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Polycom RealPresence Collaboration Server (RMX) 1500/2000/4000 Administrator’s Guide
4-18 Polycom, Inc.
As the resource required for sending Content to legacy endpoints is allocated on the fly,
when scheduling a reservation, in rare occasions when the MCU is fully loaded,
“Resource deficiency” may be encountered. This may prevent participants from
connecting to the conference or from Content being sent to the legacy endpoint. To
ensure resource for sending Content to legacy endpoints, add one resource to the
number of resources defined in the Reserve Resources for Video Participants field, in the
Conference Properties - General dialog box.
• Non-H.239 (legacy) endpoints receive the Content via the video channel using the same
video protocol and resolution with which they receive video.
• The highest Content resolution for legacy endpoints is:
— HD720p30 with MPMx
— HD720p5/6 with MPM+
• Once an endpoint is categorized as a Legacy Endpoint and receives the content over the
video channel, it remains in this mode without the ability to receive content over the
Content channel.
• Content cannot be sent to legacy endpoints when Same Layout mode is selected for the
conference.
• This option in not supported in Video Switching conferences.
• When Content is transmitted, the Site Name of the endpoints cannot be viewed.
• Content can be sent to legacy endpoints in gateway calls.
• When moving a legacy participant to the Operator conference, Content will not be
available to the legacy endpoint.
•An FX endpoint dialing in to an RMX with MPMx cards will receive content using
People + Content. An FX endpoint dialed out from an RMX with MPMx cards will only
receive content via the video channel using People + Content if Send Content to Legacy
Endpoints is enabled in the Conference Profile.
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.