Network jitter tests
Monitor network
jitter with PRTG
Keep a constant eye on
the quality of your VoIP
Receive prompt
jitter alerts
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
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.
QoS (Quality of Service) Round Trip sensor
Cisco IP SLA sensor
QoS (Quality of Service) One Way sensor
Ping Jitter sensor
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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 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
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
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.
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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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.
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PRTG |
Network Monitoring Software - Version 22.2.77.2204 (June 22nd, 2022) |
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Hosting |
Download for Windows and cloud-based version PRTG Hosted Monitor available |
Languages |
English, German, Spanish, French, Portuguese, Dutch, Russian, Japanese, and Simplified Chinese |
Pricing |
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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