I know this might be a bit crazy, but has anyone else experienced the phenomenon when you hold your 9930 between your shoulder and your chin, and speak to someone, they ALWAYS say "WHATT???? I can't hear you??? It's so muffled!!!"
I've been experimenting with this for a few days, and I can't figure out why it happens. Holding the BB like this does not obstruct the microphone. And I didn't have this issue with my 9650.
Let the speculation begin.