Looks like I jumped the gun on this one
I'll have to test with a fresh install, but if you do a 'yum -y update' it breaks music on hold for sure, if not more. The current fix is to copy one of the provided .mp3s to LICENSE.mp3
Also, the festival text-to-speech is pretty messed up as well. At least, the original weather AGI can't seem to get the text converted fully. And if you have built any AGI's using the same methods (calling the festival-script.pl) they also don't work.