code: @Override
      public synchronized void stop(StopContext context) {
          try {
              sipService.stop();
              // FIXME: kakonyii
              // server.stop();
          } catch (Exception e) {
          }
          // FIXME: kakonyii
          // engine = null;
          // service = null;
          // server = null;
          // sipEngine = null;
          sipService = null;
      }
docs: {@inheritDoc}