Our Video Learning Center is a great way to learn more about a wide variety of Futiva services and devices. What is Fiber? Using Your VVX 300 Using Your VVX 400 Using Your VVX 500 Using Your VVX 600 Presence for Windows Virtual Numbers Widget Unified Messaging Features Reassigning Users iPhone App Incoming Calls Hunt Groups Hosted Faxing Change Extensions Call Recording Call Control Auto Attendant Android App Adding Users Customer Admin Portal Hosted UC Demo What is UC?