try {
            var factory = new ConnectionFactory() { HostName = "xxx" , UserName ="xxx", Password="xxx"};
            using(var connection = factory.CreateConnection())
            using(var channel = connection.CreateModel())
            {
                channel.ExchangeDeclare(exchange: "call_notify", type: "fanout");

                var queueName = channel.QueueDeclare().QueueName;
                channel.QueueBind(queue: queueName,
                                  exchange: "call_notify",
                                  routingKey: "");

                var consumer = new EventingBasicConsumer(channel);
                consumer.Received += (model, ea) =>
                {
                    var body = ea.Body;
                    var message = Encoding.UTF8.GetString(body);
                    Console.WriteLine(message);
                };
                channel.BasicConsume(queue: queueName,
                                     autoAck: true,
                                     consumer: consumer);

                Console.WriteLine(" Press [enter] to exit.");
                Console.ReadLine();  // Program does'nt wait here in windows form based application
            }
        }