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Network jitter tests


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    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


Free Download

Unlimited use of PRTG for 30 days. After 30 days PRTG reverts to the freeware edition.
You can upgrade to a paid license at any time.






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 What is a sensor?

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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Free Download

Unlimited use of PRTG for 30 days. After 30 days PRTG reverts to the freeware edition.
You can upgrade to a paid license at any time.



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.



PRTG in a nutshell


PRTG monitors your entire IT infrastructure

Traffic, packets, applications, bandwidth, cloud services, databases, virtual environments, uptime, ports, IPs, hardware, security, web services, disk usage, physical environments, IoT devices and almost everything you can imagine.

PRTG supports most technologies

SNMP (all versions), Flow technologies (i.e. NetFlow, jFlow, sFlow), SSH, WMI, Ping, and SQL. Powerful API (Python, EXE, DLL, PowerShell, VB, Batch Scripting, REST) to integrate everything else. See all PRTG features

PRTG is ready for every platform

Download for Windows and hosted version
available. Monitoring via AJAX Web Interface or Desktop Client.



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More than 500,000 sysadmins love PRTG

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

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Monitor your entire IT infrastructure

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




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Network Monitoring Software - Version (June 22nd, 2022)


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


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Up to 100 sensors for free (Price List)

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

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