Advanced Conferencing Profile Features
Polycom, Inc. 45
It affects only AVC-based and audio only endpoints (non-SAC endpoints). It does not affect SVC-based
endpoints.
If the noisy endpoint is SVC-based, its audio channel is not sent to the AVC-based endpoints, but it is sent
to the other SVC-based endpoints.
Typically, the NoiseBlock feature is enabled by default based on the interaction of two configuration
elements:
● The ENABLE_SELECTIVE_MIXING flag value (enabled by default) and
● The Auto mute noisy endpoints setting (enabled by default)
Note that NoiseBlock does not guarantee exact identification of non-speech originated sounds and when
the endpoints are automatically muted by the MCU, no indication is displayed in RMX Manager or at the
endpoint.
● When upgrading from a version prior to 8.1, the Auto mute noisy endpoints option is not automatically
selected.
In Profiles created after the upgrade, the Auto mute noisy endpoints option is automatically selected.
● You need to manually add the ENABLE_SELECTIVE_MIXING system flag, and enable/disable the
function by change the value to YES/NO. MCU reset is not required when changing the system flag
value.
● If your conferencing environment includes Polycom DMA, the conferences started from the DMA do
not include the NoiseBlock parameter as it is not part of the DMA Profiles. In such a case, when the
parameter setting is unknown, the system enables/disables the NoiseBlock according to the system
flag setting - if the flag is set to YES, it is enabled in the conference.
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