????6??12?????????????????????(MAE)???泄????携?????KT????????VoLTE?????????????????味VoLTE?????y??????????????

???????????????????????????VoLTE???????TD-LTE??LTE FDD?????????????????????????VoLTE??2G??????????????谢? (??eSRVCC)????TD-LTE??VoLTE???????????????????????????????KT???泄????VoLTE????????KT VoLTE???????????????????????????????IMS???渭?????畏???????????????

??????????泄????????????3?????KT???????????????VoLTE???胃???????????????????????????VoLTE???????????????????????????????????????????4G????????畏?????????????????SCFA??????????????锟�??????????喂???????????LTE?????????????渭?VoLTE????????????2??25?????????????4G??????????危??VoLTE???????蔚???????????????????????????????????????TD-LTE??????????????

????????????????泄????????6??/??????8???????????4G??????????畏?????????15??????????4G??????????尾???????????????????????4G??/???????4G???巍?