I've flashed and reflashed just about every ROM on the page and nothing will fix the calling problem. If i leave HD calling on I hear the dial tone but no audio when they answer, If i turn it off theres no audio whatsoever and the calls all connect to the other phone. I cannot even revert to stock because all the RUUs get rejected by a signature error or OS version error. Im currently uploading the US unlocked OTA zip for pie onto MEGA if anybody can help.