Cisco Unified Communications and Service-Oriented Network Architecture
By Cisco Systems
Published July 2007; Posted July 2007
Over the past decade, the networking industry has seen a gradual trend toward service virtualization, which consolidates functions that are common across applications and virtualizes those functions in the network to be used across the enterprise. Capabilities such as multicast, encryption, load balancing, and data caching, which traditionally ran as applications on a dedicated server, have migrated to the network, where they can be shared by multiple applications that are delivered to users across multiple devices.
Cisco® has played a leading role in this innovation and in redefining the network with its Cisco® Service-Oriented Network Architecture (SONA) for integrated services. Cisco SONA delivers business solutions to unify network-based services such as security, mobility, and location with the virtualization of IT resources. By building intelligent networks, organizations can reduce complexity, decrease management costs, enhance system resiliency and flexibility, and greatly improve the usage and efficiency of networked assets and applications.
Cisco Unified Communications system is the first unified communications system built to take full advantage of converged networks and an architectural approach. It uses open standards such as Extensible Markup Language (XML), Voice Extensible Markup Language (VoiceXML), SIP/SIMPLE (Session Initiation Protocol/SIP for Instant Messaging and Presence Leveraging Extensions), HTTP, and Simple Object Access Protocol (SOAP) to virtualize voice, video, presence, and mobility services within the network. Once available within the IP fabric, these services can be delivered securely to any device, anywhere, anytime, across multiple applications - dramatically improving collaboration and transforming the user experience.
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