Microphone, speaker and ringtone
Settings (in the sidebar) chooses which Microphone and Speaker the browser uses for calls, and the Ringtone volume. These apply to this browser only.

- Browser default follows your computer’s own choice.
- Test sound plays a sound on the chosen speaker.
To check both together, call *43, the echo test (Calls in the browser).
A headset you plug in during a call may need choosing here. If the list is empty or has no names, allow the microphone in your browser first.