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: Download SimpleVoiceChat Bukkit Go to the "plugins" folder 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