Duo registration guide for cell phones without the Duo Mobile app


Some non-smart cell phones (such as flip phones) may be unable to run the Duo Mobile app.

This article contains instructions on how to register a cell phone with just a number. Phones registered this way can receive SMS passcodes (over text message) and also phone calls to verify your identity.

Please note that for smart phones with the capability to use it, the Duo Mobile app is the preferred method of interacting with Duo Security for two-step login. The app is secure, convenient, and provides you with the ability to generate passcodes you can use later as an emergency backup.


  1. Open your preferred browser on your desktop or laptop computer
  2. Go to https://duckid.uoregon.edu/
  3. Click Manage Your Duck ID

  4. Enter your Duck ID and password
  5. Click Log In
  6. Click Manage Two-Step Login Devices
  7. Click Start Setup
  8. Choose Mobile phone

  9. Enter your Mobile Phone Number when prompted, check the box to confirm your number, and click Continue
  10. When it asks what type of phone you are using, choose Other (and cell phones) and click continue

  11. Your phone has now been added and can be used to receive phone calls and SMS messages for two-step login


Article ID: 107878
Fri 5/15/20 4:56 PM
Tue 1/5/21 6:03 PM

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This page provides instructions for getting started with Duo, UO's two-step login service.