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How to enable VoLTE.

How to change your VoLTE settings on your mobile phone?


What is VoLTE?

Voice over LTE (VoLTE) lets you make clearer phone calls over 4G (LTE) networks. Boost Mobile uses the full coverage of the Telstra mobile network. When Telstra closes the 3G network on 28th October 2024, VoLTE will be required to make calls (including emergency calls).
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IMPORTANT NOTE

Emergency calling

If your device doesn’t support VoLTE emergency calling, you will not be able to make an emergency call to 000 on the Telstra Mobile Network. You won’t be able to make voice calls or connect on our network if your device doesn’t have Voice over LTE (VoLTE) technology, even with 4G data.

Which devices are compatible?

To use VoLTE, you'll need a 4G device which is VoLTE-capable. It will also need to be compatible with the following technology and bands:

  • Required: 4G 700 MHz (B28), 
  • Optional: 4G 1800 MHz (B3) banding.

Most 4G and 5G phones manufactured and sold in Australia from January 2019 support VoLTE. However, there may be exceptions or specific models that don’t support it, so we recommend that you verify with the manufacturer or through technical specifications.  If you’re unsure or need technical support, refer to your user manual or contact us. 
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VoLTE International roaming?

Voice over LTE (VoLTE) lets you make phone calls on a 4G (LTE) network.

Telstra has arrangements for carrying voice calls with individual roaming partners in other countries. While traditionally relying on 2G and 3G networks, agreements have been expanded to enable VoLTE over 4G. In select regions, VoLTE on 4G is the sole option as roaming partners have phased out 2G and 3G networks.

This means it's important that you have a VoLTE roaming compatible device when using your phone overseas. The handsets that can be used for roaming using VoLTE can be different to devices that can be used for VoLTE calling in Australia. Most phones manufactured and sold in Australia from July 2022 support VoLTE roaming. However, there may be exceptions or specific models that don’t support it, so we recommend that you verify with the manufacturer or through technical specifications.

If you’re unsure or need technical support, refer to your user manual or contact us. 

International roaming is not available in all countries and destinations are subject to change. Check Boost Mobile international roaming destinations. In the listed destinations voice calls, SMS, MMS, and data services may not be available with all operators. The availability of voice calls, SMS, MMS, and data services are dependent on a number of factors including your destination, the participating operator in that destination and the device you use.

IMPORTANT NOTE:

Making emergency calls while overseas

In order to make an emergency call while overseas, it is important that your device also supports VoLTE Emergency Calls. If your device doesn't support VoLTE Emergency Calls, and there is no 3G network coverage available in your location in the country you’re using your device, you will not be able to make an emergency call, even though you may have 4G or 5G coverage. The devices below are VoLTE Emergency Call tested and capable devices that Telstra has launched prior to 1 July 2022. In addition, every handset/tablet that Telstra has launched since 1 July 2022 also supports VoLTE Emergency Calls.

How do I enable VoLTE on my mobile phone?

Check your mobile phone's operating system is updated to the latest iOS version.

  1. Go to Settings
  2. Select General
  3. Scroll to Software Update and follow prompts.

Ensure you have the latest carrier settings build enabled.

  1. Go to Settings
  2. Select General
  3. Select About
  4. Scroll to Service Provider, and check that it is at least Telstra 35.0. If an update is available, you'll see an option to update your Service Provider settings.

Ensure VoLTE is turned on. If you have a 4G iPhone:

  1. Go to Settings
  2. Select Mobile
  3. Select Mobile Data Options
  4. Select Enable 4G.
  5. Select Voice & Data
  6. If available, turn on VoLTE.

If you have a 5G iPhone, VoLTE is automatically enabled on your device.

VoLTE will typically be activated on your mobile phone within 4 hours of completing the above steps.

Ensure your mobile phone’s operating system is up to date. Once it’s up-to-date, VoLTE will typically be enabled on your device within 4 hours.

If you’re unsure or need technical support, refer to your user manual or contact us.