code: public SipApplicationSession getApplicationSession() {
  		MobicentsSipApplicationSession sipApplicationSession = getSipApplicationSession();
  		if(sipApplicationSession == null) {
  			return null;
  		} else {
  			return sipApplicationSession.getFacade();
  		}
  	}
docs: /*
  (non-Javadoc)
  @see javax.servlet.sip.SipSession#getApplicationSession()