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CISCO AVVID: IP Telephony

IP Telephony is the technology which allows for data, voice, and video to be transmitted over a single, IP based network infrastructure. Cisco AVVID (Architecture for Voice, Video and Integrated Data) provides the intelligent network infrastructure for today's Internet business solutions. As the industry's only enterprise-wide, standards-based network architecture, Cisco AVVID provides the roadmap for combining business and technology strategies into one cohesive model

AVVID product lineup

The following products are the key VoIP pieces in Cisco's AVVID product lineup:

Media Convergence Server: An Intel Pentium-based server running the Windows NT operating system, also known as an IP PBX.
CallManager: Software that runs on Media Convergence Server, providing PBX-like functionality, such as call control, hold, call transfer and other basic office telephone system features.
Cisco 7900 series IP phones: A variety of IP telephony client devices, such as speaker phones and XML-enabled phones that can act as Web browsing thin clients.
In-line power switch modules: Blades for Cisco's Catalyst 4000 and 6000 switch lines that can provide AC power to IP telephones, similar to the way PBXs supply power to circuit-switched phones.
Cisco Unity: Cisco's unified voice and e-mail server, which provides voice mail for CallManager servers and can work with Microsoft Exchange servers to provide end users with one mailbox for voice mail and e-mail.