VoIP Top 10 best practices
Use this valuable list of the best practices when implementing or troubleshooting VoIP. Keeping these steps in mind will help you get the most from your VoIP network.
1. Understand and measure call quality components. There are a variety of metrics you can use to assess VoIP call quality, including jitter, MOS, R-Factor, gap density, burst density, Quality of Service prioritization, and compression techniques. Ensure you are accurately analyzing VoIP communication by learning how to measure these attributes.
2. Implement Quality of Service prioritization. Incorrectly set QoS precedence for VoIP traffic leads to delays in packet delivery and reduced call quality.
3. Conduct site surveys. The more you know about your network, the better prepared you are to properly integrate VoIP. Conduct a site survey to review current WAN bandwidth levels, traffic flows, and existing switches for bottlenecks and choke points. Then, identify or determine specific needs through testing and modeling.
4. Deploy analysis tools strategically for maximum visibility. Placing network analysis consoles and probes on your network requires a clear understanding of VoIP traffic patterns. Are you concerned with monitoring VoIP traffic locally, over WAN links, both? Depending on your objectives, place your analysis tools to ensure optimal visibility of VoIP communications.
5. Implement VLANs to isolate and monitor VoIP issues. Organize your VoIP traffic by VLAN user groups. This practice will greatly simplify problem resolution.
6. Monitor rollouts to ensure a positive user experience. Determine whether users are receiving a positive experience by reviewing cumulative VoIP metrics, codecs, and other network performance variables during VoIP deployment. By evaluating VLAN setups and overall link utilization, you can judge overall network performance and quickly make adjustments during implementation.
7. Compare jitter to overall network bandwidth utilization to understand response time. When jitter becomes a problem, look at the big picture. A correlation between jitter and bandwidth usage means the problem is overall network usage. If there is no direct correlation, excessive jitter might be caused by isolated network factors that require further investigation.
8. Set up Observer to proactively monitor VoIP activity. Utilize monitoring and notification tools to speed problem resolution. Determine “normal” or “acceptable” levels of activity for your network and its users. Then set up thresholds within your analyzer to alert you when thresholds are broken or in danger.
9. Automate problem resolution. Expert Analysis functionality eliminates unnecessary trial and error when troubleshooting VoIP issues by automating problem resolution. Utilize Expert Analysis on VoIP communication to quickly pinpoint the source of common VoIP problems.
10. Baseline network traffic. For comprehensive understanding of VoIP traffic, capture and store long-term network data. Only with critical trending data can you accurately perform baselining activities. Baselining validates VoIP performance, helps future capacity planning efforts, and provides long-term understanding of VoIP health.