Network jitter tests


  • Monitor network
    jitter with PRTG

  • Keep a constant eye on
    the quality of your VoIP

  • Receive prompt
    jitter alerts


Free Download

Unlimited version of PRTG for 30 days. After 30 days, PRTG reverts to a free version.
Or, you can upgrade to a paid license anytime.






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 

iWhat 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 version of PRTG for 30 days. After 30 days, PRTG reverts to a free version.
Or, you can upgrade to a paid license anytime.



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.



German quality

Free Download
  • Unlimited version of PRTG for 30 days
  • After 30 days, PRTG reverts to a free version
  • Or, you can upgrade to a paid license anytime


Administrators must compare monitoring tools or search for a free one. There are several suppliers on the market.

PRTG comes with a full range of advantages:

1. Free trial version: PRTG is available in a free trial version. Use this version to get a feel for our network monitoring tool with no risk whatsoever.

2. Over 300,000 administrators: whether in large or small businesses, authorities, colleges or administrations - all around the world, more than 300,000 administrators put their trust in our network monitoring tool, and can therefore also monitor their bandwidth. Read our case studies here.

3. Support: do you have a question? We respond in a jiffy! You can already access a great deal of information online by consulting our FAQs, manuals, videos, webcasts, or knowledge base. You can of course also send us a message. We'll do our best to get back to you within 24 hours on business days.

PRTG – your network monitoring tool

PRTG is the Paessler AG all-in-one network monitoring tool. Our software is used by more than 300,000 administrators worldwide, whether it be to monitor their hardware- and server performance , their virtual environments, or the accessibility of their websites. Use PRTG for database monitoring or SQL monitoring.  PRTG is a one fits all network analyzer tool.

Save time, worry, and money. PRTG is configured in a matter of minutes. The trial version is offered free of charge. And you can upgrade whenever you like.



Network Monitoring Software - Version (January 26th, 2021)


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