Duo / Enroll a mobile phone for use


  • To provide instruction on setting up and enrolling a mobile phone for use with Duo Security
  • To provide instruction on setting up and enrolling a cellphone (other than a smartphone) for use with Duo Security


  • Duo Security is the system-wide, two-factor authentication security application used at Miami University
  • All current Miami University students, faculty, and staff are required to use Duo for authentication when accessing Miami systems
    • Miami's alumni, retiree, and emeriti populations are not required to enroll in Duo and will continue to use their Miami password


  • All current Miami University Students, Faculty, and Staff
    • (Miami's alumni, retiree, emeriti, and former student populations are not required to enroll in Duo)


  • 312306: Duo Security Two-factor Authentication
  • Mobile Phone (dumb-phone, cellphone other than a smartphone)


  • Two-factor authentication adds a second layer of security to your Miami account. It allows you to verify your identity using a second factor — your smartphone or other mobile device — and prevents anyone else from logging in to your account
  • Duo works with any mobile phone — a cellphone other than a smartphone or a smartphone without the Duo Mobile app — by supporting authentication via SMS text message


  1. Open a supported browser: Chrome, Firefox, Safari, Internet Explorer 8 (or later), or Opera
  2. If you have already enrolled in Duo, follow these KB instructions to access Duo's Self Service Portal
  3. If this your first time enrolling in Duo, log in to any Miami University system using your UniqueID and MUnet password
    • Click the Start setup button
  4. Select Mobile phone as the type of device you want to add
  5. Enter the area code and phone number of the mobile phone that you are enrolling
    • A check-mark  is confirmation that you have entered the number in the correct format
  6. Verify that the phone number is correct, and check the box to confirm that you have entered the correct number 
  7. Click the Continue button
  8. Select Other (and cell phones) as the type of mobile phone you are enrolling
  9. Click the Continue button
  10. On the My Settings & Devices screen, select the authentication method you want to use
  11. Click Continue to Login to complete your enrollment
    • You will receive on-screen verification that you have enrolled successfully
  12. Click the appropriate button to authenticate your identity and complete your login




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Article ID: 54879
Mon 6/4/18 2:52 PM
Wed 12/13/23 11:42 AM
Can you resolve this issue yourself?
Yes! This is self-service with a smile.