Wifi calling not working with and

Hello guys.Sorry to make a new post but i see in the old posts no one answer anymore.
I have problems with wifi calling using Cloudflare dns.Was working untill like 1 week ago ( before when i do a dns check i have seen the dns servers from Germany but now i see the ones from Netherland i dont know if is any connection with the problem but i want to mention it )
The wifi calling network is on Vodafone Deutschland.If i use the and dns servers is not connecting to wifi calling servers but if i use my ISP dns is working.I think is something wrong on Cloudflare side!

I see the Dusseldorf server is up and now Wifi Calling is working via and

Post close please!