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This page covers how the person on call finds out and how they acknowledge. To set up schedules and rotations first, see Set up on-call.

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Choose how you are notified

You are told over up to five channels. Each person sets up their own under Account. On an iPhone or iPad, push needs iOS 16.4 or later and a Home Screen install: in Safari tap Share, then Add to Home Screen, open SRE Agent from its icon and enable push there. Use Send a test on each card to check a channel. The Pushover and Telegram cards appear on Account once they are available for your organization.
Push and Telegram are nudges, not pagers. If a page must wake you, add Pushover, or keep Slack or email as a backup.
If you are on call and a channel is missing a link, the On-call page and your Account page say exactly what to fix.

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Per-moment steps and the organization minimum

Under Account, On call, you choose which channels fire, and after how many minutes, for each moment: you are paged, a page is repeated because nobody acknowledged it, your shift is about to start or has ended, an override puts you on or takes you off call, an override that covers you changes, and (for admins) a schedule will have nobody on call. An admin sets the minimum for everyone under Settings, Notifications, On-call policy, then Save on-call policy. By default a page goes out by push and Slack DM at once and by email after 5 minutes. You can add channels or earlier delays, but you cannot remove what the policy requires. Email is always part of it, and a page can never be turned off. The same card sets how often an unacknowledged page repeats and how many times, how long before a shift the incoming person is told, and how far ahead to warn about gaps.

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Quiet hours

Under Account, On call, tick Hold reminders and override notices during quiet hours and set From and until in your timezone. The window can cross midnight. Quiet hours never hold a page, including repeated pages.

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Acknowledge a page

Acknowledge from wherever the page reached you: the Acknowledge button on a push notification, in the Pushover app, in the Telegram message, on the Slack DM or channel message, or on the alert page. Acknowledging stops the repeats and rewrites the Slack and Telegram messages to show who took it. You must still be an active member with a role that can acknowledge alerts.

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See what was sent

An alert page shows a line such as Notified via push 21:03, Slack DM 21:05. The On-call page lists the latest notifications with who, channel, status, reason and time. A step that could not send (no device, no linked chat, no linked Slack account) is shown as skipped with the reason, and the next channel still goes out.