The Cisco MCS 7828-I4 Unified Communications Manager Appliance is a high-availability appliance platform used for Cisco Unified Communications Solutions. An integral part of a complete, scalable architecture for a generation of high-quality IP voice solutions that run on enterprise data networks, the Cisco MCS 7828-I4 is an easily deployed, cost-effective solution. It offers tremendous power in a low-profile chassis that minimizes rack space while providing drive redundancy for higher availability.