Fix the "is webrtc supported" titles on buttons and make the video / voice call buttons appear in multi-user rooms but be greyed out with approriate titles.
title ="{{ !state.webRTCSupported ? 'VoIP requires webRTC but your browser does not support it' : (memberCount() == 2 ? '' : 'VoIP calls can only be made in rooms with two participants') }}"
title ="{{ !state.webRTCSupported ? 'VoIP requires webRTC but your browser does not support it' : (memberCount() == 2 ? '' : 'VoIP calls can only be made in rooms with two participants') }}"