Calls on Slack - Make voice calls in Slack
RemindUs - Advanced reminders for Slack teams
Aircall Now - Make voice calls inside Intercom Messenger 📞💬
Task Reminder - Save time and energy with automatic reminders
Skype for Slack - Move your slack discussions to a group skype call
Slack Video Messaging by Standuply - Easily record and send video messages in Slack 📹