SERVER IP: voice.pokelegends.net
(if you are having issues connecting try using bw455.teamspeak3.com)
This basic tutorial shows how to log in to a Teamspeak server
Step 1: Double-click your Teamspeak 3 icon on your desktop.
Step 2: Once the Teamspeak client is open, on the top left click on "Connections" and then click "Connect". It is the first option on the drop down box.
Step 3: A small control panel will pop up asking for an address (type voice.pokeclub.net), your nickname (your MC username). Then click connect!