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4G Calling
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What is 4G Calling?
With 4G Calling you stay on the 4G network when you make a call. So any apps you’re using stay connected to our 4G data network instead of dropping back to 3G or 2G.
Plus with 4G Calling, you’ll experience faster call setup and better call quality wherever 4G is available.
How do I activate 4G Calling?
To benefit from 4G Calling you will need to have compatible handset and tariff plan.Â
Currently the below phones support 4G calling. However we will be enabling more handsets to support 4G Calling over the coming months. So please keep an eye on our website for further updates.
- Google Pixel 4A/5 5G
- Huawei P20/P20 Lite/P20 Pro
- Huawei P30/P30 Lite/P30 Pro
- Huawei P40 Pro
- Huawei Mate 20 X/Mate 20 Pro
- Huawei PSmart 2019/PSmart Z
- Huawei Y6 2019
- iPhone SE/SE 2020
- iPhone 6/6 Plus/6s/6s Plus
- iPhone 7/7 Plus
- iPhone 8/8 Plus
- iPhone X/XS/XS Max/XR
- iPhone 11/11 Pro/11 Pro Max
- iPhone 12/12 Mini/12 Pro/12 Pro Max
- Nokia 8.3 5G
- Samsung A8 2018/A10/A21s/A40/A41/A51 5G
- Samsung A50/A51/A70/A71/A90
- Samsung J6+
- Samsung S8/S8+
- Samsung S9/S9+
- Samsung S20/S20 5G/S20+/S20 Ultra/S20 FE
- Samsung S10/S10e/S10+/S10 5G
- Samsung Note 8/Note 9/Note 10
- Sony Xperia 10ii
The following tariffs are enabled to support 4G Calling:
- RED Connect SIM Only 12 month
- RED SIM Only 30 day
- RED Connect Essentials
- RED Connect Essentials II
- RED Connect
- RED Connect Super
- RED Complete SIM Only
- RED Max SIM Only
- RED Standard
- RED Complete
- RED Max
- RED Unlimited SIM Only
- RED Unlimited Max SIM Only
- Unlimited Lite
- RED Unlimited
- RED Unlimited Max
If you have a compatible Android phone and tariff, there's no setup required, the feature will activate automatically wherever 4G is available.
If you have a compatible iPhone:
- Click on 'Settings'
- Then click 'Mobile Data', 'Mobile Data Options' then 'Voice & Data'
- Ensure the 'Voice & Data' setting is set to '4G, VoLTE On'
Note: When your account is enabled for 4G Calling, you will need to re-set supplementary services such as call diverts and call barring on your handset. For more information on how to set up these services click here.
Setup instructions for 4G Calling





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Wi-Fi Calling
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What is Wi-Fi Calling?
How do I start using Wi-Fi Calling?
There are just a few steps to check before you can start using Wi-Fi Calling. Take a look below.
Have you got a compatible phone?
You need to be using a handset that supports Wi-Fi Calling. This feature is currently available on the the below phones but we’ll be adding more handsets - keep an eye out here for updates.
- Google Pixel 4A/5 5G
- Huawei P20/P20 Lite/P20 Pro
- Huawei P30/P30 Lite/P30 Pro
- Huawei P40 Pro
- Huawei Mate 20 X/Mate 20 Pro
- Huawei PSmart 2019/PSmart Z
- Huawei Y6 2019
- iPhone SE/SE 2020
- iPhone 6/6 Plus/6s/6s Plus
- iPhone 7/7 Plus
- iPhone 8/8 Plus
- iPhone X/XS/XS Max/XR
- iPhone 11/11 Pro/11 Pro Max
- iPhone 12/12 Mini/12 Pro/12 Pro Max
- Nokia 8.3 5G
- Samsung A8 2018/A10/A21s/A40/A41/A51 5G
- Samsung A50/A51/A70/A71/A90
- Samsung J6+
- Samsung S8/S8+
- Samsung S9/S9+
- Samsung S20/S20 5G/S20+/S20 Ultra/S20 FE
- Samsung S10/S10e/S10+/S10 5G
- Samsung Note 8/Note 9/Note 10
- Sony Xperia 10ii
Is the Wi-Fi Calling feature switched on?
Your handset must be connected to Wi-Fi and you need to switch Wi-Fi Calling feature to the 'on'Â position in your phone settings. To do this, please follow the steps below:
- On your Home screen select the Phone app
- While on the Phone screen select the menu on the top right
- Next select the Settings option
- In Settings, scroll down to the Wi-Fi Calling option and click the toggle on the right
- On the Wi-Fi Calling pop up – select OK
- Wi-Fi Calling is now enabled
Once enabled, your phone will automatically connect to a Wi-Fi network and allow Wi-Fi Calling in conditions when your mobile signal may be not be strong enough.
Are you on an eligible tariff?
Wi-Fi Calling is available to consumer Bill pay customers who are on one of the eligible tariffs below:
- RED Connect SIM Only 12 month
- RED SIM Only 30 day
- RED Connect Essentials
- RED Connect Essentials II
- RED Connect
- RED Connect Super
- RED Complete SIM Only
- RED Max SIM Only
- RED Standard
- RED Complete
- RED Max
- RED Unlimited SIM Only
- RED Unlimited Max SIM Only
- Unlimited Lite
- RED Unlimited
- RED Unlimited Max
Note: When your account is enabled for Wi-Fi Calling, you will need to re-set supplementary services such as call diverts and call barring on your handset. For more information on how to set up these services click here.
Where can I use Wi-Fi Calling?
iOS setup instructions for Wi-Fi Calling





Android setup instructions for Wi-Fi Calling





How much does it cost to use Wi-Fi Calling?
What phones support Wi-Fi Calling?
Currently, only the below phones support Wi-Fi Calling. You'll need to ensure you have installed the latest firmware on your handset in order to see Wi-Fi Calling in your handset settings.
Additional phones will be enabled over the coming months and our website will be updated to include these handsets as soon as they are ready. Keep an eye out here for updates.
- Google Pixel 4A/5 5G
- Huawei P20/P20 Lite/P20 Pro
- Huawei P30/P30 Lite/P30 Pro
- Huawei P40 Pro
- Huawei Mate 20 X/Mate 20 Pro
- Huawei PSmart 2019/PSmart Z
- Huawei Y6 2019
- iPhone SE/SE 2020
- iPhone 6/6 Plus/6s/6s Plus
- iPhone 7/7 Plus
- iPhone 8/8 Plus
- iPhone X/XS/XS Max/XR
- iPhone 11/11 Pro/11 Pro Max
- iPhone 12/12 Mini/12 Pro/12 Pro Max
- Nokia 8.3 5G
- Samsung A8 2018/A10/A21s/A40/A41/A51 5G
- Samsung A50/A51/A70/A71/A90
- Samsung J6+
- Samsung S8/S8+
- Samsung S9/S9+
- Samsung S20/S20 5G/S20+/S20 Ultra/S20 FE
- Samsung S10/S10e/S10+/S10 5G
- Samsung Note 8/Note 9/Note 10
- Sony Xperia 10ii
Can I make inbound and outbound calls over Wi-Fi?
Can I use Wi-Fi Calling when roaming?
Is Wi-Fi Calling available to Pay as you go and Enterprise customers?
Can I send a text message over Wi-Fi?
How does WiFi calling work with Super WiFi?
Super WiFi is a smart WiFi extension solution that solves your in-home connectivity problems by delivering reliable WiFi coverage to every corner of the home.
Super WiFi provides WiFi coverage in every corner of the home and, as Super WiFi supports WiFi Calling, this means you can also make WiFi Calls in every corner of the home. ​
Together, Super WiFi and WiFi Calling provide an even better indoor voice experience.