A Docker container that bridges phone calls to ChatGPT's voice interface. Call a phone number, and ChatGPT answers.

┌─────────────────────────────────────────────────────────────────┐
│                    Docker Container                              │
│                                                                  │
│  ┌──────────────┐    ┌─────────────────┐    ┌────────────────┐  │
│  │  PulseAudio  │───▶│   Baresip SIP   │───▶│  /alloc/       │  │
│  │  (audio hub) │    │   (phone)       │    │  call_active   │  │
│  └──────────────┘    └─────────────────┘    └───────┬────────┘  │
│         │                                           │           │
│         │            ┌─────────────────┐            │           │
│         └───────────▶│   Chromium +    │◀───────────┘           │
│                      │   KasmVNC       │                        │
│                      │   (browser)     │                        │
│                      └────────┬────────┘                        │
│                               │ CDP:9229                        │
│                      ┌────────▼────────┐                        │
│                      │   Playwright    │                        │
│                      │   (automation)  │                        │
│                      └─────────────────┘                        │
└─────────────────────────────────────────────────────────────────┘

1. PulseAudio - Virtual audio routing between browser and SIP client
2. Chromium + KasmVNC - Browser for ChatGPT with web-based VNC access
3. Baresip - SIP client for handling phone calls
4. Playwright Bot - Automation that clicks ChatGPT voice buttons on call events

1. Copy the example environment file:

   cp .env.example .env

2. Edit .env with your SIP credentials:

   SIP_USER=your_sip_username
   SIP_PASS=your_sip_password
   SIP_SERVER=callcentric.com

3. Build and run:

   docker compose up -d

4. Access the web interface at http://localhost:3000

5. Log into ChatGPT in the browser

6. Call your SIP number - ChatGPT will answer!

If not using docker compose:

docker run -d \
  --name chatgpt-voice-bridge \
  --shm-size=1g \
  --security-opt seccomp=unconfined \
  --cap-add NET_ADMIN \
  --cap-add NET_RAW \
  -p 3000:3000 \
  -p 3001:3001 \
  -p 5060:5060/udp \
  -p 5060:5060/tcp \
  -v ./config:/config \
  -e SIP_USER=your_username \
  -e SIP_PASS=your_password \
  -e SIP_SERVER=callcentric.com \
  -e SIP_TRANSPORT=tcp \
  -e SIP_OUTBOUND="sip:callcentric.com;transport=tcp" \
  chatgpt-voice-bridge

The container includes health checks for all components:

• PulseAudio daemon and virtual sinks
• Chrome debugging port
• Baresip process
• Automation bot process
• KasmVNC web interface

Check health status:

docker inspect --format='{{.State.Health.Status}}' chatgpt-voice-bridge

docker compose logs -f

# Baresip logs
docker exec chatgpt-voice-bridge cat /config/log/baresip/current

# Automation logs
docker exec chatgpt-voice-bridge cat /config/log/automation/current

docker exec chatgpt-voice-bridge pactl list short sinks

Look for "registered" in baresip logs.

• Ensure you're logged into ChatGPT in the browser
• The ChatGPT UI may have changed - check the button selectors in automation/bot.py

1. Incoming Call: When someone calls your SIP number, Baresip auto-answers
2. Call Detection: Baresip creates /alloc/call_active file
3. Voice Activation: The Playwright bot detects the file and clicks "Start Voice" in ChatGPT
4. Audio Routing:
   • Caller audio → Baresip → VirtualMic sink → Chrome (as microphone)
   • ChatGPT audio → VirtualSpeaker sink → Baresip → Caller
5. Call End: When the call terminates, the bot clicks "End Voice"

MIT