The same case for me - I am also using the exact same device and can make calls even on flight mode - but I haven't tested connect to Maxis 4G network as the Unifi signal in my area is good. (2G will work)

For devices like Samsung/Apple, you might need to wait software update to be able to use such function.

Xiaomi devices can enable it using a secret code though (*#*#869434#*#*) - after seeing Vowifi carrier check disabled - you can toggle WiFi calling (made calls using WiFi) on under settings. Not sure for other Chinese manufacturers though.

I might not need it on usual settings but it is anyway a good addition.



This post has been edited by shaun_kok: Aug 18 2023, 07:07 AM