This article provides instructions for setting up Two-Factor Authentication (2FA) options other than the recommended "Push" notification within the Duo Mobile App. Smartphone users are strongly encouraged to use the Duo Mobile "Push" option as described in the main 2FA article.

Alternatives to the "Push" option that are covered in this article include: hardware tokens, bypass codes, secondary tablets or smartphones, and SMS texts. This article also shares information about how to confirm registered devices.