Maintain a covered Cisco standard-airflow hardware configuration with continuous support availability and a four-hour onsite response target. CON-NCD4P-2248EFA provides a 24x7x4 onsite service level, combining around-the-clock support access with an onsite response for eligible events. It applies to the specified standard-airflow PA configuration rather than functioning as a hardware component itself. This service level fits infrastructure that remains operational outside standard business hours, including network closets, data-center access layers, and sites supporting always-on business applications. A four-hour onsite response target addresses incidents that require work at the equipment location, while 24x7 coverage permits service engagement during evenings, weekends, and holidays. Within Cisco support coverage options, the defining characteristic of this service is the combination of continuous 24-hour, seven-day coverage and a four-hour onsite response. That combination differs from service arrangements limited to business-hour access, next-business-day response, or remote-only assistance. Select it when the covered standard-airflow hardware requires an onsite support level aligned with time-sensitive operational recovery requirements.