Moot - Moot is a platform for gamers through which they can take part in gaming discussions.
Mumble - Mumble is an open source, low-latency, high quality voice chat software primarily intended for use...
XIM APEX Manager - XIM APEX Manager allows you to manage mouse and keyboard on Xbox, PS4, and PC, etc.
Discord - Step up your game with a modern voice & text chat app. Crystal clear voice, multiple server and channel support, mobile apps, and more.
GamerLink - A modern way to find and connect with other gamers
RaidCall - Free & Light. Setting up is fast and easy; with no need to rent or set up servers. Low CPU usage and minimum memory footprint allows for smooth, uninterrupted communication. im. Group Communication.