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Self-service reactivation of a Duo phone with the same phone number.
This article walks through the process of registering for Duo using the OTP c100 hardware token.
Get signed up for Duo two-step login!
How to add, remove, reactivate or deactivate Duo devices.
How to replace a phone used for Duo two-step authentication.
This article walks through the process of using Duo with an offline cell phone.
Information about the Duo remember me function.