From https://increment.com/on-call/when-the-pager-goes-off/ https://increment.com/on-call/when-the-pager-goes-off/ : Slack uses its own product for all coordin

From https://increment.com/on-call/when-the-pager-goes-off/ https://increment.com/on-call/when-the-pager-goes-off/ : Slack uses its own product for all coordination during incidents and outages, so what happens when it goes down? “To the best of our ability, we use Slack,” says Richard Crowley, Director of Operations at Slack, “[but] If we’re really having a bad day, we use Skype.”