API Live Call Control Framework

This project demonstrates the use of VAPI's live call control features to monitor and interact with ongoing calls in real-time. With this framework, you can listen to live calls and send prompts to guide your agents without interrupting the flow of conversation.

⚠️ Disclaimer

This project is for educational and internal use only. Monitoring or recording calls without explicit or implied consent from both parties is illegal. Ensure you adhere to all legal and ethical standards when using this tool.

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Features

• Live Call Monitoring: Listen to ongoing calls in real time using WebSocket audio streaming.
• Call Control: Inject messages or commands to guide agents during live calls.
• Audio Playback: Low-latency audio processing in a browser environment using AudioWorkletProcessor.
• Interactive Web Interface: A simple webpage to facilitate monitoring and call control.

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Getting Started

Follow these steps to set up and run the project:

1. Clone the Repository

git clone https://github.com/<this-repo-url.git>

2. Navigate to the Project Directory

cd your-project-folder

3. Install Dependencies

npm install

4. Configure the Project

Open the config.js file and input your VAPI API key and phone number ID:

module.exports = {
  apiKey: "your-vapi-api-key",
  phoneNumberId: "your-vapi-phone-number-id",
  apiBaseUrl: "https://api.vapi.ai",
};

5. Configure the Server

In src/server.js, specify the server URL. By default, it runs locally:

const port = 8000;
app.listen(port, () => console.log(`Server running on http://localhost:${port}`));

6. Run the Server

node src/server.js