I don't have any objective way of testing this, but I noticed that the change log for the last update and this one included references to carrier stuff. It seems to me that my phone call clarity has improved. The phone stuff actually worked pretty good for me from the get go. It wasn't perfect but far better than many people were reporting. But it seems, though anecdotal, that it has improved. Unfortunately, I don't really use this phone as a phone, as ironic as that it is for one that mostly works. So I haven't tried in a very long time, which makes this anecdotal report even more suspici