Information Services Division


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

This guide is aimed at

  • Staff, Associate staff, Honorary
  • Student
  • Alumni

Before you start

  • You should only complete these instructions if you have been prompted 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 with registering for MFA or select Skip for now if you would like to defer registering for a later date. You will have a 14-day grace period from the day you receive the notification to register for MFA. Alumni and Honorary must register on their first login, the 14 day grace period does not apply. 

    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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