/** Sends a NOTIFY. */
public void notify(Message req) {
String subscription_state = req.getSubscriptionStateHeader().getState();
if (subscription_state.equalsIgnoreCase(ACTIVE)
&& (statusIs(D_SUBSCRIBED) || statusIs(D_PENDING))) changeStatus(D_ACTIVE);
else if (subscription_state.equalsIgnoreCase(PENDING) && statusIs(D_SUBSCRIBED))
changeStatus(D_PENDING);
else if (subscription_state.equalsIgnoreCase(TERMINATED) && !statusIs(D_TERMINATED))
changeStatus(D_TERMINATED);
TransactionClient notify_transaction = new TransactionClient(sip_provider, req, this);
notify_transaction.request();
}
