Just a tip for those people who are experiencing bad quality. I recently ordered two Verizon Samsung Galaxy S3 phones (both had update stickers on their box which I'm guessing the software on the phone has been updated recently) both with the stock ROM. Specifically, my family and friends would complain about the call quality. They had a hard time hearing me. My voice would sound muffled and faint. There were also complaints about static. This would happen whether I was on the handset, headset, or speakerphone. I tried a few things to fix the issue. I called Verizon. They tried refreshing the VLR on their end. I have no idea what that does but it didn't help me. I then looked on the Internet for any ideas. I tried disabling voice privacy (Phone > Call Settings > uncheck Voice Privacy) which seemed to help a little. I also tried disabling noise reduction when in handset mode (Phone > Call Settings > Additional Settings > uncheck noise reduction). That had no effect. I then read on a web page that a factory reset was supposed to help. So I also did a factory reset (Menu > Settings > Back up and reset > Factory data reset). That did not work either. However, I then wondered if the person who suggested a factory reset might have also implicitly expected me to clear the cache partition, too. I booted into recovery mode by simultaneously pressing on the up volume key, the home button, and the power button. In recovery mode, I then performed the following: select "wipe cache partition" select "wipe data/factory reset" select "reboot system now" After I did this, I believe the call quality improved immensely (at least that's what my friends and family are telling me). I wonder if I even had to do the factory reset - maybe all I needed to do was to clear the cache partition. Hope this helps others who were in a panic because the call quality problem is a dealbreaker for me. If people can't hear me talking, then I would have returned my S3s. And I would have hated to do that since this phone is awesome - infinitely better than my craptastic Samsung Moment... Some people may already know this solution, but I certainly didn't and I'm certainly not an Android expert.