MFA: Set up a Phone call or sms text message as second method of authentication

This page provides instructions on how to set up a Phone call or sms text message as a SECOND method of authentication.

You must already have enabled Multi-factor authentication (MFA) and downloaded and configured the Microsoft Authentication App to be your default authentication method. Visit the How to set up Multi-Factor Authentication (MFA) page for instructions.

If you do not have a smartphone, or cannot use the Microsoft App, we have instructions on how to set up MFA with a phone call or text message as your FIRST, or preferred method, of authentication.

To set up a Phone as an additional second factor

Go to Microsoft Sign Ins, to the Security Info section.
Select Phone from the pull down list of methods.
Tick either
- "Text me a code"
  This will result in a SMS message being sent to your phone containing a 6-digit verification code for you to enter at login.
  
  - OR -
- "Call Me" option
  This will result in a phone call with an automated voice asking you press a key to verify.
Finally select next.

Logging in

If using "Send me a code by text message", a SMS message will be sent to your phone.
Enter the code contained to when prompted to complete the logon process.
If using the "Call me" option, the designated number will receive a phone call with instructions on how to proceed to verify your account.
You can set up both text message and call options if you wish. These can be on different phone numbers, including a landline.

The LSE recommends you set up at least one phone option, in addition to using the Microsoft Authentication App, to ensure you always have access to your account.

You can select another phone number as an additional factor: You may find it useful to set up a phone number (such as Office phone) that is not the same as your mobile that runs the Authenticator App/Authenticates via SMS in case you lose or break your mobile device, to ensure you always have access to your account.