Default No Call sound using Bluetooth?

I can use my phone's audio out via bluetooth headset now, however, it only outputs non-call audio. When I call someone, it goes through, but I can't hear anything (and they can't hear me). I know it's not the headset (I tested it with another phone.)
I feel like I've tried everything. It does this on Stock and MOAR 8.0, with the ML1 Modem and Safestrap.
Suggestions? Thanks in advance.