Chapter 4-Additional Conferencing Information
Polycom, Inc. 4-23
Content Display on Legacy Endpoints
When Contents is sent to legacy endpoints, their video layout automatically changes to a
“Content layout” which is defined by the system flag
LEGACY_EP_CONTENT_DEFAULT_LAYOUT and the Content is shown in the larger/top
left (“speaker”) window. The video layouts of the other conference participants do not
change.
The switch to the Content layout occurs in the Auto Layout, Presentation Mode, Lecture Mode
and when a layout is selected for the conference. However, in Lecture Mode, when Content is
sent to legacy endpoints, when switching to the Content layout, the Content is shown in the
“lecturer/speaker” window and the lecturer is show in a second window. If the layout
contains more than two windows, all other windows will be empty. All other participants
will see the lecturer in full screen.
In Same Layout mode, Content cannot be sent to legacy endpoints.
The LEGACY_EP_CONTENT_DEFAULT_LAYOUT Flag default is set to a layout of 1+4
where the Content is shown in the large window and the other conference participants are
shown in the small windows. This default value can be changed in the System Configuration.
When Content is stopped, the layout of the legacy participants returns to the last video
layout seen prior to the Content mode.
The Legacy participants can change their layout using Click&View. In such a case, the
Content is forced to the “speaker” window.
The Collaboration Server user can also change the layout for the participants the legacy
endpoints (selecting personal layout).
When forcing a video participant to the Content window (instead of Content), the Content
display can be restored only by selecting any other video layout.
Interoperability with Polycom CMA and DMA
The CMA uses the Profiles that are stored in the Collaboration Server. If the Send Content to
Legacy Endpoints option is enabled in the Conference Profile, this option will be enabled in
the conference started from the CMA that uses that Profile. However, the CMA does not
display an indication that this option is enabled for the conference.
A new conference can be started on the DMA using a Conference Profile that is defined on
the Collaboration Server or by defining all the conference parameters. The Send Content to
Legacy Endpoints option can be enabled only in the Conference Profile defined in the
Collaboration Server, therefore, to include this option in the conference started on the DMA
use an Collaboration Server existing Profile. However, the DMA does not display an
indication that this option is enabled for the conference.