Cisco Cisco TelePresence MCU 4510 Maintenance Manual
Joining and viewing conferences
Cisco TelePresence MCU 4.3 Product administration guide
Page 23 of 242
Video mute
Participants who have had their video muted from the web interface do not contribute video to the
conference. They will continue to contribute audio as normal, unless it is muted separately.
conference. They will continue to contribute audio as normal, unless it is muted separately.
Automatic lecture mode
Automatic lecture mode allows a lecturer to be shown in full-screen view to the students. In this mode, the
lecturer will continue to see the normal (continuous presence) view. That is, the lecturer will see the students
and not himself. When Automatic lecture mode is enabled for a conference, the MCU identifies the
loudest speaker as the lecturer. If you have configured a custom layout for the lecturer, that will override the
normal continuous presence view. For the other participants (the students), the view of the lecturer (the
loudest speaker) overrides any custom layout. You can enable automatic lecture mode for scheduled and/or
ad hoc conferences either in the conference configuration or in the relevant conference template.
lecturer will continue to see the normal (continuous presence) view. That is, the lecturer will see the students
and not himself. When Automatic lecture mode is enabled for a conference, the MCU identifies the
loudest speaker as the lecturer. If you have configured a custom layout for the lecturer, that will override the
normal continuous presence view. For the other participants (the students), the view of the lecturer (the
loudest speaker) overrides any custom layout. You can enable automatic lecture mode for scheduled and/or
ad hoc conferences either in the conference configuration or in the relevant conference template.
See
for details of how to configure automatic lecture mode.
H.243 floor and chair control
Some H.323 endpoints support a feature known as floor and chair control that is encompassed by the H.243
protocol. This is not currently supported by SIP.
protocol. This is not currently supported by SIP.
The MCU supports the following H.243 features:
n
a participant can "take the floor" in a conference. On "taking the floor" their video contribution is sent to all
conference participants as a "1 x 1 view" (full-screen view). If the active floor (temporarily or permanently)
has no video channel established to the MCU then endpoints will see their "normal" continuous presence
view; if there is a video channel from the active floor participant, everyone will see that video (except for the
person who currently has the floor), and this will override any view family or custom layout setting
conference participants as a "1 x 1 view" (full-screen view). If the active floor (temporarily or permanently)
has no video channel established to the MCU then endpoints will see their "normal" continuous presence
view; if there is a video channel from the active floor participant, everyone will see that video (except for the
person who currently has the floor), and this will override any view family or custom layout setting
n
a participant can "take the chair". On "taking the chair", a participant can:
l
nominate a "broadcaster"; that is, they can choose which participant's video will be sent to all other
participants in "1 x 1 view" (full-screen view)
participants in "1 x 1 view" (full-screen view)
l
decide to disconnect any other participant(s)
l
end the conference
Note that the ability of a participant to "take the chair" is affected by how they joined the
conference. A participant who joined the conference as a guest will not be able to "take the
chair".
conference. A participant who joined the conference as a guest will not be able to "take the
chair".
n
an endpoint can receive the names of the other endpoints in the same conference. Different endpoints act
on this in different ways.
on this in different ways.
Whether or not these features are supported in a conference depends on the individual conference settings
(
(
Conference > Add conference
). Refer to
Where a conference supports floor and chair control, or floor control only:
n
the MCU will advertise the ability to handle H.243 when establishing (and receiving) H.323 connections
n
any H.243-capable endpoint can request the floor, and all endpoints (be they chairperson or guest) will be
granted it as long as no other endpoint in that conference has already done so
granted it as long as no other endpoint in that conference has already done so
Where the conference supports floor and chair control: