Bunch - Bunch is a simple web dashboard that integrates with your teams' calendars.
Google Duo - Google's answer to Facetime, high-quality video calling on iOS and Android.
Airtime - Hang out with group video, share music & videos
GoRemote - A free & simple yet powerful European based solution to go remote. Video & audio conferences, screen sharing & chat with end to end encryption. Keep your team close and productive
Skype - Stay in touch with your family and friends for free on Skype. Download Skype today to chat and call on desktop and mobile.
Around - Find people to hang out with.