Did you know ringtones in the PagerDuty mobile app are one of the most-requested features customers contact us about? And have you ever wondered what makes a good ringtone and how we come up with them? Imagine the following: You’re on an on-call rotation with no end in sight. There might be a trusted responder you can page in for help, but they’re already burnt out. The Incident Commander won’t be any assistance, because you are the Incident Commander.