I use the button at the top of the shift to lock my phone as needed, but when I do this there doesn't seem to be a way to quickly silence any ringtone or notification on the phone. I have to press the button, unlock the screen and then, for example, go to the message to get it to stop! Even when it's not locked I haven't been able to figure out how to do it, in fact. It can be a little embarrassing to fumble around with the darned thing when it seems to be the loudest thing in the room! I'd like to be able to push a button or do something that makes it immediately stop. My last phone did that, and so does my husband's Blackberry - there MUST be a way, mustn't there???