private CallEvent endOfCallEvent() {
   CallEvent event = new CallEvent(CallState.MAIN_MENU.name());
   CallEventCustomData data = new CallEventCustomData();
   event.setTimeStamp(DateUtil.now().plusMinutes(1));
   event.setData(data);
   return event;
 }
 private CallEvent messagesEvent() {
   CallEvent event = new CallEvent(CallState.PULL_MESSAGES.name());
   CallEventCustomData data = new CallEventCustomData();
   data.add(
       CallEventConstants.CUSTOM_DATA_LIST,
       "<response><playaudio>http://localhost/response1.wav</playaudio><playaudio>http://localhost/response2.wav</playaudio></response>");
   data.add(CallEventConstants.CALL_STATE, CallState.PULL_MESSAGES.name());
   event.setTimeStamp(DateUtil.now());
   event.setData(data);
   return event;
 }