public ListenCall GetNextCall() // List(Of CallRecord)
        {
            ListenCall objListenCall = new ListenCall();

            try
            {
                if (!HttpContext.Current.User.Identity.IsAuthenticated)
                {
                    return(objListenCall);
                }
                objListenCall = objCCInternalLayer.GetNextCall();
            }
            catch (Exception ex)
            {
                throw ex;
            }
            return(objListenCall);
        }
        public ListenCall GetNextCalibration()
        {
            ListenCall objListenCall = new ListenCall();

            try
            {
                if (!HttpContext.Current.User.Identity.IsAuthenticated)
                {
                    return(objListenCall);
                }
                string userName = HttpContext.Current.User.Identity.Name;
                objListenCall = objCCInternalLayer.GetNextCalibration(userName);
            }
            catch (Exception ex)
            {
                throw ex;
            }
            return(objListenCall);
        }