Stay Ahead of VoIP Issues With Proactive Jitter Testing

Use SolarWinds^® VoIP & Network Quality Manager (VNQM), part of SolarWinds Observability Self-Hosted, to run a jitter test, monitor VoIP call metrics in real time, and resolve call quality issues before users notice.

Download Free Trial Email Link to Trial

Fully functional for 30 days

Learn More

Test, monitor, and troubleshoot VoIP jitter

Detect network jitter

Monitor VoIP call quality

Proactively troubleshoot jitter

Get alerted about jitter issues

Deepen jitter analysis

Detect network jitter with detailed VoIP metrics

A jitter test gives you the visibility to stop guessing about call quality. SolarWinds VoIP & Network Quality Manager (VNQM), part of SolarWinds Observability Self-Hosted, automatically monitors VoIP calls for maximum jitter, current jitter, and packet delay variation. With IP SLA–capable nodes, VNQM starts tracking these metrics immediately and lets you drill down into call detail records for granular jitter and packet delay analysis—all from a single, unified dashboard within the broader observability platform.

Learn More

Monitor VoIP call quality and jitter trends

Spot patterns before they become complaints. VNQM lets you search and filter VoIP calls based on the metrics captured in call detail records, including jitter, VoIP packet loss, and mean opinion score (MOS). Work backward from affected calls to determine where jitter is highest, filter by common error codes, and flag calls where jitter measurement exceeds acceptable thresholds. As part of SolarWinds Observability Self-Hosted, these insights sit alongside your broader network and infrastructure monitoring for a unified view across hybrid IT.

Learn More

Proactively troubleshoot jitter and VoIP performance

Bandwidth and resource provisioning play a direct role in jitter. VNQM lists the top 10 call quality issues and the distribution of VoIP and data for each designated gateway, so you can see exactly how VoIP capacity is being used. Use these insights to adjust Quality of Service (QoS) settings, rebalance network configuration, and reduce jitter before it reaches end users. Within SolarWinds Observability Self-Hosted, this gateway-level visibility complements the broader infrastructure and network performance monitoring your team already relies on.

Learn More

Get alerted when jitter exceeds critical thresholds

Stop monitoring jitter by hand. VNQM sends real-time alerts whenever jitter surpasses acceptable levels, so you can start network jitter troubleshooting the moment a problem emerges. You define the thresholds—whether based on jitter, latency, packet loss, or MOS—and VNQM monitors them continuously within the SolarWinds Observability Self-Hosted console. These proactive notifications help you drill down on performance issues caused by jitter and act before users report distorted or dropped calls.

Learn More

Deepen jitter analysis with correlated network metrics

Jitter rarely exists in isolation. It interconnects with latency, VoIP packet loss, bandwidth usage, and overall network performance. The PerfStack dashboard available with VNQM lets you correlate call performance metrics with jitter levels, WAN throughput, and device CPU or memory utilization on a single, drag-and-drop timeline. Instead of toggling between screens, you see the full picture in one view. As part of SolarWinds Observability Self-Hosted, PerfStack brings cross-stack correlation to your VoIP troubleshooting—so you spend less time chasing symptoms and more time resolving root causes.

Learn More

Get more from your jitter tests

Learn how to test, diagnose, and troubleshoot VoIP jitter with greater precision.

What Causes High Jitter In VoIP Networks?
How Can I Reduce Jitter And Improve VoIP Call Quality?
How Do I Run A Jitter Test On My Network?
How Does SolarWinds VNQM Test And Monitor Jitter?
Can VNQM Alert Me When Jitter Exceeds A Treshold?
Can VNQM Correlate Jitter With Other Network Metrics?

What causes high jitter in VoIP networks?

Jitter refers to intermittent delays in data packet transmission, measured in milliseconds. Unlike network latency—which measures overall transit speed—jitter measures the variation in those delays. When packets arrive at irregular intervals, VoIP calls suffer distortion, warbling, or dropouts. Acceptable jitter levels are generally below 30ms, ideally below 20ms, with less than 1% packet loss and an average latency under 150ms.

The most common causes of high jitter include: routing issues from your internet service provider (ISP) or unstable connection quality; network congestion from too many devices competing for bandwidth; wi-fi networks that introduce packet loss and instability; old or faulty hardware such as outdated modems, damaged Ethernet cables, or misconfigured routers; and poor packet prioritization, where QoS settings fail to allocate sufficient bandwidth to VoIP traffic. A VoIP jitter test helps pinpoint which of these factors is at play.

Learn More

What causes high jitter in VoIP networks?

Jitter refers to intermittent delays in data packet transmission, measured in milliseconds. Unlike network latency—which measures overall transit speed—jitter measures the variation in those delays. When packets arrive at irregular intervals, VoIP calls suffer distortion, warbling, or dropouts. Acceptable jitter levels are generally below 30ms, ideally below 20ms, with less than 1% packet loss and an average latency under 150ms.
The most common causes of high jitter include: routing issues from your internet service provider (ISP) or unstable connection quality; network congestion from too many devices competing for bandwidth; wi-fi networks that introduce packet loss and instability; old or faulty hardware such as outdated modems, damaged Ethernet cables, or misconfigured routers; and poor packet prioritization, where QoS settings fail to allocate sufficient bandwidth to VoIP traffic. A VoIP jitter test helps pinpoint which of these factors is at play.
Learn More
How can I reduce jitter and improve VoIP call quality?
A dedicated jitter test tool can help you identify exactly where jitter occurs and measure the impact of each change you make. Jitter cannot be eliminated entirely, but you can reduce it with these targeted steps:

Deploy a jitter buffer to temporarily store incoming packets and ensure they arrive in sequence—buffers are typically configured for 30–200ms.

Upgrade to an internet connection with robust internet speed—including reliable download speeds and upload speeds with sufficient Mbps from your ISP—and replace outdated network hardware.

Use Ethernet or fiber-optic cables instead of Wi-Fi. Wired connections can improve voice call stability and reduce packet loss.

Reconsider bandwidth usage—restrict nonessential traffic during work hours and schedule device updates outside peak times.

Optimize QoS settings to prioritize video calls, video conferencing, and VoIP traffic above video streaming and other non-critical network activity.

Learn More

View Product Guide

We can automatically create all access points like a node without touching anything. Each team—VoIP, WAN, security, and others—has dedicated dashboards, including at the C-level with scheduled report dashboards.

Read the Case Study

Ramazan Karadavut

Consolit | Borusan Holding

Test and troubleshoot VoIP jitter

SolarWinds^® VoIP & Network Quality Manager (VNQM)

Run jitter tests to isolate network and VoIP performance issues in minutes.
Track jitter, latency, packet loss, and other key VoIP metrics in real time.
Analyze call performance data to pinpoint the source of poor call quality.

Starts at

Download Free Trial Email Link to Trial

Fully functional for 30 days

Learn More

Let's talk it over.

Contact our team. Anytime.

Explore more VoIP tools

Check out SolarWinds tools for monitoring call quality, network jitter, packet loss, WAN performance, and other factors affecting VoIP.

Call Quality Monitoring Cisco Call Manager Support IP SLA Monitor

Call Detail Record Analysis Packet Loss Monitoring Packet Loss Testing

WAN Monitor Network Jitter Troubleshooting Network Jitter Monitoring

Explore More Resources

View All Resources

Stay Ahead of VoIP Issues With Proactive Jitter Testing

Use SolarWinds^® VoIP & Network Quality Manager (VNQM), part of SolarWinds Observability Self-Hosted, to run a jitter test, monitor VoIP call metrics in real time, and resolve call quality issues before users notice.

Test, monitor, and troubleshoot VoIP jitter

Detect network jitter with detailed VoIP metrics

Monitor VoIP call quality and jitter trends

Proactively troubleshoot jitter and VoIP performance

Get alerted when jitter exceeds critical thresholds

Deepen jitter analysis with correlated network metrics

Get more from your jitter tests

What causes high jitter in VoIP networks?

How can I reduce jitter and improve VoIP call quality?

How do I run a jitter test on my network?

How does SolarWinds VNQM test and monitor jitter?

Can VNQM alert me when jitter exceeds a threshold?

Can VNQM correlate jitter with other network metrics?

What causes high jitter in VoIP networks?

How can I reduce jitter and improve VoIP call quality?

How do I run a jitter test on my network?

How does SolarWinds VNQM test and monitor jitter?

Can VNQM alert me when jitter exceeds a threshold?

Can VNQM correlate jitter with other network metrics?

Test and troubleshoot VoIP jitter

SolarWinds^® VoIP & Network Quality Manager (VNQM)

Explore more VoIP tools

Check out SolarWinds tools for monitoring call quality, network jitter, packet loss, WAN performance, and other factors affecting VoIP.

Explore More Resources

What causes high jitter in VoIP networks?

How can I reduce jitter and improve VoIP call quality?

How do I run a jitter test on my network?

How does SolarWinds VNQM test and monitor jitter?

Can VNQM alert me when jitter exceeds a threshold?

Can VNQM correlate jitter with other network metrics?

What causes high jitter in VoIP networks?

How can I reduce jitter and improve VoIP call quality?

How do I run a jitter test on my network?

How does SolarWinds VNQM test and monitor jitter?

Can VNQM alert me when jitter exceeds a threshold?

Can VNQM correlate jitter with other network metrics?

Stay Ahead of VoIP Issues With Proactive Jitter Testing

Use SolarWinds® VoIP & Network Quality Manager (VNQM), part of SolarWinds Observability Self-Hosted, to run a jitter test, monitor VoIP call metrics in real time, and resolve call quality issues before users notice.

Test, monitor, and troubleshoot VoIP jitter

Detect network jitter with detailed VoIP metrics

Monitor VoIP call quality and jitter trends

Proactively troubleshoot jitter and VoIP performance

Get alerted when jitter exceeds critical thresholds

Deepen jitter analysis with correlated network metrics

Get more from your jitter tests

What causes high jitter in VoIP networks?

How can I reduce jitter and improve VoIP call quality?

How do I run a jitter test on my network?

How does SolarWinds VNQM test and monitor jitter?

Can VNQM alert me when jitter exceeds a threshold?

Can VNQM correlate jitter with other network metrics?

What causes high jitter in VoIP networks?

How can I reduce jitter and improve VoIP call quality?

How do I run a jitter test on my network?

How does SolarWinds VNQM test and monitor jitter?

Can VNQM alert me when jitter exceeds a threshold?

Can VNQM correlate jitter with other network metrics?

Test and troubleshoot VoIP jitter

SolarWinds® VoIP & Network Quality Manager (VNQM)

Explore more VoIP tools

Check out SolarWinds tools for monitoring call quality, network jitter, packet loss, WAN performance, and other factors affecting VoIP.

Explore More Resources

What causes high jitter in VoIP networks?

How can I reduce jitter and improve VoIP call quality?

How do I run a jitter test on my network?

How does SolarWinds VNQM test and monitor jitter?

Can VNQM alert me when jitter exceeds a threshold?

Can VNQM correlate jitter with other network metrics?

What causes high jitter in VoIP networks?

How can I reduce jitter and improve VoIP call quality?

How do I run a jitter test on my network?

How does SolarWinds VNQM test and monitor jitter?

Can VNQM alert me when jitter exceeds a threshold?

Can VNQM correlate jitter with other network metrics?

Use SolarWinds^® VoIP & Network Quality Manager (VNQM), part of SolarWinds Observability Self-Hosted, to run a jitter test, monitor VoIP call metrics in real time, and resolve call quality issues before users notice.

SolarWinds^® VoIP & Network Quality Manager (VNQM)