Polycom RMX 2000/4000 Administrator’s Guide

Enabling HD Video Switching

For the MCU to run HD Video Switching conferences the following criteria must be met:

The HD_THRESHOLD_BITRATE flag must be set in the System Configuration. The value of this flag is the system minimum threshold bit rate.

The HD_THRESHOLD_BIT RATE flag is responsible for negotiation only,

It does not guarantee that the endpoint will open an HD channel or transmit on an opened HD channel.

The line rate selected in the conference Profile must be the same as or higher than that specified by the HD_THRESHOLD_BITRATE flag.

The High Definition Video Switching option must be selected in the profile. For more information see "Defining Profiles” on page 1-8.

The RMX must have available resources (ports).

The endpoints must support HD.

Modifying the HD Video Switching Threshold Bit Rate

To Modify the HD Video Switching Threshold:

1Click Setup>System Configuration. The System Flags dialog box opens.

2Set the HD_THRESHOLD_BITRATE flag to the required line rate value (range 384kbps to 4Mbs, default is 768 Kbps).

3Click OK.

The MCU must be reset the MCU for flag changes to take effect. For more information see "System Configuration” on page 16-5.

Creating a High Definition Video Switching Profile

An HD Video Switching enabled Profile must be created prior to running HD Video Switching conferences.

High Definition Video Switching conferences, Entry Queues and Meeting Rooms are created by selecting an HD Video Switching-enabled Profile and must be set to the same line rate as the target conference.

To connect to an HD Video Switching conference via an Entry Queue, the Entry Queue must be HD Video Switching enabled. It is recommended to use the same Profile for both the target conference and Entry Queue.

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Polycom 2000/4000 manual Enabling HD Video Switching, Modifying the HD Video Switching Threshold Bit Rate