Wifi calling bad quality

People I call have been complaining about bad quality. After I switched off Wifi calling the problem seem to go away. I guess it has to do with suboptimal wifi in our office a certain locations.

Anyone else has bad experience with Wifi calling?

Yes, same here. I also had these issues at home, but I could fix it by customizing my FRITZ!Box’s settings according to AVM’s FAQ.

Hi,
could you please tell us what you changed in your Fritzbox. Thx

I’ve followed these instructions:
<https://avm.de/service/wissensdatenbank/dok/FRITZ-Box-7590/3314_Einstellungen-der-FRITZ-Box-fur-WLAN-Call-bzw-WiFi-Calling-optimieren/>

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I don’t often use it but I was recently in the country with very poor mobile signal but a good Wi-Fi from a FTTH box.

When I placed a call the quality was excellent but the calls dropped each time after about 30s, maybe less. The calls were international, I don’t know whether that might have a bearing.