Can WiFi calling be used on O2

[TonS]

I don't get a signal indoors at home. Can WiFi calling be used?

[madasaf1sh · Accepted solution]

@TonS 

Yes, but only on Pay Monthly, it is not available on Pay As You Go. 

You need to contact o2 to enable it, this can be done by calling 202 from your o2 phone or 0344 809 0202 from any other phone. 

https://www.o2.co.uk/help/network-coverage-and-international/wifi-and-4g-calling