Please tell us some basic information before asking for help:
Model Name: ROG Phone 3 (512GB/16GB).
Firmware Version: latest, WW_17.0823.2012.131.
Rooted or not: not rooted.
Frequency of Occurrence:
APP Name & APP Version (If your issue relates to the app):
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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Why can't I use the VoLTE and WiFi-Calling?
I can't even see those options in the settings area.
I'm from IL, the cellular provider supports both VoLTE and WiFi-Calling and claims that my phone does not support it.
Can you please advise?