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VoLTE & Wi-Fi Calling

VoLTE, Wi-Fi Calling &
SMS and MMS via 4G/WiFi

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VoLTE  I  Wi-Fi Calling  I SMS and MMS via 4G/WiFi

VoLTE
What is VoLTE?
Voice over LTE (VoLTE) is the next step in voice calling technology for mobile phones – enabling users to make calls over 4G on their mobile network. This means clearer calls and faster connection times.
What are the benefits of VoLTE?
Clearer calls - VoLTE gives clearer calls and reduced background noise.
Less waiting - VoLTE supports super quick call connection. The time between tapping to call and being connected will drop significantly.
More multitasking - Need to look something up while you’re on a call? VoLTE enables simultaneous calls and high speed 4G data connections so you can multitask more easily.
Which devices are compatible with VoLTE?
To access VoLTE, you will need a device that is VoLTE capable. You will need to turn 4G voice on in your device network settings to gain access to VoLTE. Note that some VoLTE capable devices may not be compatible with the VoLTE service provided by Telstra Wholesale. The list below is not comprehensive, please refer to your manufacturer if your device is not listed
  • Apple iPhone 6 onwards.
  • Samsung Galaxy S7 onwards, Note 5 onwards, A5 onwards.
  • Google Pixel 4 onwards.
  • LG G5 onwards.
Can I do conference calls with VoLTE?
Yes, with VoLTE you can make a conference call with up to five compatible devices.
Is there a fee to use VoLTE?
No. Call usage is the same as all other voice calls.
VoLTE International Roaming
VoLTE (calls via 4G) whilst you roam overseas is currently being rolled out to selected destinations and carriers. This means in eligible countries your voice calls will go via the 4G network. You don't need to do anything other than having a VoLTE compatible device.


As overseas carriers have slightly different network configurations, we cannot guarantee that a particular device will be VoLTE capable whilst roaming overseas. You can check if your device is VoLTE compatible by searching the specifications online or on the manufacturer's website. If you do not have a compatible VoLTE device but have an active International Roaming add-on, your mobile service should still work on 2G or 3G where available.

Wi-Fi Calling
What is Wi-Fi Calling?
Wi-Fi Calling allows you to make and receive phone calls over a suitable Wi-Fi connection. To use Wi-Fi Calling, you’ll need a 4G enabled mobile phone which is Wi-Fi Calling capable and a suitable Wi-Fi network.
Wi-Fi Calling is useful when you have access to a suitable Wi-Fi connection and you:
  • Want to extend coverage while indoors; or
  • Are travelling overseas and want to call back to Australia.
  • Need to stay connected if there’s a mobile network outage.
What can I expect from Wi-Fi Calling?
If you have a compatible device it will be possible to make calls even if you don’t have a mobile signal, provided you are connected to a suitable Wi-Fi connection. If you are abroad, you can also make calls back to Australia using a compatible Wi-Fi connection.
Will I be able to make calls in areas with no mobile coverage?
If you have a suitable Wi-Fi connection, you will be able to make Wi-Fi calls in your home even in areas with no mobile coverage.
What do I need to do to use Wi-Fi calling?
Don't worry about downloading apps, just make sure your phone is connected to Wi-Fi then simply dial as normal.
How will Wi-Fi calls be charged?
  • Domestic Wi-Fi calls will be charged and shown as a Standard National domestic voice call.
  • Outbound International Wi-Fi calls made from Australia will be charged and shown as a Standard International Direct Dialling (IDD) call.
  • International Wi-Fi calls from an overseas destination back to Australia will be charged and shown as a Standard National domestic call.
Can I make a Wi-Fi voice call from overseas?
Yes, but only Wi-Fi voice calls from overseas back to Australia will be permitted. These calls will be charged at the Australian Domestic rate.
How does Wi-Fi calling work?
Your phone will default to Wi-Fi Calling while connected to a suitable Wi-Fi connection. You will only have access to Wi-Fi Calling as part of your voice service if you have a Wi-Fi Calling compatible device and you are using a suitable Wi-Fi service.
Will Emergency 000 calls as usual?
000 calls are supported on Wi-Fi Calling, however other emergency call fail-safes still apply.
Is Wi-Fi calling secure?
Yes, your smartphone or tablet must still authenticate with the mobile network. So, Wi-Fi voice calls are protected by the same secure industry standards as other mobile calls.
Does Voicemail work using Wi-Fi calling?
Yes, your calling features such as Voicemail, call waiting or call conference will still work as normal on Wi-Fi calling.
Can I change my call forwarding settings when I'm on a Wi-Fi call?
No. Currently Wi-Fi Calling can only forward calls based on your existing settings. To change your call forwarding settings, connect to the mobile network.
What happens if I move out of Wi-Fi coverage while on a call?
If you're on the 4G network, your call will seamlessly move between the Wi-Fi and 4G. If there's no mobile connection available, then your call will drop out when you leave Wi-Fi coverage.
Why is my Wi-Fi calling not working?
If you have a compatible device but are still unable to use Wi-Fi calling it might be due to:
  • The Wi-Fi you are connected to does not support Wi-Fi Calling.
  • Not activating Wi-Fi Calling via your device settings.
  • Your device needing a software update.
  • Having sufficient 4G/5G coverage as this will take priority over Wi-Fi.
How to fix Wi-Fi Calling?
Here are some steps to follow if you have a problem with Wi-Fi Calling:
  • Restart your Wi-Fi Router and Phone/Device.
  • Toggle Aeroplane Mode On and Off.
  • Remove and re-insert your SIM Card.
  • Try a different Wi-Fi Network.
  • Reset Network Settings.

SMS and MMS via 4G/WiFi

(Also known as SMSoIP and MMSoIP)
As of 19th March 2024, we've now enabled SMS over 4G, SMS over Wi-Fi and MMS over 4G for all customers.
MMS over Wi-Fi is not currently available and will be rolled out separately with the target of being completed by the end of May 2024.
What is SMS and MMS via 4G/WiFi?
SMS and MMS via 4G/WiFi is sending/receiving of SMS and MMS messages over 4G and compatible Wi-Fi networks.
What are the benefits for SMS and MMS via 4G/WiFi?
SMS and MMS via 4G/WiFi will allow SMS/MMS messages to be sent over the 4G / 5G network, this is especially important as the 3G network will be shut down on 30th June 2024.

You will be able to send SMS/MMS over compatible Wi-Fi networks independently of mobilenetwork coverage. This potentially allows you to still be able to send and receive SMS messages in areas whereyou cannot connect to our mobile network but are able to connect to a compatible Wi-Fi connection.
What devices support SMS and MMS via 4G/WiFi?
Most smartphones should be able to support SMS and MMS via 4G/WiFi. If the device supports VoLTE, it should be able to support SMS and MMS via 4G/WiFi. Please refer to the manufacturer's website of your device.
How does SMS/MMS over Wi-Fi work?
SMS/MMS over Wi-Fi lets you send and receive SMS/MMS on compatible devices whenthey’re connected to a compatible Wi-Fi network. Instead of sending the SMS/MMS via your plan included data, modern smartphones can use the connectivity enabled by Wi-Fi networks to send or receive the message. Sending SMS/MMS over Wi-Fi connection is ideal when you can’tconnect to the mobile network to send or receive SMS /MMS messages.
What do I need to do to use SMS and MMS via WiFi?
If you are already using Wi-Fi Calling, you just need to make sure your device is also compatible with SMS/MMS over Wi-Fi and has the latest software version installed. There’s no need to change any other settings on your device.

To be able to use SMS/MMS over Wi-Fi, you need to:
  • Have a compatible device which supports SMSoIP/MMSoIP
  • Have VoLTE (4G voice) enabled on your device
  • Have VoLTE (4G voice) enabled on your service
  • Have updated to the latest device OS software
  • Turn on Wi-Fi calling on your device
  • Have a compatible Wi-Fi connection
Will I be able to access SMS/MMS over Wi-Fi overseas?
If you are roaming overseas you will be able to send and receive SMS/MMS over Wi-Fi back to andfrom any mobile number. You do not need to have an International Roaming add-on applied to your service to use SMS/MMS over Wi-Fi.

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~ Sign up to a new $40, $50, $60 Everyday Mobile from Woolworths SIM Only Plan between 9 August 2023 00:01 AEST and 30 June 2024 23:59 AEST and link your active Everyday Rewards card during the checkout process to receive 10% off plan monthly price every month as long as you stay active on the plan and have an active Everyday Rewards card. Offer not available to existing customers who change to a SIM Only Plan. Not available in conjunction with any other offer. Everyday Mobile from Woolworths reserves the right to amend the offer at any time without notice. Everyday Rewards Terms and Conditions apply.

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e Promotional period runs from 00:01 (local time) 9 August 2023 until 23:59 (local time) 30 June 2024 on Everyday Mobile from Woolworths $25, $30, $35, $100, and $170 Starter packs only. Excludes ongoing recharges. Offer is available for purchase in store at Woolworths Supermarkets only. Cannot be used online. Offer cannot be used in conjunction with any other offer unless otherwise specified. You do not need to boost this offer. To collect Bonus 500 points on $25, 1000 points on $30 and $100, 2000 points on $35 and $170 Everyday Mobile from Woolworths starter pack, purchase relevant starter pack and scan your active Everyday Rewards Card before completing your transaction. You will not collect any standard Everyday Rewards points on the amount you spend on the Everyday Mobile starter packs, and will only collect the relevant number of bonus points for which you qualify under this offer. Bonus points can take up to 14 business days to be loaded onto your Everyday Rewards Card from date of purchase. The promotional period for in store transactions is based on the local time of the store you shop at in store. Limit of 5 starter packs per transaction and one transaction per day per Everyday Rewards Member. While stocks last. In addition to the above terms and conditions, by participating in the Everyday Rewards program you agree to the Everyday Rewards Terms and Conditions. You may not collect points if collecting those points would cause you to exceed 4,000 Everyday Rewards dollars as set out in those Terms and Conditions.

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† Woolworths Group Limited ABN 88 000 014 675 uses parts of Telstra’s 5G, 4G and 3G mobile networks. The service provides 5G Coverage reaching at least 75% of the Australian population. The Telstra Wholesale mobile coverage area footprint reaches more than 98.8% of the Australian population and covers more than 1.6 million square kilometres of the Australian landmass. Telstra’s 3G Network (850Mhz band) will close on 30 June 2024.

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