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This article is for users who have voice call verification enabled but are not receiving the call.

Provides troubleshooting steps to fix issues with Microsoft verification codes not arriving by checking device settings, notifications, signal, and app configurations.

Explains how to use the Microsoft Authenticator app offline while traveling internationally by selecting “Use a verification code” and entering the code generated in the app without needing cell service.

Learn how to add the Microsoft Authenticator app and set it as your default multi-factor authentication method for signing in to Microsoft 365.

Explains how to update or add new multi‑factor authentication methods in your Microsoft account, and notes that IT Solutions must assist if you cannot access your current MFA method.

Explains how to enroll in multi‑factor authentication using a call‑only phone, non‑smartphone, or Zoom Phone by selecting voice‑call verification during MFA setup.

Lists the email clients that are compatible with Microsoft 365 multi‑factor authentication across Windows, Mac, iOS, and Android.

Explains how to fix iOS Mail access issues by deleting the existing MavMAIL/Exchange account and re‑adding it using the MavMAIL setup instructions.