I have had those barks and chips as well but they have stopped when I started using the 10.2.0.17xx builds. They sound great now.
I'm currently running on build 1791 with no issues in call quality. Give it a try.
problem is, i'm still on 10.2.0.1047 so it looks like i can only use the .1048 radio file (.1156 also works)
im not ready to jump ship on a leak w/ pin watermarks