Voice Quality Monitoring (Vqmon) - Polycom CX5500 Administrator's Manual

Polycom CX5500 Unified Conference Station Administrator's Guide
Use the table IEEE 802.1p/Q
from 0 to 7. The user_priority can be configured specifically for RTP packets and call control
packets, such as SIP signaling packets, with default settings configurable for all other packets.
IEEE 802.1p/Q
Central Provisioning Server
Set the user priority for packets without a per-packet protocol setting
(including 802.1p/Q)
Web Configuration Utility
To set the user priority for 802.1p/Q packets, navigate to Settings > Network > QoS and expand the Other
Protocols menu.

Voice Quality Monitoring (VQMon)

You can configure the phones to generate various quality metrics you can use to monitor sound and
listening quality. These metrics can be sent between the phones in RTCP XR packets, which are
compliant with RFC 3611—RTP Control Extended Reports (RTCP
collector as specified in draft RFC draft-ietf_sipping_rtcp-summary-02. The metrics can also be sent as
SIP PUBLISH messages to a central voice quality report collector.
A license key is required to activate the VQMon feature on all phones. For more information on VQMon,
contact your Certified Polycom Reseller.
You can enable three types of voice quality reports:
●
Alert Generated when the call quality degrades below a configurable threshold.
●
Periodic Generated during a call at a configurable period.
●
Session Generated at the end of a call.
You can generate a wide range of performance metrics, the parameters for which are shown in
Quality Monitoring (VQM). Some are based on current values, such as jitter buffer nominal delay and
round trip delay, while others cover the time period from the beginning of the call until the report is sent,
such as network packet loss. Some metrics are computed using other metrics as input, such as listening
Mean Opinion Score (MOS), conversational MOS, listening R-factor, and conversational R-factor.
Voice Quality Monitoring (VQM)
Central Provisioning Server
Specify the warning threshold for alerts
Enable the generation of quality reports
Specify the server address and port
Enable the generation of RTCP-XR packets
Polycom, Inc.
to set values. The 802.1p/Q user_priority field can be set to a value
template >
features.cfg >
features.cfg >
features.cfg >
features.cfg >
template > parameter
site.cfg > qos.ethernet.other.user_priority
XR). The packets are sent to a report
parameter
voice.qualityMonitoring.collector.alert.*
voice.qualityMonitoring.collector.enable.*
voice.qualityMonitoring.collector.server.x.*
voice.qualityMonitoring.rtcpxr.enable
1.1.0
Voice
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