Mumble - Mumble is an open source, low-latency, high quality voice chat software primarily intended for use...
Mohawk Voice - Mohawk Voice is a low resource, high quality VoIP program which is free to download and use.
GSC - With GSC, you can pick from any of 14 worldwide datacenters to host your own free voice server.
Steam Chat - Steam Chat is a chatting app for Steam users that enables them to chat through their cell phones and get updated with what is happening.
Vivox - Vivox is called to be one of the leading chatting platforms for online gamers.
Roger Wilco - Download Roger Wilco Mark I now from the world's largest gaming download site, FilePlanet!