修改

CallCenterApi/CallCenterApi.Interface/CallCenterApi.Interface/Controllers/tel/CallrecordsController.cs

             {
                 if (Business == 2)
                 {
-                    sql += " and (Business = 2 or Business is null)";
+                    sql += " and (Business = '2' or Business is null)";
                 }
                 else
                 {
                 }
                 else if (callstate.Trim() == "3")
                 {
-                    sql += " and CallState=0 and CallType=0 and isnull(UserCode,'')='' and Business!='1' and Business!='4' ";
+                    sql += " and CallState=0 and CallType=0 and isnull(UserCode,'')='' and (Business is null or Business='2' or Business='3') ";
                 }
                 else if (callstate.Trim() == "4")
                 {