Wifi calling turn on but doesn't seem to work

[Nakedtraitor]

Hi, I've recently activated wifi calling using MyO2 and got a 2 years old Samsung A5.
I dial a number normally using the Samsung phone app however get an error message saying 'out of coverage' or 'contact not registered in the network'.
I checked in MyO2 that wifi calling is actuallt turned on.
What could I be doing wrong please?

[MI5]

Your phone isn't compatible.
Only those listed here are
https://www.o2.co.uk/help/network-coverage-and-international/wifi-and-4g-calling#how-do-i-set-up-wif...

[MI5]

https://www.o2.co.uk/help/network-coverage-and-international/wifi-and-4g-calling#15421

[Anonymous]

Only the newest high end flagship phones are compatible

[MI5]

Just tagging @Nakedtraitor in case they didn't see my reply.

[Anonymous]

While we are on the subject of WiFi calling @MI5 i recently activated mine  through my iPhone & not the myo2 app. It came up straight away on my screen & shows in myo2 as active. That’s another way I’ve found of activating it but i didn’t need to restart my phone after

[MI5]

All new contracts with compatible devices have it enabled by default now so all you need to do is turn it on in the phone settings.

[Anonymous]

Cheers for that @MI5

[MI5]

No worries mate

[Nakedtraitor]

Thank you so much for the replies. Looks like I've got a good excuse to change my handset now.