When participants are added to a local conference, a remote conference is created that allow the remote participants to receive notifications about newly added participants and other events if the event conference package is enabled
Delete private classes of LocalConferenceEventHandler, RemoteConferenceEventHandler, Participant, ParticipantDevice, Conference, LocalConference, RemoteConference, RemoteConferenceEventHandler, LocalConferenceEventHandler
Send 200OK to subscribes whose state is terminated and expires field is set to 0
Create audio video conference tester whose task is to verify conference behaviour