I believe international telecom industries are working[1][2] on it. I don't know an ETA. I signed up on their mailing list without knowing what to expect. The c

I believe international telecom industries are working[1][2] on it. I don't know an ETA. I signed up on their mailing list without knowing what to expect. The content of each email is beyond me but looking at the clout on the email signatures convinced me this was a serious and viable movement. TLDR; this is a technical approach to preventing number spoofing except where authorized. Presumably to be implemented by the international telecom industry. [1] https://transnexus.com/whitepapers/understanding-stir-shaken/ https://transnexus.com/whitepapers/understanding-stir-shaken... [2] https://datatracker.ietf.org/wg/stir/about/ https://datatracker.ietf.org/wg/stir/about/