I'm trying to help a student who's visiting my lab find a phone to use for the summer. He's from Madrid and says that Movistar (Telefonica) told him his prepaid phone would hop onto Cingular's network over here, but it hasn't. He wants to pick up a phone to use over here, but only so he can be reached- he doesn't need to make a lot of calls. Ideally, he says, he'd like to get a prepaid phone over here that he can take back to Spain to use with his current SIM, there, in the fall. Does anyone know the specs of the Movistar network, or where I can find a list of phones that will also work there?