BasicHttpBinding bindingType = new BasicHttpBinding();
            EndpointAddress epAddress = new EndpointAddress(add); // add:  http://localhost:12345/Service
            ChannelFactory<IContract> _factory = new ChannelFactory<IContract>(bindingType, epAddress);
            IContract  _channel = _factory.CreateChannel();
            long ticks = _channel .Ping(Environment.TickCount);