code: @Override
  	public Connector addSipConnector(String connectorName, String ipAddress, int port, String transport) throws Exception {
  
  		Connector sipConnector = new Connector(SipProtocolHandler.class.getName());
  		SipProtocolHandler sipProtocolHandler = (SipProtocolHandler) sipConnector
  				.getProtocolHandler();
  		sipProtocolHandler.setPort(port);
  		sipProtocolHandler.setIpAddress(ipAddress);
  		sipProtocolHandler.setSignalingTransport(transport);		
  
  		((SipStandardService)service).addConnector(sipConnector);
  		return sipConnector;
  	}
docs: /*
  Add SipConnector