WiFi call om FP4 suddenly doesn't work anymore

/e/OS Devices Fairphone
1

Before the update to v.3.2 WiFi calling on my FP4 didn’t work.

After the update to v.3.2 this problem was initially solved but suddenly WiFi calling has stopped working again.

Has anyone else got the same problem and/or a possibly solution?

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2

technically the FP4 should be able to do wfiicalls just fine. The last issue on this is from 2022.

Here was a forum entry from 2023: Murena Fairphone 4 Wifi-Calling not work

What provider do you use?