Bluetooth Sound but no Mic

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http://forum.xda-developers.com – I have a bluetooth headset (Jawbone Era) as well as a JVC car head-unit which connects by Bluetooth. I've used both successfully with my GS3 in the past, but right now, although I can get incoming audio on both (as well as media playback), but on both, nobody can hear me talking. I've tried unpairing and re-pairing the bluetooth and head-unit headsets, but I still have audio in, not audio out. I'm bone stock, not even rooted. Any suggestions? (HowTos)