You need to enable Push to Talk in your settings and after that you need to assign a hotkey. Just click on the Box with the text “No Hotkey Assigned” and select a key which you then need to press when you wanna talk.
Background Story:
The Server you joined forces you to use Push To Talk method. If you have a way to reach out to one of the Admins they might give you a Group or remove the Permission so that Push To Talk is not forced on you.
TS5 still ignores the request from the server and therefore you are able to talk in TS5 but not in TS3
→ Bug report of this behaviour VAD Doesn't comply with Force Push To Talk Channel - #2 by TS.ChrisR
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