The Cisco MCS 7845-H1 Media Convergence Server is a high availability server platform for Cisco Unified Communications solutions. An integral part of a complete, scalable architecture for a new generation of high-quality IP voice solutions that run on enterprise data networks, the Cisco MCS 7845-H1 delivers the high performance and availability demanded by today's enterprise networks and is easy to deploy and highly cost-effective. At only 2 rack units (2RU) high, the Cisco MCS 7845-H1 packs tremendous power in a low-profile chassis that minimizes rack space. The Cisco MCS 7845-H1 runs a variety of Cisco IP Communications applications, such as Cisco CallManager.This server is designed for use with Cisco Unity Connection.