How the 3G switch-off may affect your service while you’re abroad

Network operators around the world are starting to switch off their 3G services. This is so they can free up capacity to expand their 4G coverage and add new 5G services.

If you travel to a country where 3G services have been switched off, your roaming experience might be impacted. This will depend on whether 4G Calling abroad is available in the country you’re visiting, and if your device is compatible.  

What is 4G Calling abroad?  

With 4G Calling abroad, you’ll be able to make calls and use data over 4G networks when roaming in certain countries, which should result in improved call quality. 

It is different to 4G Calling in the UK, as it’s a new technology that requires phone manufactures to make extra software to support it.  

Where is 4G Calling abroad available?  

4G Calling abroad is available in these countries:  

  • Australia  
  • Belgium 
  • Canada 
  • Denmark 
  • Estonia 
  • Finland 
  • France 
  • Germany 
  • Greece 
  • Iceland 
  • Italy 
  • Malaysia 
  • Netherlands 
  • Puerto Rico 
  • Singapore 
  • South Korea 
  • Spain 
  • Taiwan 
  • United States of America 

We’ll update this list when 4G Calling abroad becomes available in other countries, so check this page before you travel. 

How can I use 4G Calling abroad? 

To use 4G Calling abroad, you need to:   

What if my phone isn’t compatible? 

If your phone isn’t compatible with 4G Calling abroad, you’ll still be able to make calls over the 2G network. This means you may experience a lower call quality while using your phone.  

Upgrade your phone 

Upgrade your phone so that it’s compatible with 4G Calling abroad. 

Check our device list to see if your phone is compatible.   

Choose a new phone on Pay monthly 

If your phone doesn’t support 4G Calling abroad and you’re on a Pay monthly plan, you could think about switching your device. Have a look at our different phones online. 

Upgrade my Pay monthly phone 

Choose a new phone on Pay as you go 

If you can’t use 4G Calling abroad and you’re on a Pay as you go plan, getting a new device could help. Have a look at our phones online and then either visit your nearest store, or call 0333 3043 023. Our phone lines are open Monday to Friday, 8am to 10pm and Saturday to Sunday, 8am to 8pm. 

Find my nearest store 


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