Network and service
Network upgrades, WiFi Calling, and troubleshooting network related issues.
By Casey and 1 other2 authors26 articles
Network coverageDiscover why the SMARTY network is so powerful.
Mobile and Broadband Estimated Maximum SpeedsThe estimated maximum speed that the SMARTY Network (powered by Three) will support.
What bandwidth and spectrum is available on SMARTY?Learn about the difference between 4G, 4G+, VoLTE, and L-Band.
Our policy on data shaping and network throttling
Free Wi-Fi on London UndergroundStay connected underground at over 250 stations
Coverage on the London UndergroundFind out more about network coverage on the London Underground
Emergency Alerts ServiceFind out more about the UK Governments Emergency Alerts Service
What is WiFi Calling?Here’s the lowdown on what Wi-Fi Calling is and why it’s great for keeping you connected
How do I use WiFi Calling?Everything you need to know about setting up and using WiFi Calling.
Which devices are compatible with WiFi Calling?To use WiFi Calling, first, you'll need a compatible mobile device.
My WiFi Calling is not workingSteps to help you troubleshoot WiFi Calling
SMARTY and eSIM – It's Here 🚀📱
How to Order Your eSIM ⚡
Your SMARTY eSIM Questions, Answered 🙋♂️📱So, you’ve got your new eSIM from SMARTY and a few questions. You’re in the right place.
Setting Up and Using Your eSIM 📱
eSIM Activation ErrorseSIM is quick and easy to set up, but sometimes things don’t go as smoothly as expected. Activation errors can happen if the Wi-Fi connection isn’t strong or if the…
Where to find your eSIM Confirmation Code?The quick guide to grabbing your eSIM confirmation code.
Groups & eSIMGroups make it easy to manage more than one SMARTY plan in one place. You can also choose whether each plan in your Group uses a physical SIM or an…
Dynamic Number AllocationChoose from a selection of available numbers when you join SMARTY with an eSIM.