Abstract: Communication is an exchanging of information by speaking, writing, or by using some other medium. If information exchange is carried out with the help of mobile devices that Communication is called Mobile Communication. Communication in mobile networks is possible whenever the signal is receiving by the mobile. If the signal is not receiving by the mobile and the user is in some trouble, intimation about that trouble to any other is not possible. So, intimation about that trouble is possible by sending SMS (Short message service) in GSM (Global system for Mobile communication) based and GPS (Global Positioning System) based mobiles even if the mobile is not receiving network signal with the help of location based services. In this paper we explain how to reach the user when his/her mobile is not in coverage area.
Keywords: GSM (Global system for Mobile communication), GPS (Global Positioning System), SMS (Short message service), Mobile, Trouble Intimation System.