PagerDuty is a tool designed to enhance incident alerting and management by offering customizable notification methods and escalation policies, ensuring that alerts are effectively communicated to the appropriate personnel. Users can tailor their contact methods, such as phone, SMS, email, and push notifications, and establish notification rules to receive alerts in a preferred manner. Escalation policies serve as a backup to re-route alerts if the primary on-call engineer fails to respond, and it is recommended to set up multiple contact methods and notification rules to avoid missed alerts. PagerDuty also implements features to reduce alert fatigue, including deduplication, bundling, and appending of alerts, ensuring that users receive fewer, more relevant notifications. Furthermore, the system automatically resolves open incidents after a set period and re-triggers alerts if an acknowledged incident is forgotten. These capabilities allow PagerDuty to minimize downtime and streamline the resolution process by directing alerts to the right on-call personnel efficiently.