CallActivity.java

                final Set<Map.Entry<String, Participant>> participants = connectedTo.getParticipants().entrySet();
                Log.i(TAG, "Listing participants for room " + room.getName());
                for (Map.Entry<String, Participant> entry : participants) {
                    final Participant participant = entry.getValue();
                    Log.i(TAG, String.format("Identity: %s - SID: %s", participant.getIdentity(), participant.getSid()));
                }