How to Make a Phone Call in Spring Boot with Kotlin

The tutorial discusses how to create a Spring Boot application in Kotlin that uses the Twilio Voice API to make an outbound phone call to a given contact. The prerequisites for this tutorial include Java 17, Maven or Gradle, IntelliJ IDEA, and a Twilio account with a phone number enabled for voice calls. The tutorial covers setting up the project, integrating Twilio, defining a service class that makes the outgoing call, creating an API endpoint to trigger the call, and testing the application.