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.
Your iPhone
iPhone 18 Pro MaxiPhone 18 Pro Max (US)iPhone 18 ProiPhone 17eiPhone AiriPhone 17iPhone 17 Pro MaxiPhone 17 ProiPhone 16eiPhone 16 PlusiPhone 16iPhone 16 Pro MaxiPhone 16 ProiPhone 15 Pro MaxiPhone 15 ProiPhone 15 PlusiPhone 15iPhone 14 Pro MaxiPhone 14 ProiPhone 14 PlusiPhone 14iPhone SE (3rd generation)iPhone 13iPhone 13 miniiPhone 13 Pro MaxiPhone 13 ProiPhone 12 Pro MaxiPhone 12 ProiPhone 12iPhone 12 miniiPhone SE (2nd generation)iPhone 11 Pro MaxiPhone 11 ProiPhone 11
The iPhone 11 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.