/** Called when the speed slider was moved. */
 public void SpeedSlider_stateChanged(ChangeEvent e) {
   JSlider source = (JSlider) e.getSource();
   if (!source.getValueIsAdjusting()) {
     int speed = source.getValue();
     notifyControllerListeners(ControllerEvent.SPEED_CHANGE, new Integer(speed));
   }
 }
  /**
   * Listens for network changes and if we have a down interface and we have a tcp/tls provider
   * which is staying for 20 seconds in unregistering state, it cannot unregister cause its using
   * the old address which is currently down, and we must recreate its listening points so it can
   * further reconnect.
   *
   * @param event the change event.
   */
  public void configurationChanged(ChangeEvent event) {
    if (event.isInitial()) return;

    if (event.getType() == ChangeEvent.ADDRESS_DOWN) {
      for (final ProtocolProviderServiceSipImpl pp : listeners) {
        if (pp.getRegistrarConnection().getTransport() != null
            && (pp.getRegistrarConnection().getTransport().equals(ListeningPoint.TCP)
                || pp.getRegistrarConnection().getTransport().equals(ListeningPoint.TLS))) {
          ResetListeningPoint reseter;
          synchronized (resetListeningPointsTimers) {
            // we do this only once for transport
            if (resetListeningPointsTimers.containsKey(pp.getRegistrarConnection().getTransport()))
              continue;

            reseter = new ResetListeningPoint(pp);
            resetListeningPointsTimers.put(pp.getRegistrarConnection().getTransport(), reseter);
          }
          pp.addRegistrationStateChangeListener(reseter);
        }
      }
    }
  }