What is VoLTE?

VoLTE, which stands for Voice over LTE (LTE refers to the technical name for 4G), represents the next step in mobile voice communication. Unlike traditional voice calls that have relied on the 3G network for over a decade, VoLTE enables voice calls to be made directly over the 4G network.

To use VoLTE, your phone must support it. Even if your device is 4G capable, it may still revert to 3G for calls unless it specifically supports VoLTE functionality. Without this support, the benefits of 4G for voice services can’t be fully utilized.

VoLTE Support for Megatel customers

Megatel mobile service operates within the Spark network coverage.

Mobile network operators like Spark have been partnering with phone manufacturers to enable VoLTE on a broad range of devices, including existing models, for use on New Zealand's 4G networks.

How do I change VoLTE setting in my mobile device?

It is likely that it's enabled by default for many devices that support VoLTE. However, you may need to manually configure it in your device.

For your iPhone device: Settings -> Mobile -> Mobile Data Options -> Voice and Data -> Tick either 5G or 4G and make sure that VoLTE is enabled.

For your Android device: Settings -> Connections -> Mobile networks -> Make sure that network mode is either 5G or 4G auto connect with VoLTE calls enabled

** If you cannot find the VoLTE option in your mobile setting, your device may not support VoLTE.

** If you are using dual SIM (for example, one eSIM and one physical SIM), ensure to choose the correct SIM for the VoLTE setting.

Using VoLTE while Roaming with Megatel (Spark mobile network)

As international mobile carriers begin phasing out the 2G and 3G networks (eg, all 3G networks in Australia have shutdown since October 2024), Spark is working to ensure that customers can still make calls while overseas. This involves enabling VoLTE roaming on popular mobile phone models and coordinating with global roaming partners to roll out VoLTE capabilities on their networks. Without a mobile device that supports VoLTE, you won't be able to use voice services while overseas roaming.

What do I do if my mobile device doesn't support VoLTE?

If your mobile device doesn't support VoLTE, you may still be able to use data and text but won't be able to make voice calls in areas where there is no 3G or 2G available, including to emergency service numbers. Spark is phasing out the 3G network and some rural areas only have 4G coverage.

Benefits of using VoLTE

Enhanced Coverage: Enjoy the ability to make calls over Spark’s 4G network, including access to newly expanded 4G-only areas delivered through the Rural Connectivity Group (RCG). To see if you're covered, visit spark.co.nz/4g.

Superior Call Quality: Experience crystal-clear voice calls that make it feel like you're speaking face-to-face, with reduced background noise for a more natural conversation.

Seamless 4G Multitasking: Stay connected without interruptions—use your apps, browse the web, and stream content at 4G speeds even while you’re on a call.

Quicker Call Setup: Get connected faster. VoLTE reduces call setup time, so your calls begin with minimal delay.

Clearer Speakerphone Experience: Hear every voice distinctly during speakerphone calls, making it easier to recognize who’s speaking—even in group conversations.

VoLTE FAQ

What's the coverage area of VoLTE? Am I covered?

Please check the Spark network's 4G coverage map here.

Can I use 3G for VoLTE?

No, since VoLTE is technically 4G, and Spark network is closing down 3G network across the country.

How do I know if I'm using VoLTE?

Please ensure that WiFi is turned off from your mobile device first. You will see "4G", "VoLTE icon" or "HD" in the status bar on your mobile screen.

I don't want to switch to VoLTE capable mobile device. 

You need to upgrade your mobile device to a VoLTE capable one since the 3G network is closing across the country.

Making an emergency call to 111 with VoLTE.

You can make an emergency call to 111 on a VoLTE capable mobile device when you are in the coverage area. However, if your mobile device does not support VoLTE and when you are in 4G only area, then you won't be able to make a call to emergency service to 111.

Does VoLTE use mobile data?

No, VoLTE calls do not use your mobile data.

** If you have more questions about using VoLTE, please send us a message through the secure message in MyMegatel app.