Roaming is when your phone connects to a network outside your home country and uses it for calls, SMS or data. Your home carrier pays the foreign network for that traffic, then bills you (or includes it in your plan).
Inclusive roaming
Many UK carriers include roaming in your monthly plan for certain countries — typically the EU and a handful of others. Beyond that list you'd pay daily fees or per-megabyte charges.
Fuse roaming
Fuse Pulse and Surge plans include data roaming in 130+ countries at no extra cost. You use the same monthly allowance you have at home.
Avoiding bill shock
- Always check what's included before you travel
- Turn off Data Roaming in Settings if you're not on an inclusive plan
- Use Wi-Fi where you can