A new feature in the upcoming TeamTalk v5.4 release is a new login system which can be used as an alternative to Facebook logins.
To try it out first download the latest TeamTalk v.188.8.131.5264 beta:
TeamTalk v184.108.40.20664 for Windows (Installer)
TeamTalk v220.127.116.1164 for Windows (Portable)
TeamTalk v18.104.22.16864 for macOS
TeamTalk v22.214.171.12464 for Android
TeamTalk v126.96.36.19964 for iOS
The new login system is called BearWare.dk WebLogin and you create your own login here.
Once you’ve created your login you go to Preferences in TeamTalk app and set up your BearWare.dk WebLogin.
The new login system has been made because many of the public TeamTalk servers suffer from spam attacks and abusive users. With this new login system it will be easier to block unwanted users from the public servers.