Uptime matters, but so do your people. At Intercom, keeping our product working well at all times is critical to the success of our business. This means having people on-call around the clock. However, as we grew, we realised that we had ended up with an on-call setup that we weren’t proud of. We decided to solve these problems by creating a virtual team that would take over out-of-hours on-call work, consisting of volunteers, not conscripts, from across the engineering organisation. This talk goes into the process we applied, the positive impact to our on-call, and lessons learned.