Log in Using a Phone Callback for Two-Step Login
How to use a phone call to authenticate with Two-Step Login
This article applies to: Two-Step Login
The automated call will ask for a specific numeric key to be pressed. For more information, read the news article about this change.
Two-Step Login calls you on your mobile phone or landline. To authenticate:
- When you're prompted with the Two-Step Login screen, click Call Me.
- Answer the phone call.
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When you hear the automated "Welcome to Cornell Two-Step Login" greeting, press the requested number key on your phone to authenticate. To find the number:
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Press the number shown in the authentication prompt on your computer screen:
or
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For a phone with Caller ID, the number you need to press appears as the last digit of the incoming phone number. For example, if Caller ID displays
607-253-3333
, press 3 on your phone keypad to log in,
or
- Listen to the phone message and press the requested number on your phone.
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Press the number shown in the authentication prompt on your computer screen:
Voice/SMS calls from Duo usually display a Caller ID from an on-campus Cornell phone number. Occasionally a Duo call may come from an off-campus phone number elsewhere in the United States. If you just tried to log in and are expecting a Duo call, the call is probably legitimate.
If you think this is a fraudulent login attempt, press # to report it to a security engineer.
For more information, see Duo Security's Guide to Two-Factor Authentication.
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