The Chat Mode guide for text-only agents focuses on WebSocket connections (troubleshooting explicitly says to ensure the WebSocket connection is established) and does not describe a WebRTC path for text-only. (elevenlabs.io)
ElevenLabs’ WebRTC materials and SDK notes frame WebRTC as an audio-first transport (e.g., audio format is fixed in WebRTC mode), with no mention of text-only over WebRTC. (elevenlabs.io)
The React SDK documents textOnly mode as a lighter, no-microphone flow, but does not pair it with WebRTC; it’s presented independently of WebRTC and aligns with the WebSocket-based chat guidance. (elevenlabs.io)
Conclusion: Use WebSocket for text-only Chat Mode. WebRTC is documented for real-time voice/audio, not text-only. (elevenlabs.io)
ivory marten
lapis harbor