Is there any option that makes it so the phone connects automatically when its required? For example, I open up the internet browser or an app that requires a connection and it starts the internet conection without me having to do it manually? And is there a way of it disconnecting automatically when the connection is idle? Also, on my phone, when I am connected, I only ever see H, E and G but never 3G. I am on o2 in the UK, can anyone tell me why I'm not seeing 3G?