Cisco Unified Communications is a comprehensive IP communications system of voice, video, data, and mobility products and applications. It enables more effective, more secure, more personal communications that directly affect both sales and profitability. It brings people together by enabling a new way of communicating-where your business moves with you, security is everywhere, and information is always available...whenever and wherever it is needed. Cisco Unified Communications is part of an integrated solution that includes network infrastructure, security, mobility, network management products, lifecycle services, flexible deployment and outsourced management options, end-user and partner financing packages, and third-party communications applications.The Cisco MCS 7845-H2 Media Convergence Server is a high-availability server platform for Cisco Unified Communications solutions. The Cisco MCS 7845-H2 is an integral part of a complete, scalable architecture for a new generation of high-quality IP voice solutions that run on enterprise data networks. It delivers the high performance and availability demanded by today's enterprise networks and represents an innovative solution that is easy to deploy and highly cost-effective. At only 2 rack units (2RU) high, the Cisco MCS 7845-H2 packs tremendous power in a low-profile chassis that minimizes rack space. The Cisco MCS 7845-H2 runs a variety of Cisco Unified Communications applications, such as Cisco Unified Communications Manager (formerly known as Cisco Unified CallManager).