i've had problems with aokp also. the freezing i can't help with. had problems before kit kat and even worse after. i tried fixing it myself. the phone calls are your mobile network settings if i'm not mistaken. check my recent question here if a stock mk2 rom will help. otherwise, a different aosp rom wouldn't normally have those problems.

edit: also the most common advice for people who have trouble with odin are 1) try different usb ports and 2) try different versions of odin