We offered two authentication methods with “Duo Mobile” app. “Duo Push” will require you to have internet access and only use a small amount of internet data traffic. Instead, you can use the “Passcode” (one-time) which does not required internet access during the authentication.
Moreover, you can refer to the “Duo Travel Guide” to have more information for your travel planning.
If you encounter any difficulty about authentication during your trip abroad, please contact our help desk email@example.com at 8822 8600 during office hour.