public ActionResult ViewCallReportList()
        {
            ClearSessionData();

            IEnumerable <ListCallReportViewModel> resultModel = new List <ListCallReportViewModel>();

            ICustomerVO sessionCustomer = (ICustomerVO)Session["SessionCustomer"];

            if (sessionCustomer != null)
            {
                IList <ICallReportVO> callReportList = CallReportManager.RetrieveCallReportsByCustomerId(sessionCustomer.Id);

                resultModel = (IEnumerable <ListCallReportViewModel>)
                              CallReportMapper.Map(callReportList,
                                                   typeof(IList <ICallReportVO>),
                                                   typeof(IEnumerable <ListCallReportViewModel>));
            }

            return(View(resultModel));
        }