On-Call Manager is the configuration page for everything pager-related. Rotations, escalation chains, quiet hours, hand-off times, override windows. Changes are versioned, reviewed, and visible in audit. The on-call paying you at 3am has the right schema behind it.
Three rotation patterns built in. Weekly: one person per week, hand-off Monday morning. Daily: one person per day. Follow-the-sun: rotation across regions so the person on-call is always in business hours. Custom patterns supported via cron expressions for the rare cases that do not fit the templates.
Each rotation has a 3-tier escalation chain by default: primary, secondary, tertiary. A page that is not acknowledged in the configured window escalates to the next tier. Default: 5 minutes for tier-1 escalation, 10 minutes for tier-2. Tunable per service tier; sub-1-minute escalations are supported for tier-0 services.
Quiet hours let an engineer mark windows where they cannot take pages (a planned event, vacation, parental leave). Overrides automatically cover them. Overrides are visible in advance so coverage is never a surprise. Overrides are a first-class object in the rotation, not a hack.
On-Call Manager logs every config change (who, what, when), every page (which alert, which on-call, which severity), and every acknowledgment (timestamp, response time). The data feeds Timeline Analytics directly, and the audit log is part of SOC2 export. No more "I think I was on-call that week."
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Every change tracked, every page logged. Disputes about "who was on" stop happening when the page tells you.