修改frameworks/base/core/res/res/values/config.xm
<!-- Flag specifying whether VoLTE, VT and WFC is available on device -->
<bool name="config_device_volte_available">true</bool>
<!-- meig:jicong.wang remove vt function start {@ -->
<bool name="config_device_vt_available">false</bool>
<!-- meig:jicong.wang remove vt function end @} -->
<bool name="config_device_wfc_ims_available">true</bool>