Nortel BCM50 2.0 System Overview Manual

Also see for BCM50 2.0: User guide User guide Installation guide Configuration guide User guide

Contents

Nortel BCM50 2.0 System Overview Manual Manual pdf 24 page image

24 Chapter 2 System OverviewNN40020-200NN40020-200BCM50 capabilities aligned with BCM 4.0In addition to the new features introduced with BCM50, it incorporates many features that wereintroduced with BCM 4.0. These include:• "Proactive Voice Quality Monitoring"• “Ad-Hoc conferencing” on page 25• “Meridian Customer Defined Network (MCDN) Trunk Anti-Tromboning (TAT) withintegrated applications” on page 25• “Session Initiated Protocol (SIP) enhancements” on page 25• “Security enhancements” on page 26• “Terminal and mobility support” on page 28Proactive Voice Quality MonitoringThe PVQM capability provides the ability to set call-quality thresholds for IP sets receive an alertand if these thresholds are violated. This provides the ability to proactively identify voice qualityof experience (QoE) issues on a per-call basis. This, in turn, enables troubleshooting ofvoice-quality issues within the network.PVQM supports calls from an IP set to any other set or trunk. The solution is optimized with Phase2 IP sets, which support autonotification.Measured call-quality metrics include:• packet loss• inter-arrival jitter• listening R-value• RTCP round trip delayListener "R" value is a direct measure of the call quality or transmission quality, incorporating theeffects of CODEC type, packet loss, discard, burstiness, delay, and other relevant voice-qualitymetrics.With PVQM, a system-wide summary view of threshold-violation alert occurrences is maintained.Threshold violations can be sent as alarms and used by the centralized AppManager VoIPperformance-monitoring product from NetIQ to generate a system-wide view of the voice qualityof the network and help diagnose voice-quality issues. The alarms include extensive call-qualityinformation in accordance with IETF RTCP-XR RFC 3611.PVQM on BCM50:• provides the ability to monitor quality and integrity of IP-based voice networking• ia a a significant differentiator in VoIP convergence network sales with its market-leading,proactive, per-call focus• mitigates customer issues over whether the data network or the BCM is at fault whencall-quality issues situations occur• provides consistency in QoE solution across Nortel enterprise call servers to facilitatemixed network deployments