Microsoft Teams is a collaboration tool with audio/video telephony function. We recommend teams for everyday communication in smaller working teams. 

Microsoft Teams is preinstalled on all Windows and macOS computers.

On self-managed clients and mobile clients (e.g., Smartphones) you can download and install it from https://teams.microsoft.com/downloads

To use Microsoft Teams you have to order the Microsoft Cloud Subscription in the IT-Shop (see the instructions).

Further instructions