Scalable, Distributable, and Highly Available

Cisco Unified CallManager software is the call-processing component of the Cisco Unified Communications system. It is a scalable, distributable, and highly available enterprise IP telephony call-processing solution.

Cisco Unified CallManager extends enterprise telephony features and capabilities to packet telephony network devices such as IP phones, media processing devices, voice over IP (VoIP) gateways, and multimedia applications. Additional services such as unified messaging, multimedia conferencing, collaborative contact centers, and interactive multimedia response systems are made possible through Cisco Unified CallManager open telephony APIs. Cisco Unified CallManager is installed on the Cisco Media Convergence Server 7800 Series of server platforms and selected third-party servers.

Cisco Unified CallManager includes the following features:

·    Highly scalable, supporting up to 30,000 lines per server cluster

·    Ability to support a full breadth of communications features and applications, including SIP-based applications

·    Highly available for business continuity, supporting multiple levels of server redundancy and survivability

·    Support for a broad range of phones to suit varying user requirements

·    Choice of operating system environments: Windows server-based implementation or Linux-based appliance model implementation