The shutdown of Australia's remaining 3G mobile networks began 28 October 2024. 

Key dates for the Telstra Wholesale Mobile Network:

• 28 October 2024: Shutdown and device blocking commences
• 30 October 2024: Tasmania completion
• 4 November 2024: National completion

What this means for you:

1. From 28 October, devices that only use 3G or can't make VoLTE calls began losing service or were blocked
2. All 3G services were progressively shut down across the country
3. By 4 November, no 3G services were available nationwide

Important actions:

• Check your device is 4G VoLTE compatible
• Ensure your device can make emergency calls over 4G
• Update your device, if needed
• Test '3G' to 3498 if unsure about compatibility

The Telstra Wholesale Mobile Network, utilised by ALDImobile, phased out its 3G services from 28 October 2024.

This step was taken to reallocate resources to the more advanced 4G and 5G networks, which provide faster and more efficient services. The shutdown of 3G is part of an industry-wide transition by all network providers across Australia and globally towards newer, more efficient technologies.

If you have received a notification from us including the reference that "recent activity indicates use of a device that will be impacted", it is likely that you need to upgrade to a compatible device to continue using our services.

Please note that email notifications were sent to the account-holder, and the affected device could be any, some, or all of the devices connected to an account.

If you have multiple services it is important to check the specifications on each device to ensure that they support 4G for data and VoLTE for calls, and are compatible with the 4G and/or 5G bands that ALDImobile operates upon.

Device impacts from 28 October 2024
The Australian Communications and Media Authority confirmed specific requirements for mobile devices after the 3G shutdown. As a result, devices have been blocked from the network if they are:

• 3G-only
• Are a 4G phone without VoLTE capability
• Use 3G for emergency calls even if they have 4G

Different devices, different impacts:

Mobile phones:

• Must support 4G VoLTE for all calls, including emergency services
• Require correct software version and settings
• Have been blocked if they don't meet these requirements

Non-calling devices (IoT, M2M, tablets, etc):

• 3G-only devices lose network access
• 4G devices without VoLTE can continue accessing data
• Must be compatible with current network bands
• No emergency calling requirements if not phone capable

Checking your device compatibility
If you've received a notification about device compatibility:

1. Text '3G' to 3498 for an immediate device check
2. To validate whether a device has been blocked visit the Telstra Wholesale blocked device checker and enter your device IMEI 
3. Verify for each device on your account
4. Check specifications for:
   • 4G VoLTE capability
   • Emergency calling over 4G
   • Network band compatibility (especially Band 28)
   • Software/settings requirements

Multiple service considerations:

• Check each device individually
• Don't assume all devices on your account are affected
• Verify specifications even if you haven't received a notification
• Consider both calling and non-calling devices

Required actions:

1. For incompatible phones:
   • Replace with a 4G VoLTE capable device, or
   • Update software/settings if device supports VoLTE
2. For 3G non-calling devices:
   • Upgrade to 4G compatible versions
   • Ensure network band compatibility

Timing:

• 3G shutdown and device blocking began on 28 October 2024

The shutdown date was aligned with regulatory requirements and network planning. To maintain uninterrupted service, ensure all your devices meet new network requirements.

Existing ALDImobile SIM cards are compatible with 4G and 5G mobile devices.

However, it is important to check the size of the SIM card required for your new device. Our SIM cards are “3 in 1” which means they have a standard SIM, a micro SIM and a nano SIM all in the one card. You simply add or remove the insert frame to match the size that fits your device. 

If your new device requires a different SIM card size than your current one, you may need to add or remove inserts. Newer devices typically require smaller SIMs so it is most likely that you will need to remove rather than add an insert to fit a newer device.

You may hear a Recorded Voice Announcement (RVA) when making outgoing calls, along the lines of:

RVA message until 28 October 2024:
"When the 3G network closes it's likely this phone won't be able to make calls, including emergency calls. Contact your service provider for details."

Updated RVA message from 28 October 2024:
"Your device may have reduced network connectivity and will not always be able to call triple zero. For your safety, upgrade to a compatible device now. Contact your service provider."

Why am I hearing this?

• Your device has been identified as potentially impacted by the 3G shutdown or 700MHz 4G compatibility
• The announcement serves as a reminder to upgrade your device
• It will continue until network data shows a compatible device in use
• Important: You cannot opt out of these announcements while using an affected device

Impact after network changes
Affected devices may lose the ability to:

• Make regular calls, send/receive texts or access mobile data
• Make emergency calls to 000
• Maintain reliable network connectivity (for 700MHz incompatible devices)

Testing your device
DO NOT:

• Call 000 to test compatibility
• Assume your device will continue working completely

DO:

• Use the SMS Device Checker tool
• Text '3G' to 3498 for guidance
• Check if you need software updates or hardware upgrade

After updating your device
Network data updates:

• May take up to 24 hours to reflect changes
• RVA messages will continue during this period
• Use SMS tool to confirm update status

Checking network data updates:

• Text '3G' to 3498
• Review the returned device information
• If showing new device: Data is current
• If showing old device: Wait for update
• Check regularly until new device appears

Still receiving RVA after device change?
If you have a new device but still hear the RVA and the SMS tool shows your new device, it may be incompatible with either 3G shutdown requirements or the 700MHz 4G network. Follow the SMS tool's advice for ensuring ongoing compatibility.

Check your device now
Text '3G' to 3498 to quickly check if your device was affected by the 3G network shutdown on 28 October 2024.

Important update
Due to new ACMA regulations, devices that cannot make emergency calls over 4G VoLTE have been blocked from the network from 28 October 2024.

This includes:

• 3G-only devices
• 4G phones without VoLTE
• Devices that use 3G for emergency calls

How it works
The tool analyses recent network data to identify your current device and verify its compatibility. You'll receive one of these responses:

Possible responses

1. No upgrade needed
   "Good news – your device will work as normal after the 3G closure on 28 October 2024, so you don't have to do anything."

2. 3G - Blocked
   "This phone won't work for calls, Emergency 000 calls, texts or data when 3G closes, and will be blocked from accessing the network on 28 October 2024. Upgrade to a compatible 4G/5G device to stay connected."

3. Non-VoLTE - Blocked
   "This phone won't be able to make calls or Emergency 000 calls when 3G closes, and will be blocked from 28 October 2024. Upgrade to a compatible 4G/5G device to stay connected."

4. Update needed - Software update
   "This phone is using 3G to make calls and Emergency 000 calls, so you'll need to enable 4G calling before 28 October to stay connected. To do this, turn on VoLTE in your phone's settings and update your phone software to the latest version."

5. Band 28 - Upgrade recommended
   "This phone can't connect to Telstra's main 4G frequency (700MHz), so you might have patchy/limited service in some places when 3G closes from 28 October 2024 (including for emergency 000 calls). Switch to a compatible 4G/5G device to keep getting the coverage you're used to."

6. International model
   "This phone is an international model and can't connect to the mobile network's main 4G frequency (B28/700MHz), so you might have limited/patchy coverage after 28 October 2024, including for Emergency 000 calls. For more reliable coverage after the closure, upgrade to a compatible device."

7. E000 - Blocked
   "This phone won't be able to make Emergency 000 calls when 3G closes, and will be blocked from 28 October 2024. Upgrade to a compatible 4G/5G device to stay connected."

8. Non calling devices
   "Looks like you texted from something other than a mobile phone. You'll need to check with the manufacturer if your device will still work when 3G closes from 28 October 2024 as it might not be able to make Emergency 000 calls over 4G."

9. System unavailable
   "The 3G Checker is currently unavailable. Please try again later."

Recently changed devices
If you've upgraded your phone, the tool may initially show your previous device information. Allow 24 hours for data refresh and check again after this period.

Network compatibility
This service is exclusively for ALDImobile customers. Users on other networks should contact their provider for compatibility checking. Always verify device specifications with the manufacturer.

Take action now
3G shutdown has already begun. Act now to avoid service interruption and ensure continued access to emergency services.

Important update
Following new ACMA regulations, devices that cannot make emergency calls over 4G VoLTE were blocked from the network from 28 October 2024.

Affected devices
The following devices lost  network access:

• 3G-only phones
• 4G phones without VoLTE capability
• Phones that use 3G for emergency calls
• Devices with limited 4G band support

Checking your device compatibility

1. Use our SMS checker tool
   Text '3G' to 3498 for an immediate assessment based on your device's recent network usage. This will confirm if you need a hardware upgrade or software update.

2. Check device specifications
   Visit your manufacturer's website or documentation to verify:

• VoLTE (Voice over LTE) support
• Emergency calling over 4G
• Compatible network bands

3. Verify network band support
   Your device must support some of ALDImobile's 4G bands, particularly Band 28. These are:

• 700MHz (Band 28)
• 1800MHz (Band 3)
• 2100MHz (Band 1)
• 2600MHz (Band 7)

• For VoLTE-capable phones:
• Ensure VoLTE is enabled in your phone settings
• Keep your device's software up to date
• Configure emergency calling settings if required

Taking action
If your device is incompatible:

1. Upgrade to a 4G VoLTE-capable phone
2. Ensure the new device supports emergency calling over 4G
3. Verify all required network bands are supported

Remember: After the shutdown date, incompatible devices were blocked from the network. This is to ensure all connected devices can make emergency calls over 4G VoLTE.

Critical update: Following ACMA's Emergency Call Service Determination, devices that cannot make emergency calls over 4G VoLTE were blocked from accessing the network from 28 October 2024.

Affected devices

Mobile phones
Devices are blocked from the network if they:

• Are 3G-only
• Don't support VoLTE calling
• Make emergency calls over 3G

Devices with limited 4G band support may experience partial or full coverage gaps, depending on your location and the specific bands supported.

Other connected devices
Any device with a SIM card must be 4G compatible to continue working. This includes tablets, laptops, security cameras, monitoring devices, medical alarms, and IoT devices.

Network requirements
Calling devices must support VoLTE for all calls, including emergency calls. For optimal coverage, devices should be compatible with Telstra Wholesale network 4G bands: 700MHz (B28, most important), 1800MHz (B3), 2100MHz (B1), and 2600MHz (B7).

Checking your device

Quick check
Text '3G' to 3498 from your device. You'll receive current device information, network capability status, and any required upgrade information.

Detailed verification
Search your device specifications online to check VoLTE and 4G band support. Verify the software version requirements and ensure emergency calling capability over 4G is supported.

Software considerations
Even compatible devices may need software updates or configuration changes. This includes network settings updates, VoLTE activation, and emergency calling setup. Check your device settings and install any available updates.

Important: The 3G shutdown has already completed. Check your device now to avoid service interruption.

To prepare for the 3G network shutdown, your device will need to support 4G or 5G, and VoLTE (Voice over LTE/HD calling/4G voice) for uninterrupted data and voice services.

Note that some 4G devices lack VoLTE, limiting voice calls over 4G networks and are known as 4G non-VoLTE. Also, most 5G phones support 4G VoLTE, due to backward compatibility.

To determine whether your current device is 3G, 4G non-VoLTE, 4G VoLTE or 5G you can check;

1. Manufacturer information:
   • Contact your mobile device manufacturer for information about the network capabilities of your device.
2. Device specifications:
   • Search for your phone model online to find its specifications on the manufacturer's website or on trusted tech review sites.
   • Look for terms like "3G", "4G LTE", "VoLTE" or "5G" in the network specifications.
   • If you see "5G", "VoLTE" or a similar indication, your phone is likely using Voice over LTE.
3. Device settings:
   • For Android: Go to 'Settings' > 'About phone' > 'Network' or 'Status'.
   • For iOS: Go to 'Settings' > 'General' > 'About'.
4. Network indicators:
   • Check the network indicator on your phone’s status bar for icons like "3G", "4G" or "LTE".
   • If you see "5G", "VoLTE" or a similar indication, your phone is likely using Voice over LTE.
5. Test VoLTE features:
   • Make a call and see if you can use data services with 4G or 5G during the call to determine if your phone supports VoLTE.
   • If you can use 4G or 5G data while on a call, your device is likely to be using VoLTE, as non-VoLTE phones switch to 3G and cannot sustain high-speed data while on a call.

Remember, you'll need a 4G VoLTE or 5G device to continue using both voice and data once 3G network services are switched off.

To find out what device you have, follow these steps:

1. Check the device itself: Look for the model name printed on the back or front, or displayed during start-up.
2. Device settings:
   • For Android: Go to 'Settings' > 'About Phone' or 'About Device' for device name, model number, and manufacturer.
   • For iOS: Go to 'Settings' > 'General' > 'About' for model name and number.
3. Use the IMEI number: Dial *#06# for the IMEI and use an online IMEI checker to lookup your device details.
4. Original packaging: Check the phone’s original packaging for model and manufacturer information.
5. Device documentation: Refer to the user manual or documentation for model details.
6. Check with the retailer: Contact the retailer (or check their receipts or order confirmations) for device information, based on purchase history.

These methods can help in identifying your mobile device. If uncertain, search online with any known features or specifications to see if you can find a match.

An IMEI (International Mobile Equipment Identity) is a unique 15-digit number that identifies individual mobile devices. It acts like a serial number for your phone and is used to verify and distinguish devices.

How to find your IMEI number:

1. Dial a Code: Dial *#06# on your phone.
   The IMEI number should automatically appear on the screen.
2. Device settings:
   • For Android: Go to 'Settings' > 'About Phone' > 'Status' > 'IMEI Information'.
   • For iOS: Go to 'Settings' > 'General' > 'About', and scroll down to find the IMEI.
3. Physical check: The IMEI is often printed on the back of the device, under the battery compartment, or on the SIM tray.
4. Device packaging: The IMEI number is usually also printed on the phone's original packaging box.

Critical impact
From 28 October 2024, all 3G-only devices were blocked from the network. This means:

These devices lost all connectivity:

• No calls (including emergency 000 calls)
• No text messages
• No mobile data
• No network access of any kind

Why this happens
3G-only devices cannot connect to 4G or 5G networks. When 3G was switched off, these devices have no network to connect to. This affects all 3G-only devices, including:

• Mobile phones
• Sensors and trackers
• Connected laptops
• IoT devices
• Security systems

Checking your device

Mobile phones
Text '3G' to 3498 for an assessment of your device's capability.

Device settings check:

• Android: Settings > Network & Internet > Mobile Network
• iPhone: Settings > Mobile Data > Mobile Data Options
• Other devices: Check manufacturer documentation

Required action
You must upgrade to a compatible device to continue using it with your service. Your new device should have:

Essential features:

• 4G for data
• VoLTE capability, if a calling device
• Emergency calling over 4G VoLTE, if a calling device
• Compatibility with ALDImobile network bands

For non-phone devices:
Contact the manufacturer for a 4G-compatible replacement or alternative solution.

Getting help
For specific recommendations, visit your local phone retailer for compatible devices.

VoLTE enables compatible handsets to make voice calls via the 4G network. VoLTE was out along-side WiFi Calling and has been available to all services since December 2022.

What is VoLTE?

• VoLTE (Voice over LTE) allows you to make voice calls via the 4G network. 
• Prior to VoLTE, voice calls could only take place on the 3G network.

What are the benefits?

VoLTE is the next step in voice calling technology, so there are many benefits, including:

• Clearer calls with reduced background noise
• Faster call connections
• Reduced dependency on the 3G network for making and receiving calls

How do I start using VoLTE?

To begin using VoLTE you will need a device which is compatible with the network and is VoLTE capable.

To check if your handset is compatible, there are a few things you can do:

1. Visit your handset manufacturer's website and check the network specs for your specific handset.

2. Ensure your handsets software is up to date and update if necessary.

3. Check your handset's mobile network settings. Different manufacturers put mobile network settings in different places, so visit your handset manufacturer's website for specific details on how you can enable VoLTE from handset, provided that it is compatible.

How am I charged if I use VoLTE?

• VoLTE calls are included as part of the call inclusions for Mobile Plan customers, and are charged at the standard call rate for PAYG customers.
• VoLTE calls will not consume any of your mobile data.

Can I still call 000 on VoLTE?

Yes, calls to 000 will function as normal.

Important update: Following ACMA regulations, 4G phones without VoLTE capability were blocked from the network after 28 October 2024, as they are unable to make emergency calls over 4G.

Understanding 4G non-VoLTE

For mobile phones
A 4G non-VoLTE phone can connect to 4G networks for data services, providing fast internet speeds for downloads and streaming. However, these devices cannot make voice calls over 4G and must switch to 3G for any voice calls, including emergency calls.

Because these phones rely on 3G for voice calls and cannot make emergency calls over 4G, they were blocked from the network after the 3G shutdown.

For non-calling devices
Many devices like tablets, IoT sensors, or data modems are designed for data-only use and don't include voice calling capabilities. These devices don't require VoLTE support, and if they're 4G capable, will continue working normally after the 3G shutdown.

Impact after 3G shutdown

Mobile phones
4G non-VoLTE phones will be blocked from the network completely. This is because they cannot make emergency calls over 4G, which is now a regulatory requirement. These devices must be replaced, regardless of their data capabilities.

Data-only devices
If your device only uses data and doesn't make calls (like a tablet or IoT sensor), it will continue working normally as long as it supports 4G. These devices aren't affected by the VoLTE requirement since they don't make calls.

Required action

For phones:
You must upgrade to a device that supports 4G VoLTE and can make emergency calls over 4G. Ensure any new device is compatible with current network bands.

For data-only devices:
No action is needed if your device supports 4G. Only devices that are 3G-only need to be upgraded.

Check your device by texting '3G' to 3498 for specific guidance on upgrading requirements.

WiFi Calling will enable compatible handsets to make voice calls via WiFi connection.

WiFi Calling is currently being being rolled out along-side VoLTE and will be made available to all services by the end of December 2022.

What is WiFi Calling?

WiFi Calling (sometimes referred to as VoWiFi or Voice over WiFi) will allow you to make voice calls over a compatible WiFi connection.

If your connected to a compatible WiFi Connection, and WiFi Calling is enabled on your handset, your voice calls will begin going via WiFi by default.

What are the benefits?

WiFi Calling is the next step in voice calling technology, so there are many benefits, including:

• Clearer calls with reduced background noise

• Faster call connections

• Reduced dependency on the 3G and 4G networks for making and receiving calls

How do I start using WiFi Calling?

To begin using WiFi Calling you will need a device which is WiFi Calling capable.

To check if your handset is compatible, there are a few things you can do:

1. Visit your handset manufacturer's website and check the tech specs for your specific handset.

2. Ensure your handsets software is up to date and update if necessary.

3. Check your handset's mobile network settings. Different manufacturers put mobile network settings in different places, so visit your handset manufacturer's website for specific details.

How am I charged if I use WiFi Calling?

WiFi Calling is included as part of the call inclusions for Mobile Plan customers and are charged at the standard call rate for PAYG customers.

Calls made using WiFi Calling will consume a small amount of data (approx. 100-120kbps of bandwidth). 

Any data consumed as a result of WiFi Calling will come out of the data allowance of the WiFi network that you are using.

Is WiFi Calling secure?

Yes, calls made over WiFi are protected by the same secure industry standards as other mobile calls.

Can I still call 000 using WiFi Calling?

Yes, calls to 000 will function as normal.

Can I SMS over WiFi?

No, only voice calls are included as part of WiFi Calling.

Can I use WiFi Calling on any WiFi connection?

The ability to make voice calls over WiFi is something that the owner of the WiFi network controls.

If you are ever unable to use WiFi Calling, and your handset is compatible and capable, then it is likely that the owner of the WiFi network that you're connected to is not allowing WiFi Calling to be done on their network.

Can I use WiFi Calling when I’m overseas?

As long as you’re connected to a compatible WiFi network overseas, you will be able to make and receive voice calls at your standard rate; as if you were still in Australia.

Be careful, though. If you lose connection to the WiFi network whilst on a call your handset may automatically connect to the local mobile network and you will begin being charged at standard international roaming rates.

WiFi-SMS and WiFi-MMS, also known as SMSoIP (SMS over Internet Protocol) and MMSoIP (MMS over Internet Protocol), allow you to send and receive text and multimedia messages over WiFi instead of the mobile network. This enhancement is crucial as we moved away from 3G networks on 28 October 2024.

How to use WiFi-SMS

To use WiFi-SMS, you need:

• A compatible VoLTE/4G Voice smartphone
• Latest software updates installed
• WiFi Calling enabled
• Connected to a compatible WiFi network

Enabling WiFi-SMS

For iPhones:

1. Go to Settings > Mobile > WiFi Calling and turn it on.
2. Go to Settings > Messages, turn iMessage off and back on.

For Android:

1. Open the Phone app and go to Settings.
2. Turn on WiFi Calling.

Benefits of WiFi-SMS

• Send/receive texts over WiFi without mobile signal.
• Avoid SMS charges when travelling and using WiFi.
• Keep messaging after the 3G shutdown in 2024.

Charges

When using WiFi-SMS, you're charged standard rates based on the number, not roaming rates. So even overseas (when using WiFi-SMS only), texts to Australian numbers are charged at local rates.

Please note that while minimal, broadband usage for this service will count towards your data allowance.

Compatible Devices

Most recent smartphones with VoLTE support (required for post 3G-shutdown) should work with WiFi-SMS. Check your device specs for clarification.

WiFi-SMS FAQs

Does it cost extra?

• No, it's included in your mobile plan but the data usage for this service will count towards the data allowance of the broadband connection in use.

Is it secure?

• Yes, calls/texts use the same secure standards as the mobile network.

Does it use mobile data?

• No, it uses your broadband/WiFi data instead of mobile data.

Can I make emergency calls on WiFi overseas?

• No, emergency calls require the mobile network when overseas.

Will I be able to access SMS/MMS over WiFi overseas?

• If you are roaming overseas, you will be able to send and receive SMS/MMS over WiFi back to and from any mobile number.

What devices support SMSoIP and MMSoIP?

• Most recent smartphones with VoLTE support should work with SMSoIP and MMSoIP.
• Check your device specs on the manufacturer’s website for clarification.

Important: Having 4G capability alone isn't enough to ensure your device will work after 3G shutdown commenced on 28 October 2024.

Why you received a notification
If we've contacted you about the 3G closure notifying you about an impacted device, our network data likely indicates that a device on your account either:

• Lacks VoLTE (HD calling) capability
• Currently makes emergency calls over 3G
• Needs software updates to enable VoLTE

Understanding VoLTE requirements
A 4G device must have VoLTE (Voice over LTE or HD calling) capability to make calls after the shutdown. Without VoLTE, mobile phones are blocked from the network, even if it can connect to 4G for data.

For calling devices (phones)
Your device needs:

• 4G or 5G data capability
• VoLTE support for voice calls
• Ability to make emergency calls over 4G

For non-calling devices
If your device only uses data (like tablets, dongles or IoT devices), it only needs 4G capability to continue working after the shutdown. VoLTE isn't required for devices that don't make calls.

Checking your device
Text '3G' to 3498 to check if your device needs:

• A hardware upgrade
• Software updates
• Settings changes

This will help you understand exactly what action you need to take after the shut down date.

ALDImobile utilises the Telstra Wholesale Mobile Network to reach more than 98.8% of the Australian population with 4G or 5G and covers more than 1.6 million square kilometres of the Australian landmass. The service provides 4G coverage reaching at least 98.7% of the Australian population and at least 75% with 5G.

To fully leverage the capabilities of the Telstra Wholesale network, it's important to have a device that supports the bands in use within the intended usage area:

Required bands:

4G Network (LTE):

• 700MHz (Band 28): Primary coverage band

5G Network (NR):

• 3.6GHz (Band n78): Primary 5G band

Additional capacity bands (varies by location):

• 1800MHz (Band 3)
• 2100MHz (Band 1)
• 2600MHz (Band 7)

• 850MHz (Band n5)
• 2.6GHz (Band n7)
• 26GHz (Band n258)

Note that not all frequencies and bands are active in every location. To determine which bands are active in a specific area, you can visit the Radio Frequency National Site Archive (RFNSA) and look up the supported frequencies at towers in your areas of interest.

If you have any further questions about our network, please see our coverage map.

Essential requirements
Your new device must support VoLTE for making calls, including emergency calls, over 4G. It should also be compatible with the Telstra Wholesale network's 4G bands for optimal coverage.

Network bands
For the best coverage, ensure your device supports these key 4G bands:

• 700MHz (B28), most important
• 1800MHz (B3)
• 2100MHz (B1)
• 2600MHz (B7)

Where to check
You can verify device compatibility through:

• Manufacturer's website
• Device specifications page
• Retailer during purchase
• Product manual

For phones
When buying a new phone, specifically confirm:

1. VoLTE/HD calling support
2. Emergency calling over 4G
3. Network band compatibility

For data-only devices
If your device doesn't make calls (like tablets or IoT devices), just ensure it supports 4G data on compatible network bands.

Need help?
Check or ask the retailer to confirm these specifications match those of compatible devices before purchase.

Mobile networks operate on specific frequencies called "bands". Each tower broadcasts signals on various bands, and your device must support at least one to connect. Different bands have unique characteristics affecting coverage, building penetration, and data capacity. 

Significance of Band 28

Band 28 (700 MHz) is crucial on the Telstra Wholesale network that ALDImobile uses because it has:

• Extended coverage: Provides better coverage in rural and remote areas.
• Building penetration: Improved indoor reception.
• Network efficiency: Key for balancing network load and performance.

Implications of limited 4G band support

1. Coverage issues:

   • Potential signal loss in areas where only unsupported bands are available.
   • Compromised indoor reception, especially in buildings with thick walls.

2. Reduced network performance:

   • Possible slower data speeds or less reliable connections.

3. Future-proofing concerns:

   • Critical as 3G networks were shut down from 28 October 2024).

Recommended actions

1. Check your device specifications:

   • Review your device's supported 4G bands in its manual or online specifications.

2. Use our coverage checker:

   • Review the coverage map on or website.

3. Consider an upgrade:

   • If experiencing consistent coverage issues, consider a device with wider 4G band support.

Network details

To fully leverage the Telstra Wholesale network capabilities, ensure your device supports the bands used in your area:

Required primary bands:

• 4G: 700MHz (Band 28) - Main coverage band
• 5G: 3.6GHz (Band n78) - Main 5G band

Additional capacity bands (availability varies by location):

• 4G: 1800MHz (Band 3), 2100MHz (Band 1), 2600MHz (Band 7)
• 5G: 850MHz (Band n5), 2.6GHz (Band n7), 26GHz (Band n258)

Note: Not all frequencies and bands are active in every location. For specific area information, consult the Radio Frequency National Site Archive (RFNSA).

For further details about our network coverage, please refer to our coverage map.

If your device is 4G and VoLTE capable including for emergency calls, but you've received a notification about the 3G network closure, it likely means your device needs a software or settings update to function correctly after the shutdown. 

To ensure seamless service, follow these steps:

1. Check for software updates: Go to your device settings and look for available software updates from the manufacturer. Install any pending updates.
2. Enable VoLTE: In your device settings, locate the option to enable "VoLTE" or "Voice over LTE" and turn it on. This allows voice calls over the 4G network.
3. Update network settings: Some devices may require updating network settings to connect to the new 4G-only network properly. Consult your device manufacturer's website or contact their support for specific instructions.
4. Restart your device: After applying updates and setting changes, restart your phone to ensure the new configurations take effect.

By taking these measures, you'll be able to continue using your 4G device for voice calls and data without interruption after the 3G shutdown.

To continue accessing the network and being able to make voice calls after 3G shut down on 28 October 2024, devices need to support VoLTE (Voice over LTE/4G voice calling/HD calls). Here are the steps to enable it:

1. Check for software updates

   First, ensure your device is running the latest software version from the manufacturer. Software updates often enable new features like VoLTE.

   Android:

   • Open Settings > System > Software update (path may vary)
   • Check for updates and install any available

   iPhone:

   • Go to Settings > General > Software Update

2. Enable VoLTE in settings

   Once updated, you'll need to turn on VoLTE in your mobile network settings. The path differs by manufacturer:

   Android:

   • Open Settings > Network & internet > Mobile network
   • Look for an option like "Enhanced 4G LTE Mode" or "VoLTE" and turn it on

   iPhone:

   • Go to Settings > Mobile Data > Mobile Data Options
   • Tap "Voice & Data" and select the VoLTE enabled option (e.g. 4G, VoLTE On)

   Samsung:

   • Tap Settings > Connections > Mobile networks
   • Toggle VoLTE calls

   Huawei:

   • Tap Settings > Wireless & Networks > Mobile Network
   • Toggle VoLTE calls

   OPPO:

   • Tap Settings > Dual SIM (or 'SIM card and mobile data' on single SIM models) & Cellular Network
   • Choose SIM 1 or SIM 2 (just SIM on single SIM phones)
   • Toggle VoLTE Calls

   Nokia:

   • Tap Settings > Network & Internet > Mobile Network > Advanced
   • Toggle Enhanced 4G LTE Mode

   Motorola:

   • Settings > Mobile network > Mobile data
   • Toggle VoLTE calls

3. Reboot your device

   After enabling VoLTE, restart your phone to ensure the new settings take effect.

If you don't see VoLTE options or have trouble, check your device manufacturer's support for model-specific instructions.

Enabling VoLTE will allow you to continue voice calling over 4G after the 3G shutdown, while also accessing data simultaneously, as long as your device supports it. If your device does not have VoLTE capability then it will need to be replaced in order to be able to continue using the service after 3G was switched off.

Important: Given 3G shut down on 28 October 2024, your device must support emergency calling over 4G VoLTE or it will have been blocked from the network. This capability is built into the device hardware - it cannot be enabled through settings if your device doesn't support it.

Device capability
VoLTE support is hardware-dependent. Your device either:

• Has VoLTE capability built-in, or
• Doesn't support VoLTE and needs replacement

Emergency calling requirement
The ability to make emergency calls over 4G VoLTE is:

• A physical hardware feature
• Cannot be added through settings
• Required to continue using the network after shutdown

Network activation
If your device supports VoLTE, it typically activates automatically once enabled at the network tower. Some devices may need:

• Settings adjustments
• Firmware or software updates
• A restart/power cycle

Device settings location

For iPhone:
Settings > Mobile Data > Mobile Data Options > Voice & Data > select 4G, VoLTE On

For Android:
Settings > Network & Internet > Mobile Network > Advanced > VoLTE
(Note: Menu locations may vary by manufacturer)

Compatibility check
To verify your device's VoLTE and emergency calling capability:

• Text '3G' to 3498
• Check manufacturer specifications
• Review device documentation

Remember: If your device doesn't support emergency calling over 4G VoLTE, no amount of settings changes will enable this feature - you'll need to upgrade to a compatible device to continue using after the 3G shutdown.

Critical update: Following ACMA regulations, devices that cannot make emergency calls over 4G VoLTE were blocked from the network from 28 October 2024.

Emergency calling capability
Most modern 4G VoLTE devices will continue making emergency calls after the shutdown. However, some older 4G devices are hardwired to use 3G specifically for emergency calls - this cannot be changed through settings or updates.

Impact on affected devices
If your mobile phone uses 3G for emergency calls:

• It was blocked from connecting to the network
• Cannot be modified to work after shutdown
• Must be replaced with a compatible device

This applies even if your device can make regular calls over 4G VoLTE.

Checking your device
Text '3G' to 3498 to verify your device's emergency calling capability. The tool will tell you if you need:

• A hardware upgrade (new device)
• Software updates (if applicable)

You can also validate whether a device has been blocked by visiting the Telstra Wholesale blocked device checker and entering your device IMEI. 

Important: Do not call 000 to test your device. This interferes with emergency services and won't confirm compatibility.

Required action
If your device cannot make emergency calls over 4G we strongly recommend upgrading to a newer, compatible device from a reputable seller in Australia and verify emergency calling capability before the shutdown. This will ensure you can continue making calls to 000 and other emergency services after the 3G network is decommissioned.

Remember: Emergency calling capability is built into the device hardware. If your device is incompatible, it must be replaced - no settings changes can fix this limitation.

Yes - you must upgrade your device. The ACMA's Emergency Call Service Determination requires all devices to make emergency calls over 4G VoLTE, or they will be blocked from the network.

Why immediate action is required
The situation changed from previous advice. It's no longer about losing parts of your service - devices that can't make emergency calls over 4G VoLTE will be blocked from connecting to the network entirely after the 3G shutdown. This means you'll have no calls (including emergency), no text messages, no data services, and no network access of any kind.

Is my device blocked?
To validate whether a device has been blocked visit the Telstra Wholesale blocked device checker and enter your device IMEI.

Network requirements
Your new device must support 4G VoLTE for regular calls and emergency calling over 4G. It should also be compatible with current network bands for optimal coverage. Without these capabilities, your device won't be allowed to connect to the network after the shutdown date.

Timing considerations
3G shutdown has already commenced. Upgrade now to ensure your new device is fully compatible and working correctly as you may have already been exposed to sudden loss of service if your device is impacted.

Choosing a new device
When selecting a replacement device, make sure it's purchased from a reputable Australian seller. This helps ensure the device:

• Supports emergency calling over 4G VoLTE
• Is compatible with Australian networks
• Meets all regulatory requirements

Need help?
Text '3G' to 3498 to confirm your current device status. This will give you specific advice on whether your current device is able to make calls to emergency services and whether a hardware upgrade is required.