Once you see the "VoLTE carrier check was disabled" pop-up at the bottom of the screen, you'll find the VoLTE option has been added to your Settings.
Step 3
Now, head to Settings and tap on SIM cards & mobile networks.
Step 4
Choose your active SIM, which might be labeled "SIM 1" or show your provider's name
Step 5
Locate and enable "VoLTE" or "Make calls using VoLTE" by scrolling down and toggling it ON
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