access the camera & microphone and you also need to give permission for Microsoft Teams to use these.
- Open System Preferences > Security & Privacy
- Click the privacy tab
- Ensure that Wavebox has both Camera and Microphone permissions
- Restart Wavebox
For Microsoft Teams.
- Launch Microsoft Teams
- Click on the padlock icon in the addressbar
- Ensure that Camera & Microphone permissions are both set to allow
- 4. Reload Teams