Integrate Phone Calls and WhatsApp With OpenAI

This article guides developers in integrating the Vonage Voice API and OpenAI API to create an application that receives a prompt from a user via phone call, sends it to a generative AI service, and then sends a response back to the user with the Vonage Messages API. The application uses GitHub Codespaces for deployment and can be customized by editing the starter code provided in the repository. To get started, developers need to create a new Vonage app, generate an API key and private key, and install the necessary dependencies using npm and Vonage CLI. They also need to configure the OpenAI API, which includes generating an API key and setting up the Images API to generate images based on user prompts. The application uses the Nexmo Call Control Object (NCCO) to interact with the Vonage Voice API and the Vonage Messages API to send messages over WhatsApp. Once deployed, developers can test the application by calling a linked phone number and sending a message to receive a response from the bot.