Security - Setting up and using text notifications in Duo Self Service

Instructions for setting up SMS text notifications for two factor authentication through Duo Self Service. NOTE: Depending on your phone plan, standard text rates may apply.

NOTE: If you already have a cell phone enrolled in Duo to receive phone calls, you do not need to re-enroll that phone.  To learn how to use the text method with that cell phone number, scroll to the second section, "To authenticate using text message".

PERCEPTIVE CONTENT USERS: While you can use texting to authenticate to Perceptive Content, it is a more complex process.  If you access Perceptive Content on a regular basis, ITS strongly recommends using the Duo app or a hardware token ("fob").

To enroll a cell phone to receive texts

  1. Go to Duo Self Service at
  2. Log in using your campus username and password.
  3. Click on the desired option to complete the two-factor authentication process. (Yes, you are using Duo to verify access to Duo!)

    screenshot displaying sample Duo options

  4. Click +Add another device

    screenshot displaying option to add another device

  5. Select Mobile phone

    screenshot highlighting the mobile phone option

  6. Enter the phone number that will receive the texts
  7. After entering the phone number, a checkbox field displays to confirm the number. Review the number is correct, select the checkbox, and click Continue.

    screenshot displaying enter phone number field and checkbox to confirm phone number

  8. Duo will ask, "What type of phone is [your entered phone number]?"
  9. Select Other (and cell phones). NOTE: If you choose iPhone, Android, or Windows Phone, you will be guided to add the Duo app to your phone.  If you do not want the app or have a device that cannot use an app, such as a flip phone, choose Other.
  10. Click Continue

    screenshot highlighing phone type option "Other"

  11. Verify that your phone number is correct and leave the default option for the "When I log in" pull-down menu.
  12. It is a good idea to test your set up right away by logging into a campus system using the instructions in the next section. 
    NOTE: If the text does not go through, make sure that the Duo phone number (386-401-5734) is not blocked on your device.
    NOTE: If your cell phone is still enrolled for phone calls, select Device Options and delete it.
    NOTE: Consider changing "When I log in" to "let me choose" so you are in control of the method Duo uses each time.

To authenticate using text message

NOTE: For instructions on using text with Perceptive Content, see Security - Two-factor Authentication (Duo) FAQ
  1. When presented your Duo options, select Passcode.

    screenshot highlighting "enter a passcode" option
  2. A field will appear for the code. Click the link at the bottom of the Duo box to "Text me new passcodes*".
  3. You should receive a text message containing the code.
  4. Enter the code into the Duo field from #2.
  5. Click Log in

    screenshot highlighting-text-me-field and login
*NOTE: Duo's default message cannot be changed and suggests you will receive more than one code.  At UW-Platteville, you will only receive one, one-time use code per text. You will have 8 hours to use that code. Once used, the code becomes disabled.
If you have questions, please contact the ITS Help Desk at 608.342.1400 or  You may also visit the Help Desk on the first floor of the Karrmann Library.

    Keywords:two factor authentication sms   Doc ID:117441
    Owner:Deb M.Group:UW Platteville
    Created:2022-03-17 15:26 CSTUpdated:2022-04-01 08:31 CST
    Sites:UW Platteville
    Feedback:  0   2