SIM TOOLKIT application in C, partial source-code provided

We need a SIM TOOLKIT application to run on SIM cards for mobile phones (GSM). This application has to be written in C and it will use gcc as the compiler. The application has to do the following : - grab cell antennas information provided by the GSM (source code example supplied here attached : cells.c) - store them on the SIM card every minute. - once every xx minutes, take all recorded cell info and send it either by GPRS (if available) or by SMS (source code attached : net.c and pos.c) - have a menu to allow the GSM user to start, stop and configure information sending - start, stop, configure can also be sent by SMS to the phone The source code we attach here is completely open source and we can provide all needed information about the development environment and tools. Our application is mostly to put together the working examples we provide and to add simple menu and SMS interface to configure it.