anchor.diff:      Pending = pending_iter(ets:first(nksip_store_ord), Now, []),
       {reply, Pending, State};
   
  +handle_call(stop, _From, State) ->
  +    {stop, normal, ok, State};
  +
   handle_call(Msg, _From, State) -> 
       lager:error("Module ~p received unexpected call ~p", [?MODULE, Msg]),
       {noreply, State}.
  
positive.code: %% @private
  start_link() ->
      gen_server:start_link({local, ?MODULE}, ?MODULE, [], []).
          
  
  % @private 
  -spec init(term()) ->
  
negative.code:     {setup, 
          fun() -> 
              ?debugFmt("Starting ~p", [?MODULE]),
              case start_link() of
                  {error, {already_started, _}} ->
                      ok;
                  {ok, _} ->
                      do_stop
              end
          end,
          fun(Stop) -> 
              case Stop of 
                  do_stop -> stop();
                  ok -> ok 
              end
          end,
  