Skype for Slack - Move your slack discussions to a group skype call
Mimo - Learn how to code on your iPhone📱
Calls on Slack - Make voice calls in Slack
Py - Learn to code on the go 📱
CallKite - Your website’s video call center in just one click.
Enlight - Performance and Error Monitoring. We keep an eye on your applications and notify you about performance issues and errors.