On-call schedules ensure that there's someone available day and night to fix or escalate any issues that arise. Using an on-call schedule helps keep things running smoothly. These on-call workers can be anyone from nurses and doctors required to respond to emergencies to IT and software engineering staff who need to fix service outages or significant bugs. Being on-call can be challenging and stressful. But with the proper practices in place, on-call schedules can fit well into an employee's work-life balance while still meeting the organization's needs.