public FrontDeskCallBackUI()
 {
     frontDeskCallBack = new FrontDeskCallBack();
     lockObj           = new object();
     t        = new Thread(listenToServer);
     isFinish = false;
 }
 public FrontDeskCallBackUI()
 {
     frontDeskCallBack = new FrontDeskCallBack();
     lockObj = new object();
     t = new Thread(listenToServer);
     isFinish = false;
 }