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Caller Verification for AI Phone Agents: 5 Rungs

Quick answer: Classify each caller request by what it discloses or changes, then gate it at the lowest rung of a five-rung ladder that covers it. Caller ID proves the call came from a number, not that your customer placed it. NIST SP 800-63A revision 4 bans knowledge-based verification outright. Au…

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  1. 2026-09-22 15:00 · DEV Community — Machine Learning
    Caller Verification for AI Phone Agents: 5 Rungs

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