I can't remember if MCPvP had a Team speak server, but Brawl.com and many other servers certainly do, as it's a great way of communicating with players and building a stronger community.
HClewk created the community ages back but no-one made an official post for it, so here it is
To join this community, use the link: https://discord.gg/mKrwW
What Is Discord?
Discord is, in it's own words, an:
All-in-one voice and text chat for gamers that’s free, secure, and works on both your desktop and phone. Stop paying for TeamSpeak servers and hassling with Skype. Simplify your life.
How Do I Make An Account?
When trying to connect to the channel, you'll be asked to log in. Click register to set up an account. There is also a small tutorial that is worth reading as it explains some of the features and how to make the best of the software.
Who are the staff?
Everyone who you'd expect:
Thanks for your time, looking forward to seeing you on Discord!