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iPhone carrier features

Voice over 5G (VoNR) on iPhone

Calls stay on 5G instead of dropping your connection to LTE while you talk.

Where to turn it on: Settings › Cellular › Cellular Data Options › Voice & Data › Voice over 5G.

The iPhone SE (2nd generation) has no 5G modem, so Voice over 5G (VoNR) is not available on it with any carrier.

Questions

Why does Voice over 5G (VoNR) depend on my iPhone?

Carriers ship settings for each iPhone model separately. The same carrier can offer a feature on newer iPhones and not on older ones, or the other way round.

Where do these answers come from?

From the carrier settings Apple publishes for each carrier, read for each iPhone model. Some features also need your plan to include them; those show as available.

Other features