VoLTE is an abbreviation for Voice over LTE (4G). Rather than over the 3G/2G network, your device will stay on 4G rather than drop to 3G to make a voice call.

How to enable VoLTE:

1. Check whether you are within a 4G Calling/VoLTE coverage area, using our 4G coverage map. The One NZ network is continuing to roll out VoLTE, so if you are not within coverage yet, keep checking.

2. Check with your device manufacturer whether your phone supports VoLTE. For iPhone users, that includes models from iPhone 6 and newer. For Android users, that includes phones like Galaxy S9 and newer.

3. You need to ensure your firmware is updated. If needed, you can prompt this update yourself.

4. You need to ensure VoLTE is enabled in your device settings.

Note: if you still can’t connect to VoLTE, try turning your phone on and off again near the mobile cell site.

Anywhere covered by 4G in our network coverage map.

For iPhone users, that includes models from iPhone 6 and newer.

For Android users, that includes phones like Galaxy S9 and newer.

If you’re unsure, check with your device’s manufacturer.

Since these are two very distinct technologies, your call will drop out when you move into the 4G only area. If you have VoLTE activated on your device and plan, you’ll be able to redial the number and continue your call.

Apple (iOS)

– Go to Settings
– Tap Mobile
– Tap Mobile Data Options
– Enable 4G Voice and Data

Huawei

– Go to Settings
– Tap Wireless and Networks
– Tap Mobile Networks
– Enable VoLTE calls

Samsung

– Go to Settings
– Tap Connections
– Tap Mobile Networks
– Enable VoLTE calls

Please note: Samsung and Huawei smartphones will have VoLTE turned on by default when you are in a 4G network area. At such times, you will not find a VoLTE toggle in the settings menu of your smartphone.

Android: You might see a VoLTE or HD symbol on the top of your device (next to the signal strength indicator) otherwise your device will stay on 4G during a call
iPhone: There is no VoLTE symbol so your phone will display 4G.

When you make a VoLTE call, it will use your plan’s minutes, not your data.

VoLTE currently only works in NZ, and we’re working in the background to enable VoLTE while using the Rocket Mobile $8/day roaming add-on. We’ll update this page when that’s available.

Only VoLTE compatible devices will be able to make and receive voice calls in an area that has 4G only and no 2G/3G coverage.

The coverage map can be used to find these locations.
https://rocketmobile.co.nz/network-coverage/

RCG (Rural Connectivity Group) is deploying 425 rural cell sites throughout New Zealand providing 4G only coverage. Most of these sites will be deeply rural and therefore may not have 2G/3G coverage. Some of these sites will get 3G in the future.
For more information go to thercg.co.nz

Yes, you can call 111 in an emergency using VoLTE, which means voice calls will work on our 4G and 5G networks if you’re in a coverage area. However, if your phone is not VoLTE compatible, and if you’re in an area that doesn’t have 3G coverage, then you won’t be able to make any voice calls including to emergency services.