Hello, I apologize if this question has been asked, I searched for a while but cannot find the answer to my question. I will be traveling in Europe this summer and have a T-Mobile G2. I know that you can use Airplane mode to shut off data while still using Wifi. My question though is, I would like to have all carrier data usage and synching shut off, be able to use Wifi, BUT also be able to receive calls at certain designated times of day. Any advice on how to accomplish this? Thanks!