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Paessler PRTG

Network jitter tests


  • icon check white 2
    Monitor network
    jitter with PRTG
  • icon check white 2
    Keep a constant eye on
    the quality of your VoIP
  • icon check white 2
    Receive prompt
    jitter alerts







What’s network jitter?

Network jitter is the deviation from the average amount of time a data packet needs to travel from its starting point to its destination. High jitter values can cause noticeable delays and transmission errors (such as background noise and faulty audio signals), in particular when it comes to real-time services such as VoIP. No network is completely free of jitter. The important thing is that you keep jitter to a minimum.

Network jitter tests are a good way to check the quality of your connection. Among other things, these tests will help you determine whether your Internet Service Provider (ISP) is fulfilling the terms of your service level agreement (SLA), or if you need to increase your bandwidth



Sensors for testing and monitoring jitter 

 i How PRTG defines sensors

In PRTG, “sensors” are the basic monitoring elements. One sensor usually monitors one measured value in your network, e.g. the traffic of a switch port, the CPU load of a server, the free space of a disk drive. On average you need about 5-10 sensors per device or one sensor per switch port.

View video (3:26 min.)


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How to test for network jitter with PRTG

Create sensors

Create sensors

Create one or more of the four sensors mentioned above, such as the QoS (Quality of Service) Round Trip sensor. PRTG will automatically measure the deviation in the mean latency time and calculate this value as jitter (in accordance with RFC 3550).

Read the values

Read the values

PRTG displays the minimum, maximum, and average fluctuation in latency time in milliseconds. For a more accurate reading, measure and record the value over longer periods of time. We recommend a jitter value of less than 20 milliseconds.

Take necessary actions

Take necessary actions

If your jitter value is too high, you might want to increase your bandwidth, but this of course will cost you more money. As an alternative, you can assign more bandwidth to VoIP and less to other data packets such as emails.


Advantages of continual jitter monitoring with PRTG


Stable VoIP

Many companies rely on stable VoIP connections to effectively conduct their business. By continually testing for network jitter, PRTG provides the stability these companies need. PRTG also keeps a constant eye on other VoIP-related data such as latency, packet loss, and ping times. If problems arise, you can take corrective actions at once.


Prompt alerts

You can set up custom notifications for each of the sensors you create in PRTG. If one of your threshold values is exceeded, you’ll receive an alert via SMS, email, or the PRTG app. Most of the time, you’ll be able to take action before disruptions or malfunctions arise.


All-in-one monitoring

PRTG is not only a jitter test tool, but also comes with a full range of features for monitoring your entire network. With PRTG, you get an overview of your bandwidth, servers, databases, and every other component in your IT environment.


Create innovative solutions with Paessler’s partners

Partnering with innovative vendors, Paessler unleashes synergies to create
new and additional benefits for joined customers.


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PRTG in a nutshell


PRTG monitors your entire IT infrastructure

Use PRTG to monitor, for example, network traffic, applications, bandwidth, cloud services, databases, virtual environments, availability & uptime, ports, IP addresses, hardware status, network security, web services, and much more.

PRTG supports the most important technologies

Monitor your network for example via SNMP, flow protocols (NetFlow, jFlow, sFlow, IPFIX), SSH, WMI, or ping. PRTG also supports technologies used in Industrial IT & OT environments, such as OPC UA, MQTT, or Modbus. Use the powerful PRTG API for custom integrations (for example via Python, PowerShell, or REST).

PRTG can be used for any operating system

Download and install PRTG Network Monitor on a Windows system or use our cloud-based product PRTG Hosted Monitor for all other operating systems. What’s more: our native PRTG Desktop application runs on Windows or macOS – for even quicker access & multi-server views.



Still not convinced?



More than 500,000 sysadmins love PRTG

Paessler PRTG is used by companies of all sizes. Sysadmins love PRTG because it makes their job a whole lot easier.

Still not convinced?


Monitor your entire IT infrastructure

Bandwidth, servers, virtual environments, websites, VoIP services – PRTG keeps an eye on your entire network.



Try Paessler PRTG for free

Everyone has different monitoring needs. That’s why we let you try PRTG for free. Start now with your trial.




Network Monitoring Software - Version (June 13th, 2024)


Download for Windows and cloud-based version PRTG Hosted Monitor available


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Up to 100 sensors for free (Price List)

Unified Monitoring

Network devices, bandwidth, servers, applications, virtual environments, remote systems, IoT, and more

Supported Vendors & Applications

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