I think the only option going with VoIP: I just made a quick search for VoIP services that accept XMR and found this: cryptwerk.com/companies/voip/xmr/
I don’t know any of these services so DYOR but I think you should be able to find something pretty solid (depending on your threat model of course). Overall I don’t know if going non KYC is even possible. However if you should find a way would you mind sharing your experience with us?