In 1994, Netscape shipped SSL and the web got something it had never had: a way to prove a site was who it claimed to be, and a channel no one could quietly listen to. The padlock that followed wasn't a feature — it was permission. Permission to type a card number, to bank, to see a doctor's portal.
AI voice is at the same threshold. The capability to have a machine dial a phone and hold a fluent conversation arrived faster than the trust to answer it. The missing piece isn't better speech — it's verifiable identity, clear disclosure, and a record you can audit.
The pattern rhymes: an open standard that anyone can implement, and commercial infrastructure built on top. That's the shape SSL took, and it's the shape a trust layer for voice will take too.