The Cisco MCS 7825-I4 Unified Communications Manager Appliance for Cisco Unity Connection is an integral part of a complete, scalable architecture for a new generation of high-quality unified communications solutions that operate on enterprise data networks. This powerful platform delivers the high performance and availability that today's enterprise networks demand. The server appliance is preinstalled with an operating system and Cisco Unity Connection application. Cisco Unity Connection is fully operational upon startup, requiring entry of just a few configuration variables.