The main purpose of this paper is to present an idea of using mobile technology for optimization of orders management inside a restaurant. For implementing this idea we used SQL Server 2008 R2 Express for databases, Visual Studio 2010 Express for Windows Phone for developing the application used from phones, Visual Web Developer 2010 Express for developing web services, Internet Information Server for expose the web services to the internet. The phone application can be deployed to Windows Marketplace, and can be downloaded by any potential user. In this case the application can be used by any client of the restaurant if they will receive a username and a password. The entire process of placing orders can be transferred directly to the client, and can be made with the hardware of the client. More clients means more hardware’s which can be used concurrently.