Grad mal ein wenig Gegoogelt

1.
Mumble ist in jeder Hinsicht mit TeamSpeak vergleichbar, da es offenbar als freie Alternative zu TeamSpeak konzipiert wurde.
Hier mal ein paar Infos von der Mumble-Website:
Zitat:
Mumble is a low-latency, high quality voice chat application intended for use alongside computer games.

Its primary features are:

* Very low latency.
* Denoising of audio.
* Echo cancellation to enable playing on surround speakers.
* Automatic volume control so all players are equally loud.
* Positional audio with supported games (the voice of players comes from their direction ingame).
* Unlimited number of channels with as deep a nesting as desired.
* Per-channel groups and access control lists.

The design goal of mumble is to have audio quality just as good as if you were sitting in the same room, a goal that has largely been achieved. Current emphasis is on interchannel communication, to enable a mumble-connected community to work better than if they were in the same room.

und zweitens noch ein kleiner Vergleich zwischen Mumble und TS
http://mumble.softonic.de/vergleich/...amspeak-server