EE, O2, Vodafone UK, and Three UK all support Wi-Fi calling for their subscribers. If your UK home line is with one of them, you can be reached on your UK number over any Wi-Fi while Openline handles data.

Still stuck?

Reach Openline support 24/7 through any of these channels:

When you write in, include your purchase code (the OL-… code we emailed you) and, if the eSIM is already installed, its ICCID (Settings → Cellular → tap the Openline line). That's enough for us to find your plan and diagnose without back-and-forth.