Can you hear me now?

Is there a dignified way of trying to reestablish communication through a cellphone after the signal goes on the blitz? The best I can think of is just going "hello? hello? hello?" until the other party can hear you again. As... simple... as this is, it's very undignified. Not to mention annoying. I suppose there's not much you can do about it. Stew-pid cell phones.