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Everything you need to know about current and future coverage

Network and service

3G, 4G, and 5G

How do I check if my device is 4G-VoLTE Compatible?

I can't afford to upgrade right now. What should I do?

I'm in a 3G-only area right now or have a 3G-only device, what should I do?

If I use my SIM in a broadband device, will the 3G switch off affect me?

Is 3G being switched off?

My current device is suitable for my accessibility needs. What should I do?

What is 4G calling or VoLTE? How do I get it?

3G switch-off and 4G calling

Can I use a personal hotspot on 5G?

How do I turn on 5G on my smartphone?

I no longer wish to use 5G. How do I go back to using 4G?

Is 5G more expensive or will it use more data?

How do I know if my device is 5G enabled?

What is 5G? How do I get it?

Being 5G ready

WiFi calling

Can I use WiFi calling if I’m abroad?

Can I use WiFi calling when connected to public hotspots?

What is WiFi calling? Does it cost extra?

What kind of WiFi quality do I need to use WiFi calling?

Will I be able to make emergency calls using WiFi calling?

About WiFi calling

How do I check if my device is compatible with WiFi calling?

How can I enable WiFi calling?

What should I do if my WiFi calling isn’t working?

Setting-up WiFi calling

Coverage and network

Do you do Data Shaping or Network Throttling

How do I manually select a network on my device?

What bandwidth and spectrum is available?

What mobile network speeds can I expect?

What Network Coverage do I have?

Network coverage and status

Can I use 4G or 5G on the London Underground?

Do I get free WiFi on the London Underground?

How do I connect/disconnect from the Underground free WiFi?

Which stations have free WiFi?

London underground

Can I opt out of Network Maintenance notifications?

How will I know about planned network disruptions?

Will I lose service during network maintenance?

Network disruptions

How do I turn Emergency Alerts on/off?

What are UK Emergency alerts?

What’s the 999 BSL or Emergency Video Relay Service (EVRS)? How do they work?

UK emergency alerts

Data, calls & texts

Can I tether whilst roaming?

Can I tether/hotspot from my phone?

Does iCloud Private Relay work with my data?

How do I access my voicemail?

How do I check how much data I have used/have left?

Is there a cap on Unlimited Data?

What happens if I run out of data on my plan?

How do I block a number?

Using your services

My hotspot isn’t working. Why?

Why can’t I make or receive calls or texts?

Why is my data slow?

How do I perform a manual roam?

My picture messages (MMS) aren’t working. Why?

What can I do to stop spam calls or texts?

Why doesn’t anything work?!

Why is my data not working?

Service issues

Find answers and get help from Intercom Support and Community Experts

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