- Admins that need SMS or voice authentication can select and configure a supported telecom provider through the Microsoft Security Store. This is the transition path Microsoft specified before ending its own SMS and voice delivery.
- Organizations with users who cannot move fully to passkeys or FIDO2 methods need to assess the third-party telecom option. The published timeline applies to Microsoft Entra ID in the public cloud.
- Move users to phishing-resistant passkeys where possible. If SMS or voice remains necessary for regulatory, technical or operational reasons, configure and test a supported telecom provider before Microsoft's native service ends.
- After February 1, users relying on SMS or voice will be required to register a passkey before sign-in unless the organization has arranged supported third-party telecom delivery.
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