Polycom HDX4500

Polycom HDX4500 is a universal personal telepresence system that allows you use the latest UltimateHD technology in your existing environment of unified communications. The HDX 4500 system is made in a new form-factor, equipped with 24-inch display, 1080p camera and powerful speakers; it easy transforms any desktop computer into a multimedia communications center.

Polycom HDX 4500 is an ultra-modern desktop system for HD quality video conferencing. The most natural communication through the use of video with a resolution of 1920x1080 and using H.264 High Profile video compression codec. High-quality voice Polycom Siren 22 technology provides smooth playback of hi-fi quality stereo. As a result making a contact with colleagues anywhere in the world will be easy and natural.
Polycom HDX4500 is an ideal modern solution for offices and small meeting rooms. HDX 4500 is also distinguished by high flexibility conferencing: provides additional built-in multi-video conferencing with a simple and fast connection of the set of end terminals.

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SDP Protocols Are Used To Transmit Media Session Information

In 1998, the Internet Engineering Task Force (IETF) published the specification for a Session Description Protocol or SDP as a format that describes parameters for streaming media. The original IETF Proposed Standard was updated in 2006 as RFC 4566. Although the SDP was created as a feature of Session Announcement Protocol (SAP), it can be used with Real-time Transport Protocol, Real-time Streaming Protocol (RTSP), and Session Initiation Protocol, as well as a standalone protocol. Parameter negotiation, session announcement and session invitation are included in the descriptive sessions from the SDP protocol. Rather than transmit data like other types of protocols, an SDP negotiates between media type endpoints, format and properties involved. A session begins when a connection is established, and the session is terminated only after every endpoint is no longer participating.

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