Polycom DOC2560B Video Switching, Multiple Switching Modes, VSW mode conferencing is defined by

Chapter 1-System Overview

Additional video layouts have been created to give Telepresence operators more video layout options when configuring TPX room systems. These additional video layout options are available for selection when Telepresence is selected in the conference profile.

Multiple Switching Modes

If the number of participants is higher than the number of video windows in the selected layout, switching between video participants can be performed in one of these modes:

•Voice activation

•RMX user forces participants to selected video window

•Lecture Mode - The lecturer is viewed in full screen by all conference participants, while the audience is “time-switched” in the speaker’s view

•Presentation Mode - When the speaker’s presentation extends beyond a predefined time, he/she becomes the current lecturer and the conference switches to Lecture Mode

Video Switching

In Video Switching (VSW) mode all participants see the same video picture (full screen). Only one CIF video resource is used for each connection.

VSW mode conferencing is defined by:

•Conference Line Rate setting in the conference profile

—All endpoints must connect to the conference at the same Line Rate. Line rates range from 192kbps to 6Mb (8Mb with MPMx). The RMX will always connect participants at the highest possible video quality the is supported by the conference Line Rate.

•Endpoint capabilities

—Compliant endpoints can connect to conferences at resolutions of up to 1920 x 1080 pixels (1080p).

The video quality for the conference is determined by the Highest Common Mechanism and is based on the endpoint with the lowest capabilities that is connected to the conference. The Highest Common Mechanism enables the system to dynamically select the best video quality as endpoints connect to and disconnect from the conference.

1-6