NOT TESTED ON REAL DEVICE - simulator only verification
Components:
- LiveKit Cloud agent deployment (julia-agent/julia-ai/)
- React Native LiveKit client (hooks/useLiveKitRoom.ts)
- Voice call screen with audio session management
- WellNuo voice_ask API integration in Python agent
Tech stack:
- LiveKit Cloud for agent hosting
- @livekit/react-native SDK
- Deepgram STT/TTS (via LiveKit Cloud)
- Silero VAD for voice activity detection
Known issues:
- Microphone permissions may need manual testing on real device
- LiveKit audio playback not verified on physical hardware
- Agent greeting audio not confirmed working end-to-end
Next steps:
- Test on physical iOS device
- Verify microphone capture works
- Confirm TTS audio playback
- Test full conversation loop
Chat screen now supports both:
- Text messaging (keyboard input)
- High-quality Ultravox voice calls (WebRTC)
Features:
- Voice call button in input bar (phone icon)
- Green status bar when call is active
- Transcripts from voice calls appear in chat history
- Voice badge on messages from voice conversation
- Mute button during calls
- Auto-end call when leaving screen
Background audio configured for iOS (audio, voip modes)
