Please tell us some basic information before asking for help: Model Name: Asus 6z Firmware Version: screenshot attached, it's the latest from asus update service Rooted or not: not Frequency of Occurrence: Always not working, while wifi connectivity is excellent I====================================== Hey, I have enabled wifi calling over mobile network when wifi is available. But it is always in mobile network where wifi signal is excellent. Only Vo-LTE and no Vo-Wifi ? I remember earlier seeing the wifi calling sign in status bar, but now its not working. Why it is happening? Anyone face similar issue ?