I will tell my point: I have a teamspeak server and I think it would be a fun idea that everyone who wants, can use it.
Join 'Lobby 2' , And i'll get right back at you, to creating your own channel.
So if you are in a party and you want to talk to your party members, you could use my teamspeak server.

The server adress is: 162.217.248.206:9993 and there is no password.

There aren't alot of slots, my TS3 server has 250

It's 500 slots.
Set at 50, depends on how many people are on.