Zoom - Equip your team with tools designed to collaborate, connect, and engage with teammates and customers, no matter where you’re located, all in one platform.
Skype for Slack - Move your slack discussions to a group skype call
Mornin - An anonymous audio conferencing service
Aircall Now - Make voice calls inside Intercom Messenger 📞💬
100ms Live - Video and Live Streaming infra for a video-first world
Calls on Slack - Make voice calls in Slack