Skype for Slack - Move your slack discussions to a group skype call
Pluot Communications - Big-screen video conferencing for startups
Aircall Now - Make voice calls inside Intercom Messenger 📞💬
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.
HandsFree 2 - Call and SMS in Mac using your Android phone via Bluetooth
WeKast - Presentations from your phone without a computer