After logging into a campus system or service through the Central Authentication Service (CAS), the Multi-factor Authentication (MFA) prompt will be displayed. Call Me will be offered as a possible authentication method.
The Call Me option allows you to use a mobile or landline telephone number as a second form of authentication. If selected, this option will dial a number connected to your iOS or Android device, or to a landline/phone number that is registered.
To learn how to add a phone number for callback to your Multi-factor Authentication Profile, view the Enroll a Phone Number in Callback article.
To complete MFA using the Call Me option, follow the steps below:
- Log into CAS. Under Choose an authentication method, click Call Me.
- You will receive a call with the following message on the phone number listed in your MFA Profile:
"Hello, this is Duo. If you are not expecting this call, please hang up. Otherwise, press any key to login." - Press any key on the phone keypad to verify your identity and complete the authentication process.