RemindUs - Advanced reminders for Slack teams
Skype for Slack - Move your slack discussions to a group skype call
Task Reminder - Save time and energy with automatic reminders
Aircall Now - Make voice calls inside Intercom Messenger 📞💬
Slack Video Messaging by Standuply - Easily record and send video messages in Slack 📹
HandsFree 2 - Call and SMS in Mac using your Android phone via Bluetooth