Merge pull request #8648 from capilkey/2.2-new-audio-state

bigbluebutton-html5/imports/api/audio/client/bridge/sip.js

.../imports/api/meetings/server/modifiers/meetingHasEnded.js

bigbluebutton-html5/imports/api/voice-call-states/index.js

...ml5/imports/api/voice-call-states/server/eventHandlers.js

.../voice-call-states/server/handlers/voiceCallStateEvent.js

...utton-html5/imports/api/voice-call-states/server/index.js

...oice-call-states/server/modifiers/clearVoiceCallStates.js

...-html5/imports/api/voice-call-states/server/publishers.js

...n-html5/imports/api/voice-call-states/utils/callStates.js

...n-html5/imports/ui/components/subscriptions/component.jsx

bigbluebutton-html5/server/main.js