public interface ConferenceMembersSoundLevelListener
Notifies interested parties in ConferenceMembers sound level changes.
When a CallPeer is participating in the conference also as a
ConferenceMember its audio level would be included in the map of
Indicates that a change has occurred in the sound level of some of the
ConferenceMembers coming from a given CallPeer. It's
presumed that all ConferenceMembers NOT contained in the event
have a 0 sound level.
event - the ConferenceMembersSoundLevelEvent containing
the new level