Refer to the authentication types in the table below for each device.
A smartphone is the best choice since it provides the greatest level of security and allows you to use the Duo Mobile App. The app generates passcodes for login and can receive push notifications for easy, one-tap authentication.
Any cell phone or even a landline will work, however, it will not include the advantages of the app (passcodes, prompts, etc.) and may result in regular cell phone charges in order to call back and authenticate (depending on your phone service).
If you don’t have a cell phone, Duo allows you to use your landline phone. You would receive an automated phone call that requires you to hit “5” to confirm your identity.
Although not required, we recommend you enroll an additional device (such as a smartphone and desk phone) in MFA to avoid difficulties authenticating if you lose or don’t have your only enrolled device with you.
The Duo Mobile app provides the most user-friendly experience; however, there is no requirement to use it. As you go through the enrollment process:
When you log in, you will have both the phone call and passcode options available to you.