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Voice over LTE (VoLTE) FAQs

What’s VoLTE, and why is it so important?

VoLTE (Voice over LTE) lets you make clearer phone calls over the 4G (also known as LTE) network, where it's available.

VoLTE is kind of like an add-on to 4G technology. Some phones have it (either built-in, or as a feature you can enable), and others don’t. Phones that don’t have VoLTE rely on the 3G network for calls.

When Telstra closes its 3G network on 30 June 2024, phones that don’t have VoLTE – as well as 4G phones that don’t have VoLTE switched on – will be affected. We’ll get in touch with customers who have these phones and let them know what they need to do.

More about the 3G closure

Compatible devices

To use a Belong service, you’ll need a phone that supports VoLTE, and can connect to the Telstra network. This means 4G or 5G device that:

  • supports international band 28 (B28)/700MHz (Telstra’s main 4G frequency)

  • has VoLTE

  • supports VoLTE Emergency Calling

Below is a list of common devices that fit the bill, based on our testing. Just note we can’t guarantee compatibility – specs sometimes change from one device to the next, which can affect network requirements and VoLTE functionality.

Brand

Device name

Model number

Apple

iPhone 11

A2221

Apple

iPhone 12

A2403

Apple

iPhone 13

A2633

Apple

iPhone 14

A2882

Apple

iPhone 15

A390

Samsung

Galaxy A15 4G

SM-A145

Samsung

Galaxy A15 5G

SM-A156

Samsung

Galaxy Z Flip 5 5G

SM-F731

Samsung

Galaxy A35 5G

SM-A356

Samsung

Galaxy A55 5G

SM-A556

Samsung

Galaxy S10

SM-G973F

Samsung

Galaxy S20

SM-G980F

Samsung

Galaxy S21 5G

SM-G991B

Samsung

Galaxy S22

SM-S901E

Samsung

Galaxy S23/S23+

SM-S916

Samsung

Galaxy S23 FE

SM-S711

Samsung

Galaxy S24/S24+ (SLSI)

SM-S926

Samsung

Galaxy S24 Ultra (Qcom)

SM-S928

Last updated 26 April 2024

This list refers to phones released in Australia. Phones from overseas (even if they’re bought from Australian stores) are sometimes configured for overseas markets, which makes them incompatible with our network.

Software updates can also affect whether a device supports VoLTE.

If your device isn’t listed here (or if your device was bought overseas), check the manual or manufacturer’s website to see if the device fits the compatibility requirements listed above.

How do I turn on VoLTE?

For Apple devices

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 the prompts

Make sure you have the latest carrier build enabled:

  1. Go to ‘Settings

  2. Select ‘General

  3. Select ‘About

  4. Scroll to ‘Service Provider’. If an update is available, you'll see an option to update your Service Provider settings.

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 turned on within 4 hours of completing the above steps.

For Android devices

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

How to update your device

For Apple devices

  1. Go to ‘Settings

  2. Select ‘General

  3. Scroll to ‘Software Update’ and follow the prompts

It’s also worth turning on automatic updates. You can do that on the ‘Software Update’ screen.

For Android devices

  1. Open your device's ‘Settings’ app.

  2. Tap ‘System’ and then ‘System update’.

  3. Follow any prompts.

The exact steps can vary depending on who made your device. Check with your phone manufacturer if those steps don’t work for you.


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