wifi calling not kicking in on new phone

[molliecollie10]

I ve received new phone and new sim .All happy but cant get WiFi calling.Help needed

[molliecollie10]

there s also a message saying SIM1 not provisioned

[MI5 · Accepted solution]

@molliecollie10 

You ned to use your old sim in new phone or do a sim swap Guide: Sim Swap: a mini guide 2017 update 

Get that working first.

Edit:

If this is a new contract to O2 you need to call to activate the sim.

Numbers here Guide: Coronavirus Community Help and Support 

and help on wifi calling https://www.o2.co.uk/connectivity/wifi-and-4g-calling

[Marjo]

Hey there @molliecollie10 , let us know if you need any further help with this or if you're all good now with the next steps provided above by @MI5