Information Services Division


Register for Multi-Factor Authentication (MFA) with phone call

This guide is aimed at

  • Staff only

Before you start

  • You should only complete these instructions if you have received an email from the project group inviting you to register for MFA.
  • You will need your phone.


  1. Go to https://aka.ms/MFASetup

  2. If you are not already signed in, log in with your UCL credentials

  3. Select Next to proceed

    MFA more information required

    Fig.1 – More information required
  4. Select I want to set up a different method to set up phone call as second factor authentication

    Microsoft Authenticator options
    Fig.2 – I want to set up a different method
  5. Select Phone from the drop-down menu

    MFA set up different method

    Fig.3 – Choose a different method
  6. Select Confirm to set choice

    Confirm Phone choice

    Fig.4 – Confirm Phone choice
  7. Enter the phone number you would like to use, select Call me as your authentication method and click Next

    MFA phone details call me option

    Fig.5 – Enter phone number and Call me selected
  8. Microsoft MFA will call the telephone number you have provided – answer the call and follow the instructions to confirm phone number

    Please note: When the "pound" symbol is mentioned, use the # key on your device

    MFA calling number notification

    Fig.6 – MFA calling number notification
  9. You have successfully registered your phone number for authenticating using calls, select Next to finish the registration process

    Call from MFA answered successfully

    Fig.7 – Call answered success notification
  10. Congratulations, you have successfully set up MFA with telephone calls

    MFA phone setup success notification

    Fig.8 – Phone setup success notification

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