The article provides instructions on how to build a protected conference line using Twilio Studio in just a few minutes. The process involves creating a flow, setting up the studio widgets, and configuring the Twilio number. A customer can call the Twilio number, hear a greeting, enter a PIN, and join the conference bridge. If they enter the wrong PIN, they will be prompted to re-enter it. The article also provides an example of how to import a pre-built flow for a protected conference line, allowing developers to quickly get started with building their own solutions.