Cisco IP PBX review

Cisco Unified CallManager is a scalable, distributable, and highly available enterprise IP telephony call processing solution. It extends enterprise telephony features and capabilities to packet telephony network devices, such as IP phones, media processing devices, VoIP gateways, VoIP Phone Systems 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 thirdparty servers. Cisco Unified CallManager Version 5.0 enhances application delivery through the support of line side SIP and SIP trunk-side enhancements. These enhancements facilitate increased interoperability with third-party applications and devices, and provide the foundation for supporting innovative new presence-based applications. In addition, Cisco Unified CallManager 5.0 simplifies deployment and management by supporting a Linux-based appliance model implementation. This version also features networking and administration enhancements, including support for Cisco RSVP Agent which enables more efficient use of networks.