A tutorial on creating a notification system in ServiceNow using Twilio's SMS and voice services, showcasing how to set up the integration, configure alerts and notifications, and use ServiceNow Business Rules to automate task-based notifications. The process involves setting up a Twilio account, configuring ServiceNow Notify, importing phone numbers, updating notify properties, and integrating with ServiceNow Workflow Designer for alerting and notification functionality. Additionally, business rules can be used to send custom messages based on incident priority and assignment status, enhancing the notification system's flexibility and automation capabilities.