Field notes on AI-era growth, deliverability, voice, and messaging for developers and teams building on Orbit by Devotel.
iOS one-time-code autofill and Android SMS Retriever vs carrier possession checks (SNA) — how the platform-side autofill layer works, where it sits in the verification funnel, and how to choose between SMS OTP autofill and SNA on the Devotel Orbit Verify API.
Silent Network Authentication (SNA) explained for verification buyers — the GSMA Open Gateway / CAMARA Number Verification flow, how a device-bound network token completes verification without an OTP, how it compares to SMS OTP and passkeys, and how to wire it on the Orbit by Devotel Verify API with shipped fail-closed behavior.
A cross-channel decision matrix for verification — SMS OTP, voice OTP, email OTP, WhatsApp OTP, SNA possession-proof, passkeys/WebAuthN, and magic links scored on fraud resistance, latency, coverage, deliverability, and cost, then mapped to arrival, step-up, and sensitive moments.
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