Target : create an embedded application on mobile phones that can save and store mobile phone usage data: dialed number, date, length of call, number of the sim card… The application will have to remain in the memory all the time: whenever the user switches on his mobile phone, the application will have to be launched, without any manipulation to be required. The sim card will store all of the data generated by the application. 30 to 40 models of phones will have to be equipped, including...