synchronized String addListener(ServiceListener listener){
  String id=SMSUtils.getUniqueID();
  listenerObjects.put(id,listener);
  return (id);
}

synchronized String addListener ( ServiceListener listener ) { String id = SMSUtils . getUniqueID ( ) ; listenerObjects . put ( id , listener ) ; return ( id ) ; }
registers for changes to organization ' s configuration . the object will be called when configuration for this organization is changed .
