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4-1
4
Conference Profiles
A conference profile is used to pre-define the basic parameters for conference
scheduling, such as the bandwidth, encryption, and video quality. All
conferences will be created on the basis of conference profiles. By saving
conference profiles on the RMX 1000, users can conveniently and rapidly
schedule new conferences without performing repeated configurations.
The system is shipped with five default conference profiles as shown in the
table below.
Table 4-1 Default Conference Profiles
Profile Name Parameters
Default_768_CIF_H264Content
(Default Profile)
With H264 Content
768_4CIF_H264Content 4CIF, H264 with H264 Content
384_CIF_H264Content 384 CIF with H264 Content
384_CIF_H263Content 384 CIF with H263 Content
2M_720p_H264Content
(Appears only if the H.264 720p
option is activated.)
2M 720p with H264 Content
The following parameters generally decide the video conference quality:
• Bit Rate - The transmission rate of the audio and video streams. The
higher this value is, the better the displayed video quality.
• Audio Algorithm - The audio compression algorithm determines the
audio quality of the video conference.
• Video Protocol, Video Format, and Frame Rate – These parameters
define the quality of the video picture. When an endpoint is connected to
the conference, it will select a video capability based on the video
parameters set for the conference. For example, if the video protocol for
the conference is H.264, an endpoint that supports the H.264 protocol
will select H.264 for video-coding when it connects to this conference.
The following features are commonly used to define a conference:
• H. 239 Dual-stream – An H. 239 compliant endpoint can simultaneously
send and receive two channels of conference video streams: dynamic
conference video and PC screen content. The endpoints participating in
the conference must use the same bit rate, protocol, and resolution in
order to view the PC contents. Endpoints that do not support H.239 can