For travelers or individuals in OFAC-sanctioned countries, including
Cuba, Iran, North Korea, Sudan, Syria, and the four regions of Ukraine (Crimea, Donetsk, Luhansk, and Sevastopol), please see
this article regarding the limitations of Duo in these areas
Ahead of traveling, plan ahead and enroll in additional Duo options if needed before your trip. For example:
- No cellular or WiFi service? Use the Duo Mobile app to generate passcodes.
- Wireless Plans? Check with your cellular provider to verify that your phone is operable overseas.
- Do you use multiple SIM cards? Enroll the phone number associated with each one in Duo.
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Duo Option
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App Notification
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App Passcodes
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SMS Passcode (Text)
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Phone Call
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Description
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Duo sends a login request to your device.
Press Approve to log in.
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Generate a passcode with the Duo app
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Get 10 single-use passcodes via text message.
good for 30 days
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Duo calls your phone. Press any key.
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Type of Device
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Smartphone, tablet, or paired smartwatch
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Smartphone, tablet, or paired Apple Watch
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Phone with text message
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All phones
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Data Usage
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Each notification is only 2KB of data
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No connectivity needed
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A single text message.
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A single phone call
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Requires Connection
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Yes: cellular data or WiFi
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No
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Yes: cellular
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Yes: cellular or landline
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More information regarding Duo offline access can be found here
Questions or concerns? Please contact the UNIT Service Desk or (USA area code +1) 610-519-7777.