VoIP Speed Test

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The crosstalk voice speed test

How to use a voIP Speed Test

People are used to their old legacy phone systems that are connected with PRI lines or pots lines and they want to know if voice over IP will work with their network with their existing internet connection. So one of the ways that you can tell is to run a voice speed test. Conveniently, a VoIP speed test available at crosstalksolutions.com. So if you click on the link you will have it down below.

The crosstalk voice speed tes

The crosstalk voice speed test and what you’re going to see here is first of all the this is what the speed test looks like the test has to be run in Firefox or Internet Explorer. So not even Microsoft edge it has to be Firefox or Internet Explorer because it is Java-based and chrome blocks Java now and I believe edge blocks Java now as well the company that hosts this speed test is going to be coming out with a version that doesn’t use Java hopefully in the near future but it’s just not quite out there yet so the first thing you want to do is click on this graph or click here to run the speed test and once you are sent over to the speed test you have a couple of options.

So first of all you want to use the highest bandwidth codec available and the highest bandwidth codec is g.711 and that says 64 kbps when I’m talking to my customers I always talk about g.711 as 80 kbps though in order to add a little bit of overhead just to make sure that you’ve always got plenty of available bandwidth now when I’m talking about a codec I’m talking about the type of sip being used or the type of voice over IP being used now g.711 is an uncompressed codec. So it’s basically full quality now 80 kbps is the amount of bandwidth that’s going to be used per concurrent phone call of upload and download bandwidth.

The crosstalk voice speed tes

The crosstalk voice speed tes

When you’re talking on the phone you’re sending out 80 kbps and you’re bringing 80 kbps per phone call so right off the bat there’s some math that you can do is how many concurrent phone calls are you expecting to send and receive or to have at any given time and then multiply that by 80 kbps and then subtract that number from your total amount of upload bandwidth you want to use your upload bandwidth because typically upload bandwidth is a little bit less than what your download bandwidth is going to be so if you have five megabits of upload bandwidth and you’re gonna want to do 10 concurrent calls while 10 concurrent calls is going to be just under 1 mega it’s gonna be 800 kbps so that means that you’re gonna be using about a fifth of your total bandwidth for 10 concurrent calls.

The crosstalk voice speed test

The crosstalk voice speed test

Number of lines 5 that’s basically the number of concurrent calls that we’re going to be running with this particular speed test and then if this is by default going to be testing out of Portland Oregon if you want to test elsewhere basically just grab everything past the visual where comm and delete it and reload the test and then you can pick geographically a location that’s closer to you so that you can you know have a more accurate test but if you’re okay with Portland Oregon all you need to do is go ahead and click start test now this is basically going to be running a voice over IP simulation and once it’s complete we’re going to get a few statistics which I will talk about once the results appear .

Packet loss

Here we go I have my results we can see that for my internet connection everything looks a-okay for five concurrent phone calls or five lines so the three things that we measured here are jitter packet loss and then based on those measurements were giving out were given our mean opinion score or mas now what is jitter so jitter is the variation in response time to the server so for instance if you have an internet connection that’s not very stable and it’s jumping from 10 milliseconds to 600 milliseconds to 200 milliseconds to 260 milliseconds it’s bouncing all over the place well those variations in response time are going to negatively affect call quality and that’s what we call jitter now packet loss .

The crosstalk voice speed test

The crosstalk voice speed test

Basically how many packets are being dropped right so if you have a data stream that’s happening and you’re dropping packets well that’s going to be cutouts in a conversation so when you’re talking on the phone it’s going to sound like this and dropping off those packets right okay so that is another thing that you really want to avoid so in my case my jitter was measured at 0.5 milliseconds which means I had a point 5 millisecond variation in packet timing that’s very good and my packet loss was zero point zero so again also very good because of these things are ma score my ma score which is a scale of 1 to 5 or maybe it’s zero to 5 I don’t know I’ve never seen it 1 or 0 so my maus is 4 point 2 which is very good I would consider a mas 4.0 or higher to be very good if your 3 to 4 mas you probably need to do a couple of things little minor tweaks on your network to improve that mosque or simple things such as implementing quality of service for instance would be a good way to get that mosque or up a little bit.

There you have it a very simple and easy test that you can run to determine whether or not your network is going to be available for voice over IP.

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