What is 4G Calling?

4G Calling (also known as VoLTE) is a free service that lets you make and take calls, and text, over our 4G network.

Better call quality

Calls made over 4G give you crystal clear sound quality.

Improved coverage

Say goodbye to black spots of coverage around your home.

Use 4G as you talk

Perfect for chatting and using apps like Google Maps at the same time.

What is Wi-Fi Calling?

Wi-Fi Calling is a way to make and take calls, and text, in any location covered by wi-fi.

No extra charge

Minutes and texts come out of your monthly allowance or normal network rate.

Improved coverage

Connect to your home wi-fi or one of our 5 million BT Wi-fi hotspots.

But how do they work?

Check your coverage

Your handset does the hard work for you. It automatically chooses the best bandwidth for you. First it will try wi-fi, then 4G, 3G and 2G. Our coverage is great, so it’s unlikely you’ll ever be stuck without the ability to make a call.

How to get 4G Calling

Make sure you’re using a compatible handset and you’ve downloaded the latest software.

4G Calling will kick in automatically when you enter an area with 4G coverage.

How to get Wi-Fi Calling

Make sure you’re using a compatible handset and you’ve downloaded the latest software.

Turn on Wi-Fi Calling (it may already be on):

  • On iOS: go to settings, select phone then toggle on Wi-Fi Calling.
  • On Android: go to Call settings and toggle on WiFi Calling.

Are you a BT Mobile customer?

Upgrade your plan

Get more from your mobile: upgrade your plan or add extra SIMs with Family SIM.

Still in your BT Mobile contract

You can still manage your account and buy add-ons for data, speed and more.

Get help with mobile

Need a hand? You can get help online, via articles or give us a call.

Important information

The legal stuff

Δ The monthly price for all BT Mobile plans and all out of bundle charges and add-ons will increase each year from 31st March by the Consumer Price Index rate of inflation published in January each year plus 3.9%. See bt.com/tell-me-more for details.