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Comment by tsimionescu

2 days ago

That still uses their infrastructure at some point, as you are still using your carrier's phone number when you make a VoWiFi call.

Yeah, but what’s the problem they’re trying to avoid? Bad SIP implementation not working with their servers?

Just text the user: “Hey, you’re using an unsupported VoWiFi stack, if it breaks – that’s on you.”

  • "That's on you" is not something that works at cellular scale. You're going to end up fighting some mafia scheme microcosm forming around that little thing.