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  • Real-time VOIP diagnostics, call-by-call QoS tracking now part of Fluke Networks` OptiView Link Analyzer, Pr...

Real-time VOIP diagnostics, call-by-call QoS tracking now part of Fluke Networks` OptiView Link Analyzer, Protocol Expert

Monitoring and analysis solution simplifies and improves network managers` ability to maintain high-quality VOIP service
Johannesburg, 02 Sep 2005

Fluke Networks announced today that real-time VOIP diagnostics, including call-by-call quality of service (QoS) tracking, are now part of its OptiView Link Analyzer and Protocol Expert network monitoring and analysis solution. Network managers can now see all levels of VOIP activity on their network, from very broad-based call volume and call quality to individual call channel details. This allows real-time identification, isolation and repair of call quality issues.

"Voice over IP is one of the most mission-critical applications being deployed by corporations around the globe," says Robert Finlay, Fluke Networks Product Manager. "Yet many IT managers can`t check to see if their existing infrastructure will support VOIP, and even fewer have a plan for managing VOIP once it`s deployed. Without useful monitoring and troubleshooting solutions like the new versions of OptiView Link Analyzer and OptiView Protocol Expert, call quality may cause nothing but user complaints and frustration."

The VOIP analysis features in OptiView Link Analyzer provide a real-time view of call volume and QoS for instantaneous identification of trends leading to call degradation. This enables troubleshooting before end-users are impacted. Additionally, this information can be used to track down misconfigurations in network infrastructure. The real-time capabilities provide IT professionals with continuous vision of VOIP call quality in dynamic, changing network environments.

The VOIP capabilities in Protocol Expert and Link Analyzer make it easy to view VOIP traffic in aggregate, by call or in detail by channel. While other protocol analysers provide only VOIP decodes, OptiView Protocol Expert tracks packets on a call-by-call basis while measuring important characteristics, such as jitter, dropped packets, setup and latency. This, combined with an intuitive user interface, makes it easy to access detailed information about call quality and convert these measurements into the most widely used metric for VOIP QoS, a Mean Opinion Score (MOS).

VOIP specific alarms trigger on dropped calls, setup failures, jitter, dropped packets and QoS metrics, alerting the network manager to VOIP issues before end-users call a help desk. Support for SCCP, SIP, H.323 and MGCP signalling protocols ensures all call types can be tracked and analysed. If the quality of calls is suspect, network administrators can play back both channels of a VOIP conversation encoded with the most common CODECs, including G.711, G.723.1 and G.729A/B.

OptiView Link Analyzer measures VOIP packets along the network, compared to other techniques which only report data generated at the end points, usually a phone or gateway. Using these live VOIP measurements, Link Analyzer lets IT staff isolate systems or network segments that might be introducing quality degradation due to configuration, bandwidth or latency issues.

This eliminates the need for active testing with synthetic traffic after a quality problem is reported, which adds troubleshooting steps and requires end-point deployments throughout the organisation.

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Fluke Networks

Fluke Networks provides innovative solutions for the testing, monitoring and analysis of enterprise and telecommunications networks and the installation and certification of the fibre and copper forming the foundation for those networks. The company`s comprehensive line of Network SuperVision solutions provide network installers, owners, and maintainers with superior vision, combining speed, accuracy and ease of use to optimise network performance.

Headquartered in Everett, Washington, the company distributes its products in more than 50 countries. More information can be found by visiting Fluke Networks` Web site at www.flukenetworks.com.