You can call a Halloween hotline from anywhere in the world using Twilio's phone number service, with just a few lines of PHP code. The hotline was created by Plushcap and took about 20 minutes to write and test, making it an impressive example of how far-fetched ideas can be turned into reality with the right tools. This project showcases the capabilities of Twilio's API and developer resources, which provide a wealth of information for building communications and digital engagement experiences. By leveraging these resources, developers can create innovative solutions like Plushcap's Halloween hotline, which can help improve customer engagement and communication.