i'm trying to figure out what happens with an application when a call is received, and what is the sequence of events. i thought that the app would be put to sleep (set to ignore events, or just touch events), then resurrected automatically when the call is done. my little research looks like it is terminated, and then restarted when the call is hung up. is there any documentation from apple that details this behavior? because for example, while in the call, i would be interested in getting back my app on the screen, without having to restart it.