Polycom EDOC2501b Manual De Usuario

The following diagram illustrates an example of the various devices and bandwidths that 

can be used in an SVC-based video conferencing environment:

Using the SVC-Based Conferencing Solution

The Polycom RealPresence SVC-Based Conferencing Solution is a powerful and innovative 

video conferencing mode that, in some cases, provides high-quality video streaming 

between endpoints with lower resolutions, frame rates, and line rates. SVC conferences also 

provide higher video capacity, better error resiliency and lower latency. 
Using the SVC video protocol, SVC conferences provide video bit streams at different 

resolutions, frame rates and line rates to SVC-enabled endpoints with various display 

capabilities and layout configurations. 
In the SVC-based conference, each SVC-enabled endpoint transmits multiple resolution and 

temporal layers, to the Polycom® RealPresence® Collaboration Server (RMX) or the 

Polycom® RealPresence® Collaboration Server 800s, enabling each endpoint to transmit at 

different resolutions and frame rates such as 720p at 30fps, 15fps, and 7.5fps, 360p at 15fps 

and 7.5fps, and 180p at 7.5fps. 
Polycom SVC-enabled endpoints (Polycom® RealPresence® Desktop and Polycom® 

RealPresence® Mobile) enable video conference layouts to be automatically assembled by 

the endpoint giving more flexibility to the endpoint. This enables the RealPresence 

Collaboration Server to send or relay the selected video streams to the endpoints without 

sending the entire video layout to the endpoints.
The video streams displayed in the conference layout on each endpoint is obtained from the 

different streams received from each of the endpoints displayed in the layout. Depending on 

the size of the video cell in the configured layout, the endpoint requests the video stream in 

the required resolution from the RealPresence Collaboration Server. The higher the display 

quality and size, the higher the requested resolution will be sent to the endpoint. The 

endpoint creates the displayed layout from the different video streams it receives.