Theres a relatively new competitor to Teamspeak called Discord that we are going to be switching over to.
You can join here: https://discordapp.com/invite/0Y6JFzb42E4jNQLp?utm_source=Discord%20Widget&utm_medium=Connect
I would recommend downloading the Desktop App. You can find it here:https://discordapp.com/
There is also a web-based interface, and a phone app as well!
Once you connect, start playing with some settings. You can turn on push to talk, turn off notifications, and create your own chat/voice channels.
It has persistent chat; meaning you can go away from your PC and come back and read all the stuff you missed. It has many additional features on top of the old TS stuff, and also does everything TS did (but looks and sounds better). I think the change will be an overall improvement to the community and once you get used to the change be very happy.
Post if you have any questions!