Microsoft Teams is the chat-based workspace in Office 365. It's the hub for team chats, calls, meetings, and private messages. This product is customizable to meet your individual needs, and it's secured and standards-compliant to make sure your collaborations are private.
Microsoft Teams helps your team work better together. It’s one APP that brings your team’s conversations, meetings, files and notes together into a single place for open and seamless collaboration.
Teams is accessible via a desktop client, web and mobile devices. This APP is available for use on Windows (windows 7 and later), Mac desktop (MAC 10.10 and later), iOS v9 and later (iPhone and iPad), Android 4.4 and later and Windows Phone 10.0.10586 and later. Teams is not available via a mobile web browser.
To download and install the client on your personal desktop device, follow this link: https://teams.microsoft.com/downloads
To access Teams via the web, simply sign into your account via a supported browser and select the Teams APP from the APP listing associated with your account. Teams supports the web client on Microsoft Edge 12+, Internet Explorer 11+, Firefox 47.0+ and Chrome 51.0+. Individuals who attempt to open the Teams web client on Safari will be directed to download the desktop client.
For information on configuring and using Teams please refer to the Teams documentation.
For information from Microsoft concerning known issues: Known Issues
Please note, at this time Teams does not currently support inviting guests or external users. MS is working on making this feature available in the future. To check on the status of this feature, please visit Microsoft's community forum page.