no wifi calls on my zenfone 9

[Br4Nk0]

Model Name: ASUS ZenFone 9 256 GB/8GB
Firmware Version:33.0804.2060.113
Rooted or not: device status also not showing
Frequency of Occurrence: Constantly
Wifi calling option not existant, #*#3642623344#*# does nothing but closer the dailer.

I work at mines where wifi is only available and no signal with my carrier.  I have a same Telstra card that worked fine in galaxy a53. 

[tochmi]

Telstra also has to certify the device for VoWifi to work properly.

But it is an issue that gives people a lot of problems. I got it to work, but my operator is different and I'm in another country.

[Br4Nk0]

Holy crap

The WIFE calling option magically appeared in my call settings.  Thank you background asus IT magicians. I guess the squeaky wheel gets the grease.

[tochmi]

Really? Check if after restarting the option disappears. 

[Br4Nk0]

yeh when I restart it disappears. I have put my sim in my fathers Samsung a32 works fine. I switched to WIFI preference on his phone little WIFI calling icon pops up in status bar makes calls normally with no issue. Dunno, there's no way testing it on my phone. When i do the code on my phone and go change it to wifi preference I can make calls but there's no indication they're actual wifi calls -'No wifi calling icon in status bar, voLTE icon still on'  remains.