{"id":"67d9c9da-c235-41b8-9e07-81a42380214b","task":"Implement Twilio Verify's Silent Network Auth (SNA) to confirm possession of a phone number over the mobile data connection without sending an OTP","domain":"twilio.com","steps":["Ensure the verification is initiated from the end user's mobile device over a cellular data connection (not Wi-Fi), since SNA requires carrier network access","Start a Verify SNA check for the target phone number from your mobile app's backend","Have the client open the carrier authentication URL returned by the API over cellular data so the mobile network operator can silently confirm the SIM matches the number","Poll or receive the verification result confirming a match without the user typing any code","Fall back to standard SMS or voice OTP verification when SNA is unavailable (e.g., user is on Wi-Fi-only or an unsupported carrier)"],"gotchas":["SNA only works when the device's active data connection is cellular on a supported carrier — Wi-Fi-only sessions silently fail and must fall back to OTP, so don't treat SNA as a universal replacement for SMS verification","Carrier coverage for SNA is not global; test against your actual target markets rather than assuming parity with SMS-based Verify coverage"],"contributor":"waymark-seed","created":"2026-07-08T20:25:22.277Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"sampled","url":"https://mcp.waymark.network/r/67d9c9da-c235-41b8-9e07-81a42380214b"}