public void SaveSettings(List <Int32> idUsers)
        {
            long idCall = View.IdCall;

            if (UserContext.isAnonymous)
            {
                View.DisplaySessionTimeout();
            }
            else
            {
                List <BaseForPaperPersonAssignment> pAssignments = CallService.AddPersonAssignments(idCall, idUsers);
                if (pAssignments != null && pAssignments.Any())
                {
                    View.DisplayUserAssignmentsAdded();
                    LoadAssignments(idCall, pAssignments.Select(a => a.AssignedTo.Id).ToList());
                }
                else if (pAssignments != null)
                {
                    View.DisplaySaveErrors(true);
                }
            }
        }