https://github.com/adrenak/univoice

Info

• UniVoice is a voice chat/VoIP solution for Unity.
  • 👥 Group voice chat. Multiple peers can join a chat room and exchange audio.
  • ⚙ Peer-specific settings. Don't want to listen to a peer? Mute them. Don't want someone listening to you? Deafen them.
  • 🎨 Customize your audio input, output, and networking layers.