Old phone is not compatible with DUO Mobile app

Some old phones may not be compatible with DUO Mobile app. If this is a case, you can try Duo Append Mode. Please refer to this post:

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Bob Lin

Bob Lin, Chicagotech-MVP, MCSE & CNE Data recovery, Windows OS Recovery, Networking, and Computer Troubleshooting on http://www.ChicagoTech.net How to Install and Configure Windows, VMware, Virtualization and Cisco on http://www.HowToNetworking.com

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