Velocity
You'll need extra ports for this tutorial. 1 for each server with voicechat plugin.
1. Every server on the same node
On The Backends:
Do everything statedDownload hereSimpleVoiceChat forBukkit
Go ofto yourthe backend"plugins" serversfolder and upload it.
Restart the server.
Inside the "plugins" folder, you will find a "voicechat" folder. Click on it.
Open the "voicechat.properties" file.
On line 5 you'll find the port variable. Set it to the additional port's value
On The Proxy:
Install SimpleVoiceChat for Velocity
The plugin will automatically detect the port of each voice chat server and will forward everything to the correct destination.
2. Servers on different nodes
Follow the steps for "Every server on the same node" and:
set voice_host on the backend servers to their (the backend's) actual IPv4