Walkie - Walkie is an online communication providing software that allows you to remain in touch with the other persons.
Skype for Slack - Move your slack discussions to a group skype call
Slack Voice Chat by Standuply - Easily record and send voice messages on Slack 🗣️
Aircall Now - Make voice calls inside Intercom Messenger 📞💬
Cord - One tap voice chat
Slack - A messaging app for teams who see through the Earth!