Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series IP Phones8445. Click OK to reboot the phone.The VQ-RTCPXR mechanism, compliant with RFC 6035, sends the service quality metric reportscontained in SIP PUBLISH messages to the central report collector. Three types of quality reportscan be enabled: Session: Generated at the end of a call. Interval: Generated during a call at a configurable period. Alert: Generated when the call quality degrades below a configurable threshold.A wide range of performance metrics are generated in the following three ways: Based on current values, such as jitter, jitter buffer max and round trip delay. Covers the time period from the beginning of the call until the report is sent, such asnetwork packet loss. Computed using other metrics as input, such as listening Mean Opinion Score (MOS-LQ)and conversational Mean Opinion Score (MOS-CQ).To operate with central report collector, IP phones must be configured to forward their voicequality reports to the specified report collector. You can specify the report collector on aper-line basis.Users can check the voice quality data of the last call via web user interface or phone userinterface. Users can also specify the options of the RTP status to be displayed on the phone userinterface. Options of the RTP status to be displayed on the web user interface cannot bespecified.ProcedureVQ-RTCPXR can be configured using the following methods.CentralProvisioning(Configuration File).cfgConfigure the generation of session packets.Parameter:phone_setting.vq_rtcpxr.session_report.enableConfigure the generation of interval packets.Parameters:phone_setting.vq_rtcpxr.interval_report.enablephone_setting.vq_rtcpxr_interval_period
