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Cisco Cisco WebEx Meeting Center WBS30 White Paper

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© 2015 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information. 
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WebEx Data Share 
Cisco WebEx services create data streams that vary depending on the type of application being shared, complexity 
of the graphics, use of voice over IP (VoIP), use of video, and other factors. WebEx services typically create 
network traffic when users actively share slides, desktop, and video; or use VoIP. Simply viewing a slide 
presentation does not generate any activity in the meeting and transmits very little network traffic. Intense activity, 
such as changing a PowerPoint slide, generates intermittent spikes in network traffic, with a return to low 
bandwidth use while there is no activity or no changes on the shared screen. WebEx data sharing provides up to 
five frames per second (fps) refresh rate, requiring presenters to use the Streaming Video Share feature for sharing 
video from their computers (refer to the next section for details). The Data Share or Presentation Share features 
should not be used for streaming a video file during a meeting. Figure 1 illustrates how to share your desktop. 
Figure 1.    How to Share Your Desktop 
 
WebEx Video 
Cisco WebEx Video allows you to share video by using the web cam attached to your PC or Mac machine, or you 
can share and receive it on some mobile devices. High definition (HD) with resolution up to 720p is now available 
in Cisco WebEx Meeting Center and Training Center, and high quality (HQ) with up to 360p resolution is available 
in other centers. You can review details about WebEx web cam video usage options and supported hardware in 
this section. Table 1 lists our video products and their features, and Table 2 lists the video resolutions that WebEx 
Video supports. 
Table 1. 
High-Quality and High-Definition Cisco WebEx Video At A Glance 
 
High-Definition Video 
High-Quality Video 
Products 
●  Cisco WebEx Training Center (WBS28SP4 
or later) 
●  Cisco WebEx Meeting Center 
●  Cisco WebEx Support Center 
●  Cisco WebEx Event Center 
Resolutions 
Maximum resolution (pixels) Maximum 
frame rates (per second) 
 
●  720p (1280x720) 
 
●  360p (640x360) 
●  30 fps 
●  30 fps 
Transport protocol 
●  SSL 443 
●  UDP port 9000 
●  SSL 443 
●  UDP port 9000 
Maximum number of participants 
●  500 (HQ and HD) 
●  500 (HQ; WebEx Training 
●  Center only) 1000 in EC 
Video codec 
●  H.264 
●  H.264