for call recording you can use http://xdaforums.com/showthread.php?t=1441643
works even more perfect then the xposed mod i used before (the one you mentioned which does not work on 4.4.2 anymore),
you can set auto convert to mp3, auto-upload...
and: sound quality is perfect!
You can't downgrade from kitkat 4.4.2 to JB 4.3
Call recording is working on the newer kitkat firmwares
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