The text discusses how to integrate SMS capabilities into a SAP Cloud Application Programming Model (CAP) application using Twilio. The process involves setting up a CAP project, installing required dependencies, and defining an action that listens for incoming orders. When the stock of a book reaches a certain threshold, it sends a message to the bookshop manager's phone with instructions on how to restock. The manager can respond by sending "Yes" or "Yes, order 60 additional books", which triggers the application to update the database and inform the manager of the new stock level. The application also uses ngrok to open a tunnel from the local port to the internet, allowing the Twilio servers to receive messages and respond accordingly.