I've spent the last 30 minutes trying to find an answer to the following question without luck: I want to be able to use my iPhone's GPS while in another country, and NOT use or get charged for any cell network calls/texts/traffic/data/etc. Is this possible? All I know for sure is that: 1. "Airplane mode" guarantees what I want, but also disables GPS. 2. Without airplane mode, all the other "Disables" tend to not cover everything that you think they do. For example, I see reports of people turning off cell data and roaming, but get charged when their phone receives a voicemail (even if they don't listen to it). So can anyone tell me what's possible here? As an aside, wtf is with disabling GPS in airplane mode? It's a passive sensor, it does not transmit afaik, right?