OpenPhone - Simplest way to own a business phone number
Skype for Slack - Move your slack discussions to a group skype call
Yodel - Group photo and video sharing. Create stories with friends, join stories from around the world.
Aircall Now - Make voice calls inside Intercom Messenger 📞💬
Houseparty - Brining empathy to online communication.
Slack - A messaging app for teams who see through the Earth!