WiFi Calling on Galaxy S9 Plus

[BigDaddyUK]

Hi All.

Galaxy S9 Plus with O2 SIM card does not work WiFi Calls.No icon and option phone Settings is inactive. With EE SIM card, everything works !! What could be the problem?

[Anonymous]

@BigDaddyUK is the phone unlocked as it looks like it’s locked to EE. You won’t get WiFi Calling if you didn’t get the phone from O2 Refresh directly 

[BigDaddyUK]

What u mean O2 Refresh? It is New contract from O2..

And phone is Unlocked. (Factory Unlocked) 

[Cleoriff Level 92: Chief]

Hi @BigDaddyUK Have you followed the guide here on how to set it up?

https://www.o2.co.uk/business/support/network-support/wifi-and-4g-calling

[Anonymous]

@BigDaddyUK Where did you purchase the phone from because if you don’t have an O2 Refresh tariff you won’t get WiFi Calling. Read my guide on Refresh here

https://community.o2.co.uk/t5/Discussions-and-Feedback/A-Guide-To-O2-Refresh/td-p/877701

[BigDaddyUK]

Yes, also Activated it on my O2 Account. Will see tommorow. For now it is like this..

[MI5 Level 94: Supreme]

If you have only just activated it in your MyO2 it can take up to 24 hours to be turned on but you will also need to reboot your phone.

[BigDaddyUK]

It is not correct for 100%. My phone from UK retailer with O2 Unlimited contract. I did't buy directly from O2.

Yesterday I sent a request for activation of WiFi calls and today I have already connected it and WiFi calls are working. It just had to be activated from the O2 account, by default this function is OFF !!
The problem is solved!

MI5

Yes thank you. Already done.

[MI5 Level 94: Supreme · Accepted solution]

It's off by default because not all phones are compatible with the services and as I said, it takes up to 24 hours to become active once requested.

[DaveA]

Hi,

Did you get it working? Just asking as the screenshot you displayed was for the 4g calling setting. The wifi calling setting on my S9+ is in the Phone app>settings.