VoIP Quality of Experience Monitoring with NetQoS^® VoIP Monitor

Making the Connection between VoIP Quality of Experience and Network Quality of Service

More than any other type of application, VoIP quality of experience demands optimal network performance. The combination of NetQoS VoIP Monitor and the NetQoS Performance Center helps you ensure both.

The introduction of VoIP applications on your enterprise network presents specific challenges that can only be addressed with network-centric performance monitoring products. Existing products lack the metrics to give you insight into your users’ quality of experience and help you effectively troubleshoot VoIP applications on your network.

NetQoS VoIP Monitor is a network-based call setup and call quality monitoring product that tracks the call quality users experience, provides alerts on call performance problems, and isolates performance issues to speed troubleshooting and MTTR. NetQoS VoIP Monitor is integrated with the NetQoS Performance Center so you can monitor VoIP quality of experience while managing network quality of service, from a single, Web-based console.

With NetQoS VoIP Monitor, you can assess the performance of your Cisco^® Unified Communications Manager (CallManager) IP PBX by tracking, evaluating, and reporting on key metrics without deploying server agents or probes. For every call, NetQoS VoIP Monitor reports on user call quality and the underlying network performance metrics associated with it. NetQoS VoIP Monitor also breaks out performance data from the IP and Public Switched Telephone Network (PSTN) legs of calls that pass through voice gateways traveling to endpoints in the PSTN. This data lets you know if it is your network that is responsible for less-than-optimal call quality.

How Does NetQoS VoIP Monitor Help You?

Get insight into VoIP quality metrics to ensure VoIP Quality of Experience

NetQoS VoIP Monitor reports on Mean Opinion Score (MOS) and metrics associated with underlying network factors, such as packet loss and jitter, for every call. NetQoS VoIP Monitor provides insight into the two most important components of VoIP behavior on your network:

1) Call Setup - performance of the call setup operations
2) Call Quality - audio quality of the actual call

By providing call setup metrics such as Delay to Dial Tone and Call Failures, NetQoS VoIP Monitor shows you how well your CallManager IP PBX is performing, helping you to better monitor VoIP performance on your network.

Solve VoIP problems faster by isolating the source to specific locations, types of calls, or equipment

NetQoS VoIP Monitor alerts and thresholds can be customized according to your needs to help you pinpoint specific VoIP performance issues on your network.  Performance thresholds can be assigned to specific pairs of network locations, pairs of voice gateways, or pairs of locations and gateways.  Reports show you which pair is experiencing the most severe problem, giving you the insight to determine which network paths are candidates for further diagnosis.  You also have the ability to drill down to individual call legs or gateways to quickly identify VoIP performance problems on your network.

You can configure thresholds and alerts to speed troubleshooting time for problems affecting only a single call.  For call setup, you specify the minimum number of calls and maximum percentage of call failures that trigger an incident.  Similarly, for call quality, you set a minimum number of call minutes and threshold values for MOS and jitter, among others.  For severe conditions, you can set a minimum duration after which automated incident responses are initiated in the form of traps, e-mail notifications, or further investigations.

 

Measure how your network is supporting VoIP quality

Comprehensive call quality information for the enterprise and for each location quickly indicates how well VoIP is performing for your users. Complaints of poor performance are quickly resolved after you have the facts about call quality and call setup times. This information helps you to avoid costly fire drills frequently needed to prove that the network is delivering the required quality of service. When nagging problems persist, set up a Call Watch for any phone with known or suspected quality problems and get real-time, detailed insight into call progress and quality, as soon as any call is made to or from its phone number.

Evaluate call activity and plan for updates

Capacity planning reports enable you to view capacity across the entire enterprise or for a specific location or gateway and can be used to determine busy-hour call attempts (BHCA) and busy-hour call completions (BHCC) on the network.  In addition, the reports provide a view of the effects of call volume on call performance and help track trends in call setup failure rates.  Utilization reports, which include per-interface statistics and identify individual channels, are especially useful for negotiating contracts with service providers.

Register for an evaluation of NetQoS VoIP Monitor today.

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