My only other comment is that when you go to Users, and then select "On-Call Now", it shows the escalation policy, and again not the on-call schedule linked to that escalation policy. So for example, one might see a couple people listed as on call for each escalation policy but it doesn't at all indicate on that screen which schedule they're on call for. If I wanted to manually use that screen to contact whoever the primary on call for networking is, I'd have no way of knowing who to contact.