code: public Iterator<Locale> getAcceptLanguages() {
  		LinkedList<Locale> ll = new LinkedList<Locale>();
  		Iterator<Header> it = (Iterator<Header>) this.message
  				.getHeaders(AcceptLanguageHeader.NAME);
  		while (it.hasNext()) {
  			AcceptLanguageHeader alh = (AcceptLanguageHeader) it.next();
  			ll.add(alh.getAcceptLanguage());
  		}
  		return ll.iterator();
  	}
docs: /*
  (non-Javadoc)
  @see javax.servlet.sip.SipServletMessage#getAcceptLanguages()