A common solution for collaboration is Microsoft Teams. Entry and use are also included possible free of charge, including chats, file sharing, or real-time document collaboration. From today Microsoft plans to add a new feature to the free team version that can be used to plan meetings.-
But there are also paid versions of Microsoft Teams with more features. Also today it should be possible to use the premium version free of charge for six months. The regular price is usually € 10.50 per user per month.
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