Enrolling a Phone Number for Phone Call or SMS Passcode

Cellphone (phone call or SMS passcode)

  1. Log in to the Duo Self-Service Portal with your MyID and password. If you have an existing method, authenticate with Duo, then select Add a device.
    Screenshot of Duo self-service portal with "Add a device" circled.

  2. To enroll a basic cellphone, select Phone number from the list on the Add a device screen.
    Screenshot of "Add a device" screen from Duo self-service portal with Phone number circled.
  3. Select your country code and enter your telephone number. Check the box to agree to receive messages from Duo. Then click Continue.  
    Screenshot of Duo self-service portal "Enter your phone number" screen with telephone number entered and permission checkbox checked.
  4. Confirm the phone number is entered correctly, then click Yes, it’s correct.
    Screenshot of Duo self-service portal asking if entered phone number is correct.
    • You may be asked to confirm ownership of the phone number by sending a passcode by text or a phone call
      Screenshot of Duo new phone setup with phone number listed and option to send a passcode or a call made to the phone.
    • Enter the passcode sent by text and click Verify.
      Screenshot of Duo phone setup with "Enter a passcode" screen with text box and "Verify" button.
  5. You will be taken to the Added phone confirmation screen.
    Screenshot of the Duo setup "Added phone" confirmation screen.

Landline (phone call only)

  1. Log in to the Duo Self-Service Portal with your MyID and password. If you have an existing method, authenticate with Duo, then select Add a device.
    Screenshot of Duo self-service portal with "Add a device" circled.

  2. To enroll a landline, select Phone number from the list on the Add a Device screen.
    Screenshot of "Add a device" screen from Duo self-service portal with Phone number circled.
  3. Select your country code and enter your telephone number. Check the This is a landline phone box and agreement to receive messages from Duo.Then click Continue.
    Screenshot of Duo self-service portal "Enter your phone number" screen with telephone number entered and checkbox for landline and permission to receive messageschecked.
  4. If you have an extension, enter that extension number and then click Add extension. Otherwise, click Skip this step.
    Screenshot of Duo self-service portal "Enter an extension" screen with text box and "Add extension" or "Skip this step" options.
  5. Confirm the phone number and extension is entered correctly, then click Yes, it’s correct.
    Screenshot of Duo self-service portal asking if entered phone number is correct.
    • You may be asked to verify your phone number with a call
      Screenshot of Duo new phone setup with phone number listed and button for "Call my phone".
    • Answer the phone call and type the passcode given into the box and click Verify
      Screenshot of Duo phone setup with "Enter a passcode" screen with text box and "Verify" button.
  6. You will be taken to the Added phone call confirmation screen.
    Screenshot of the Duo setup "Added phone call" confirmation screen.

Print Article