First and foremost, I'm an idiot. I flashed a modem with RIL on it without researching what RIL meant. Now my phone can't make calls on any modem I flash. I installed GetRIL and it confirms that my modem and RIL don't match, but it doesn't seem to be able to fix it.
Can I flash the RIL? And with what?
I'm on CM11 4.4.2
Edit: I did an update of CM11 (from a snapshot to a nightly) and it seems to have set the RIL back to something functional. Now if I can just find a modem that doesn't suck!