Does the app make use of 3G while the device is connected to a WiFi network? February 05, 2020 09:06 Updated Follow No it doesn't. TeamSpeak does not make use of 3G while connected to a WiFi network. Related articles How many servers can I have? How do I connect to a server? Can I use my Bluetooth headset with the TeamSpeak 3 app? Comments 0 comments Please sign in to leave a comment.