I'm just about to start an academic project in .NET that's related to mobile technology.
My main aims are to provide an sms/mms sending application with .NET that is schedulable (i.e. I can schedule an SMS to be sent at a particular date and time). I have read that this can be done using AT commands but I still haven't found anywhere how to send MMS using AT commands. I'd also be much grateful if you could give me a step by step instruction on how to use these commands. I'm planning on connecting via bluetooth, is that ok for AT commands (I'm not 100% sure what AT commands are in the first place).
Another feature is that I'd possibly like to know if a user is at particular locations so that I only send the message to certain users. Is there a way to do that?