I have a Samsung S10. Wifi calling has been enabled on my O2 account for years but on this phone i've never been able to see the settings for it on the actual device. But recently it has started draining my battery by 5-15% overnight.
I asked O2 to disable it on my account since i couldn't turn it on/off from the device. The option was never there despite O2 support insisting it should be. But even with it disabled on my account, it is still somehow draining my battery. It used 15.1% of my battery last night in 7 hours.
Anybody got any ideas how to stop this?
Thanks but the wifi calling setting has never appeared on my handset. I know where it should be as i can see it on other people's phones. But despite O2 insisting it was enabled from their side, i've never been able to see the setting on the handset. O2 couldn't figure out why not, so i asked them to disable it on my account. I thought that would stop the battery draining but it still does