public boolean isRemoteFmuc() {
        return getReportedFmucAddress() != null;
    }
Returns true if the user is one that is in the room as a result of that user being in another room that is
federated with this room, through the FMUC protocol

@return true if this user is a user on a remote MUC room that is federated with this chatroom.
xmppserver/src/main/java/org/jivesoftware/openfire/muc/MUCOccupant.java