Concerto extends the Deverto Unified Communications solution to your mobile device with audio & video calls, rich presence, instant messaging, conferencing, and advanced features from a single, easy-to-use application.Note: You need to have a subscription at a service provider operating the underlying communications system to use this app.Key Features:- Calls with advanced telephony features- Conference calls with any number of participants- Viewing shared remote desktops- Company address book integration- Searching your contacts by name, email, or phone number- In-app user profile settings