Let's assume that I know my device will fall in the ocean in 6 months, I'm not allowed to buy insurance, and my contract expires in 18 months. I'm also a terrible swimmer, and Michael Phelps won't get it for me.
I would think that you could reverse engineer the code and make your own phone calls from a different device, even without the sim card. You just need to be able to program it.
I'm mostly curious if this has been done before and if it has a name. Are there any similar tricks/ideas?