message: Ignore media actions
  Hopefully the comment explains all
  Fixes
diff: @@ -495,6 +495,15 @@ async function _startCallApp(roomId, type) {
  // with the dispatcher once
  if (!global.mxCallHandler) {
  dis.register(_onAction);
  + // add empty handlers for media actions, otherwise the media keys
  + // end up causing the audio elements with our ring/ringback etc
  + // audio clips in to play.
  + navigator.mediaSession.setActionHandler('play', function() {});
  + navigator.mediaSession.setActionHandler('pause', function() {});
  + navigator.mediaSession.setActionHandler('seekbackward', function() {});
  + navigator.mediaSession.setActionHandler('seekforward', function() {});
  + navigator.mediaSession.setActionHandler('previoustrack', function() {});
  + navigator.mediaSession.setActionHandler('nexttrack', function() {});
  }
  const callHandler = {
  