Device control by using GSM network

In the age of electronic systems it is important to acquire and control information from everywhere. Here we present a novel secure real time method to control device. We summarizes a study conducted to examine the feasibility of implementing Global System for Mobile Communications (GSM), using Duel Tone Multi-Frequency (DTMF) as an alternative means of communication to Radio Frequency (RF) to control electrical appliances. In remote communication, DTMF signal can replace RF signal for the advantage of simplicity and audibility. A user can send DTMF tone to control home appliances or machines in industries. Any GSM mobile phone can be employed to send DTMF tone. The advantage of this system is the use of GSM technology for communication and at a time control of many devices. This paper deals with the design and experimentation, which can be useful for the people who are working in research laboratory, industry & education in the field of Communication, Control, wireless technology etc.