Since the Covid-19 pandemic we need new ways of staying in touch

Check out these FREE ways

Jitsi: Jitsi Desktop - Open Source Video Calls and Chat Secure video calls, conferencing, chat, desktop sharing, file transfer, support for your favorite OS, and IM network. All this, and more, in Jitsi - the most complete and advanced open source communicator.
Jami: Jami (previously GNU Ring) is a solid communication client, allowing for distributed video calls, text chat, and screen sharing.
OBS Studio: Free and open source software for video recording and live streaming. Download and start streaming quickly and easily on Windows, Mac or Linux.

Mumble: Mumble is a free, open source, low latency, high quality voice chat application. Mumble was the first VoIP application to establish true low latency voice communication over a decade ago. But low latency and gaming are not the only use cases it shines in.
Asterisk/SIP: Asterisk is a free and open source framework for building communications applications and is sponsored by Sangoma.

Conversations: An encrypted, user friendly XMPP instant messaging client optimized for mobile
IRC: Internet Relay Chat
- Pidgin: Pidgin is a chat program which lets you log into accounts on multiple chat networks simultaneously. This means that you can be chatting with friends on XMPP and sitting in an IRC channel at the same time. Pidgin runs on Windows, Linux, and other UNIX-like operating systems.
- The Lounge: Free and open-source. The Lounge is open source and licensed under the MIT license. Cross platform. It doesn't matter what OS you use. The Lounge just works wherever Node.js runs.