The tutorial provides a step-by-step guide on how to verify user accounts with phone call OTPs in a CakePHP application using Twilio Verify API. The process involves creating a new CakePHP project, setting up the database connection, creating a verification service, installing the Twilio PHP Helper Library, and configuring the application model and controller. Additionally, it covers creating templates for the registration, login, verification, and profile pages. The tutorial concludes with testing the application and provides resources for further learning.