 Next Cloud Talk. With Next Cloud Talk, you can chat, do video calls, and collaborate around your documents. Communication is the key. Just saying. Hey Carl, nice hair by the way. You have chat rooms about topics, one-on-one chats where you can even invite external participants. On top of that, you can group files and rooms and other resources into projects. You can easily integrate external applications and scripts into your chat workflows. Calls can be scheduled for a specific time. This is, for example, useful for web meetings or webinars. You will never miss a call again, except when you want to miss them. With Next Cloud Talk, you can do video calls and screen sharing with several people at once. You can also chat and do video calling with the native mobile apps. You will get push notifications every time you get a call or a new chat message, like this one here.