Hello,

to be honest I don't know this phone, it's my friend who uses it.

WIFI calls is a new option provided by operators to make calls via WIFI. It seems to me that this model supports this feature. But in the end, it also depends on your operator if it offers this option and the origin of the model sold. As Digitec says in his comment. Take a model above, it's really worth it (Samsung A5) 100CHF more, but in the end you'll win in the long run.

Greetings

I am not able to answer this question as I bought this phone for a person who does not use the network features very much. I'm sorry.