No Wi-Fi Calling setting

[gargamel314]

Please tell us some basic information before asking for help:
Model Name: ASUS ZenFone 9 256 GB/16GB
Firmware Version:32.2040.2040.28
Rooted or not: No
Frequency of Occurrence: Continual
APP Name & APP Version (If your issue relates to the app): The phone, settings
In addition to information above, please also provide as much details as you can, e.g., using scenario, what troubleshooting you've already done, screenshot, etc.
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I'm using Mint Mobile (T-Mobile MVNO), and Wi-fi calling doesn't work. The option doesn't even present itself in the menu. I find it very hard to believe that a product that markets itself as fully compatible with T-Mobile and its MVNO's doesn't support this basic feature. I was wondering if anyone has found a way to make this work, or is this just an early adoption bug?

[cilsoe]

Try entering the following in the phone app: #*#3642623344#*#

[ArjanB]

T-Mobile "calling over wifi" works in my country, so it should only be a setting change for Asus.

The other provider it does not in my country is KPN.
Entering the code #*#3642623344#*# does bring up "calling over wifi" for the KPN, but it doesn't work

[Danishblunt]

I literally cannot believe you have a mobile provider that is literally owned by the actor that plays deadpool.

[pequinois44]

bonjour . paramètres......appels , en bas activer appels wi fi non ?