public class WcfClient<TServer> where TServer : class
    {
        private Binding _binding;
        private EndpointAddress _endpoint;

        public WcfClient(Binding binding, EndpointAddress endpoint)
        {
            this._binding = binding;
            this._endpoint = endpoint;
        }

        public void Call(Action<TServer> function)
        {
            TServer client = null;
            try
            {
                client = new ChannelFactory<TServer>(this._binding, this._endpoint).CreateChannel();
                function(client);
            }
            catch
            {
                throw;
            }
            finally
            {
                if (client != null)
                {
                    IClientChannel channel = (IClientChannel)client;
                    if (channel.State == CommunicationState.Faulted)
                    {
                        channel.Abort();
                    }
                    else
                    {
                        channel.Close();
                    }
                }
            }
        }

        public T Call<T>(Func<TServer, T> function)
        {
            TServer client = null;
            try
            {
                client = new ChannelFactory<TServer>(this._binding, this._endpoint).CreateChannel();
                return (function(client));
            }
            catch
            {
                throw;
            }
            finally
            {
                if (client != null)
                {
                    IClientChannel channel = (IClientChannel)client;
                    if (channel.State == CommunicationState.Faulted)
                    {
                        channel.Abort();
                    }
                    else
                    {
                        channel.Close();
                    }
                }
            }
        }
    }