/** Update the dialog with the response. Could be needed if there has been multiple dialogs. */
public void updateDialog(SipServletResponse response) {
SipSession session = response.getSession();
if (session.equals(_session)) return;
if (!session.getCallId().equals(_session.getCallId()))
throw new IllegalArgumentException(
"Session " + session + " is not a derived session from " + _session);
String localTag = response.getFrom().getParameter("tag");
if (!localTag.equals(_session.getLocalParty().getParameter("tag"))
&& !localTag.equals(_session.getRemoteParty().getParameter("tag")))
throw new IllegalArgumentException(
"Session " + session + " is not a derived session from " + _session);
_session = session;
}
