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Chapter 7 - Conference Types
7-25
For example, in a conference defined with a line rate of 768 Kbps, a
participant with a line rate of 128 Kbps connects as Secondary (audio only)
Participants attempting to connect at rates below the set minimum threshold
are connected as Secondary in order to maintain the video quality of the
conference. Table 7-1 lists the required minimum line rates that participants
may use to connect to a Conference On Port.
Conference On Port setting is suitable for large Continuous Presence
conferences (up to 128 participants for a single video card) for which you do
not have enough available video resources or if several Continuous Presence
conferences are running on the MCU at the same time and you do not have
enough video resources to run all of them simultaneously.
Lecture Mode
Lecture Mode enables automatic switching between the conference
participants in the speaker window, allowing the conference speaker to see all
the other conference participants (including Continuous Presence layout)
while s/he is speaking. The lecturer is the only one seen by all the other
participants throughout the conference, in full screen.
Table 7-1: Conference On Port line rate - minimum thresholds
Defined Conference
Line Rate (in Kbps)
Minimum Participant Line Rate Necessary for Video
Connection (in Kbps)
128 Participants will connect with video if a video session
can be established.
256 128
384 128
512 256
768 384
1920 768
• Conference On Port is limited to 128 participants with a single video card.
• Conference On Port is available only with the Video+ card.
• In a Conference on Port, the Lecture Show function is disabled.