I wrote a negative review of this phone at first, because I could not find a way to disable the very annoying noises it does whenever you lock or unlock the keypad. Now, I have found there is a way so I'm changing my review.
Here's what to do: go to sound profiles, select the customised user setting. You can then edit that setting, and go into volume. At the bottom there is a volume control for notifications, that can be turned to zero.
Having done that, it's now quite a pleasant wee thing. Great battery life, nice and cool to hold compared to my 3g phone I had before, absolutely great to have 2 mobile networks for when you need rural coverage and it's not a bad thing to use.
It's a shame they haven't put more thought into the menu system. A lot of little things that would be nice, like assigning a shortcut to switch the torch on and off, use T9 for typing messages etc just isn't there. I don't need that, so I'm very happy with the phone now.