No problems. I did however ring my provider (Moose Mobile) and they confirmed that VoLTE was provisioned on my account.
To check use *#*#4636#*#* as mentioned above.
Click the 3 dots and select IMS service status. You should see āVoice over LTE: Availableā. If not then ring Telstra and ask for it to be provisioned on your service.
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