I think I'm one of the unlucky few who have the call quality problems noted previously, although I think I have it narrowed down to it being faulty hardware. In my situation I have very good reception plus good sound when I listen to a call through the back speaker and blue-tooth. So would I be correct in believing that the Inc has two separate speakers, one for the ear, the other for the back? Have you who have had poor call quality tested both speakers to see if it is consistanly poor in both? If this is the case then others who have this experience can quit trying/hoping for software fixes and just go the exchange route.