Slack - A messaging app for teams who see through the Earth!
Houseparty - Brining empathy to online communication.
Meet for Slack - Quickstart Google Meet from your Slack workspace
Skype - Stay in touch with your family and friends for free on Skype. Download Skype today to chat and call on desktop and mobile.
WifiCall - Make unlimited calls to anyone from anywhere
Rume - Video chat that doesn't feel like work