I got the 2.1 update yesterday, and as I was going through all the new features I found something under Settings that I quite don't understand (either it's a new feature or something I just didn't notice before). I'm from Sweden and I have Swedish language on my phone, but I'll try and translate everything into English properly, hope you understand what I mean. Under Settings > Sound and screen, there is something called "Discrete ringing when ca" (the title is too long and I can't read it all, but I assume it says "call" or "calling"), and underneath it says "Lower ringing volume when the phone is moved". How does this work? What does it do?