I want a connect a group of people playing Minecraft (or other games) on different devices (Android tablet, iPad, phone, Nintendo Switch) to same audio chat so they can talk to each other.<p>So a device which can play real time audio and transmit audio when either button pressed or all the time based on detected voice levels.<p>Any idea as to which hardware would be cheap to use?<p>I thought about using Asterix with a SIP phone or similar. The phone could be dirt cheap but I would need to host the Asterix server and configure a conference room to join.<p>Other ideas? I could hack something if all I have to do is implement firmware..