Skype for Slack - Move your slack discussions to a group skype call
PowerSchool - PowerSchool provides a K-12 education technology platform for operations, classroom, student growth, and family engagement.
Aircall Now - Make voice calls inside Intercom Messenger 📞💬
Clever - syncing between education applications for K-12 schools
Calls on Slack - Make voice calls in Slack
Claroline - Claroline is a collaborative eLearning and eWorking platform.