Skype for Slack - Move your slack discussions to a group skype call
VoiceText for Slack - Voice notes w/ transcription in Slack
Aircall Now - Make voice calls inside Intercom Messenger 📞💬
Phonic.ai - Phonic is the easiest way to collect audio or video in an online survey. Designed for market research teams, startups and academic researchers.
Slack - A messaging app for teams who see through the Earth!
Einote - Einote is a Chrome extension that allows Internet users to take notes on the fly with their voice right from any webpage.