wifi calling

[mattc]

I cant seem to enable WIFI calling on my Galaxy note 9 its been enabled in myo2 App but dosnt seem to work. all help videos show different optiions to ones that I have

[MI5 Level 94: Supreme · Accepted solution]

@mattc 

O2 instructions here https://www.o2.co.uk/business/support/network-support/wifi-and-4g-calling#Samsung-set-up 

Make sure you reboot phone first.

[Foddersin Level 3: Thinker]

Can you answer these questions below and maybe we can help a little further?

• Did you purchase the device directly from O2?
• To check if your phone’s running O2 firmware, dial *#1234# and look at the CSC entry. If this line includes ‘TEF’, ‘O2U’ or ‘OTF’ then your device has O2 firmware and you can set up Wifi and 4G Calling.

[MI5 Level 94: Supreme]

Only Samsung that requires O2 firmware is J3 (2017).
The Note 9 will also work on open market firmware.

[liggerz87]

Since when I had wifi calling on account but the pixel 2xl I had didn't have wifi calling on it

[BOSSGOGG]

I have an unlocked UK note 9 ( on BTU firmware ,)

Took 3 days for WiFi calling and VoLTE to become active after enabling them on my account.

It also appeared after rebooting.( Which I had been doing periodically )

I have the option to prefer WiFi over cell also.

Phone app>3 dots >settings>WiFi calling.