You need to call O2 to enable it first Guide: Coronavirus Community Help and Support
Then turn it on in your MyO2.
Hey @Phone-boy hope you're having a good evening. Welcome to our community!
Let us know if you have any further questions on wifi calling or if you're all sorted now.
→ COVID-19 support - Help and support from O2 during the lockdown
→ Access for You: Registration - Find out how to register for our Access for You service.
→ Just joined the community or thinking of registering? Check out this handy starter guide!
→ Have a query about your account? See if the My O2 how-to guide will help
If you'd like to take part, why not register?
Track usage, upgrade and get support with the My O2 appDownload My O2