ABSTRACT: This paper presents a new novel application system based on mobile/wireless control system networks. The AT commands where analysed and processed by the application system to manage a distributed multi-function mobile/wireless control system. To evaluate the application system a full home prototype model were built to be used in a real time control system. In this system, a real time data can be accessed worldwide using the proposed application system via a GSM modem. The proposed application system shows a significant results when it used with a GSM (Global System for Mobile)[1]. A distributed multi-function control system were used and tested. The system can also be configured to control an alarm or any other electrical device via a mobile phone using SMS text messaging. The proposed application system can control a home automation from the remote location, determines the real time actions with a feedback from the system. The Cellular Shield will send the signal to the output PIN’s which are programmed using Java language to control the devices operation. The concerned authority can control the system through his mobile phone by sending AT Commands to the GSM modem connected to the computer and the proposed application system works with all GSM modem technologies [2] and in turn to main board controller. The application system providing the access to the system for security and auto-mated monitoring and control the system operations remotely.