Please tell us some basic information before asking for help:
Model Name: Rog 5
Firmware Version: WW_18.0840.2109.188
Rooted or not: Not
Frequency of Occurrence: Happily always!
APP Name & APP Version (If your issue relates to the app): Phone calls
In addition to information above, please also provide as much details as you can, e.g., using scenario, what troubleshooting you've already done, screenshot, etc.
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Thank you ASUS for supporting VoLTE & VoWiFi on Telstra mobile network, in Australia starting Nov 2021 firmware update! This has been long overdue, but, as they say, better late than never 😀.
Thank you. I hope the future ASUS phones have these sorts of essential functionalities right off the bat as and when the new phones are released in our market (and in hopefully every market you sell your phones to).
Good luck for those lacking these functionalities (and been patiently waiting!) that you too hopefully will soon be getting a similar treatment in your country on the mobile carrier of your choice.