Hello. I have iOS 7. It turns out that Siri works just fine when my iPhone is connected to my Wi-Fi network, but when I go outside and enable data network (3G in my town), Siri doesn't work at all. It will tell me something like "sorry, I can't help you right now. Try again later" and blah blah. I already tried reseting the network settings, but that doesn't solve the issue. Ideas?