well - hope is never lost
BUT - ATT is doing voice call audio different then international
caused by the different modem for LTE. And since this is
implemented in the properitary audio drivers chances are not good
Some technical details:
voice audio is routed between ril (modem) and the audio driver
and this is completely different on international and ATT
thats why its broken by using the HOX ICS drivers right now
So my only hope would be that we finally find a way to use the
"so-called" JB drivers. I would like to do that on the internationl version too
since using the ICS ones causes some minor issues while basically working.
Right now trying to use the JB drivers causing crashing them right on
loading so they seem to require something "extra" that is incompatible to JB
"standard"
HOX devs have exactly the same problem after they received the
JB upgrade for their device. So ALL AOSP custrom roms are required
to still use the old ICS drivers.
While this limitation is acceptablle for the HOX and the international X+
its causing the above mentioned "dead-end" for ATT right now