code: public Parameterable createParameterable(String value) throws ServletParseException {
  		try {			 
  			Header header = SipFactoryImpl.headerFactory.createHeader(ContactHeader.NAME, value);
  			return SipServletMessageImpl.createParameterable(header, SipServletMessageImpl.getFullHeaderName(header.getName()), true);
  		} catch (ParseException e) {
  			try {
  				Header header = SipFactoryImpl.headerFactory.createHeader(ContentTypeHeader.NAME, value);
  				return SipServletMessageImpl.createParameterable(header, SipServletMessageImpl.getFullHeaderName(header.getName()), true);
  			} catch (ParseException pe) {
  				// Contribution from Nishihara, Naoki from Japan for Issue http://code.google.com/p/mobicents/issues/detail?id=1856
  				// Cannot create a parameterable header for Session-Expires
  				try {
  					Header header = SipFactoryImpl.headerFactory.createHeader(ContentDispositionHeader.NAME, value);
  					return SipServletMessageImpl.createParameterable(header, SipServletMessageImpl.getFullHeaderName(header.getName()), true);
  				} catch (ParseException pe2) {
  					throw new ServletParseException("Impossible to parse the following parameterable "+ value , pe2);
  				}
  			}
  		} 		
  	}
docs: {@inheritDoc}