Originally Posted by
Frostyuk72 Does the s8 plus support WiFi calling on an unlocked version UK model any advise as I'm being given the run around
I don't know specifically about that model or about your service provider in the UK. But on my model and on my service provider in North America, you need a specifically modified kernel to do it. So only very specific phones are supported. This is on Android 6.0.1, but not all phones with even that version of Android. Hopefully in the future all you'll need to do is download some kind of an app and it'll work on any model.
My phone is unlocked, and it was previously locked, but the feature was still implemented. So locked or unlocked should be irrelevant, it's just whether your phone is supported or not.