I created a Discord Server that everyone can use to chat. Discord is basically the same as TeamSpeak, has a running chat log, private message and is free. Discord has desktop and mobile apps too.
The main Discord site is here: https://discordapp.com/
You can download the app here: https://discordapp.com/apps
Here are the invite links to the various channels. They should be permanent, but let me know if you have a problem.
Some of the Text Channels
If you want your own voice channel for your squad let me know and I’ll set one up.
If you want to send me a direct message, you can click on the people icon in the upper left and start a private conversation.