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Polycom RMX 2000 Administrator’s Guide
17-59
SIP Dial-in Busy Notification
When the system flag
SEND_SIP_BUSY_UPON_RESOURCE_THRESHOLD is set to YES (NO is
the default), it enables the RMX to send a busy notification to a SIP audio
endpoint or a SIP device when dialing in to the RMX whose audio
resource usage exceeded the Port Usage threshold.
The RMX will send a SIP busy response to SIP audio endpoints when:
• The system flag
SEND_SIP_BUSY_UPON_RESOURCE_THRESHOLD is set to YES
(NO is the default)
• The port usage threshold for Audio resources is exceeded. The
threshold is defined in the Setup > Port Gauge dialog box.
When the flag is set to YES, the system will allow SIP audio endpoints to
connect to the MCU until the Port Usage threshold is reached. Once this
threshold is exceede, the SIP audio endpoints will not be able to connect,
ensuring that the remaining system resources can be used by all other
connections, including SIP video, H.323 cascaded links and ISDN video.
When the call is rejected by the MCU because of lack of resources, the
appropriate indication will be sent by the MCU to the SIP audio endpoint.
For example, if the Port Gauge threshold is set to 80%, when 80% of the
Audio resources are used, the system will not allow additional SIP audio
endpoints to connect and will send a busy notification to the endpoint.
This does not affect the video resources usage.