Skype for Slack - Move your slack discussions to a group skype call
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.
Aircall Now - Make voice calls inside Intercom Messenger 📞💬
Face to Face - Video meetups for online communities (PH room password meow)
HandsFree 2 - Call and SMS in Mac using your Android phone via Bluetooth
Slack - A messaging app for teams who see through the Earth!