Measuring VoIP performance

Article (8)

End-to-end network management enables reliable VoIP, unified communications
Monitoring voice quality, service availability, and security conditions are discussed in this Q&A with Gurmeet Lamba of Clarus Systems.
VoIP performance management abounds at VoiceCon
VoIP performance management tools announced at VoiceCon show that vendors are focusing on user experience over infrastructure.
Disaster recovery and business continuity fundamentals
The importance of disaster recovery and business continuity planning has been underscored by numerous incidents worldwide. Find out how VoIP can keep your communications flowing through natural disasters, unexpected incidents or anything else that can disable your network.
VoIP performance testing fundamentals
This guide discusses why it is important to run regular VoIP network performance testing and some of the ways it can be done.
Network configuration management key to VoIP success
While companies spend millions on upgrading infrastructure for VoIP, little attention is given to solving the largest source of downtime â€“ configuration-related outages due to human error. A well-defined change management process built around a configuration management system can virtually eliminate the "self-inflicted" errors, which currently account for about 60% of all network outages.
How is average repair time determined for both a TDM PBX and a VoIP system?
I am trying to find some statistics on average time to repair or troubleshoot VoIP and TDM PBX. We heard PBX takes 30 minutes versus VoIP at 4.5 hours -- is this true?
VoIP user experience tested
Most VoIP monitoring is focused on quality of service, but one new company is taking a different tack and looking at the quality of experience.
VoIP call quality declines
Advances in technology have made VoIP more common, but that hasn't stopped VoIP call quality from dropping steadily over the last 18 months, according to a recent study by Brix Networks.

Product (1)

VoIP management tool
NetIQ Vivinet Diagnostics is a VoIP management tool that enables users to quickly pinpoint call quality problems in VoIP networks while identifying and explaining the reasons for the reduced call quality in simple terms.

Columns (1)

Calling network management vendors: It's time to get on board with VoIP
Lack of reliable VoIP management tools is holding up full-scale VoIP deployments.

Tips (2)

When should a VoIP system be analyzed and with what tools?
We have recently implemented a VoIP network with separate VLANs and QoS. It all seemed to be working fine when it first went in, but recently, certain people have been complaining about sound breakup whilst talking to customers on the phone. I have also had similar problems, but thought it was due to the amount of diagnostics software that I was running on my PC. To check, I moved my phone into its own port and the breakup is still there. Any ideas how we can check to make sure that the network is doing alright? Also are there any software utilities that would help us with day to day analyzing?
Does Spanning Tree Protocol have an adverse effect on VoIP?
Do you know if Spanning Tree has an adverse effect upon VoIP? If so, what is the best way to provide LAN-based switch redundancy to VoIP gateways?

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