* commit '34e4dc4b09045c882ad7a30b26d78d787d74c264': Separate VoLTE and VT configurations to enable devices/carriers to have VoLTE without VT.
* commit '34e4dc4b09045c882ad7a30b26d78d787d74c264': Separate VoLTE and VT configurations to enable devices/carriers to have VoLTE without VT.