code: private Address createAddress(String host, int port) {
  		SipUri sipUri = new SipUri();
  		try {
  			sipUri.setHost(host);
  		} catch (ParseException e) {
  			logger.logError("Bad load balancer host " + host, e);
  			return null;
  		}
  		sipUri.setPort(port);
  		return addressFactory.createAddress(sipUri);
  	}
docs: Creates a {@link Address} with a {@link SipUri}, from the specified host
  and port. Note that the uri has no transport set.
  
  @param host
  @param port
  @return