Zoom - Equip your team with tools designed to collaborate, connect, and engage with teammates and customers, no matter where you’re located, all in one platform.
Mumble - Mumble is an open source, low-latency, high quality voice chat software primarily intended for use...
Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
GSC - With GSC, you can pick from any of 14 worldwide datacenters to host your own free voice server.
WhatsApp - WhatsApp Messenger: More than 1 billion people in over 180 countries use WhatsApp to stay in touch with friends and family, anytime and anywhere.
TeamTalk - TeamTalk 4 is a conferencing system which enables a group of people to collaborate and share...