Engineer voip

What’s the Dory Story?

Call simulator finds problems before your customer

Dory call simulator can be used to quickly certify new firmware releases on CPE such as PBXs or to stress test a network after upgrades to carrier platforms.

Some of you will know I’ve been doing some consultancy work for a Belgian outfit called Netaxis Solutions. Netaxis develop software that is used by telcos around the world to help run their networks.

Recently I’ve been looking at their Dory call simulator. I hadn’t quite sussed how useful these thing are. If you are performing upgrades to your hosted platform then the ability to run stress tests overnight before your customers come in in the morning could save you a lot of angst. An upgrade that at first appearance seems to have been successful isn’t really tested until the network is carrying lots of calls. If you can avoid it (and I know from bitter experience) it’s better not to have your customers perform the stress tests on your behalf. What price peace of mind.

The Dory call simulator can be setup to initiate multiple calls per second and build scenarios  that replicate real life situations. It empowers you to decide whether to roll back an upgrade before it is customer affecting.

The other cool feature is Dory’s ability to test CPE such as PBXs. If you provide SIP trunks to your customers then the likelihood is that these customers will use a wide variety of equipments at the end of the SIP trunk. The more the type of kit the bigger the support headache. Most operators don’t have the luxury of being able to constrain their customers to a small number of supported CPE.

The problem is every  time a vendor upgrades their firmware this kit has to be recertified on your network. This is an expensive and time consuming process. Imaging it it could be automated. Well this is what Dory does.

You can easily construct scenarios that match all the call types handled by a piece of equipment. Call transfer, hold, hunt groups etc etc. You build up your library of scenarios and every time an interop test needs running you just point Dory at the kit and hey presto, it runs the tests.

There is a little more to it than this but you get the drift. Dory comes with a console, a scheduler and logger, can simulate both inbound and outbound calls and can be run as multiple instances around your network. I have some spiel/data so if you want to know more feel free to get in touch. Also if you think you would like a demo you can request it from the Netaxis Dory page on their website.


Trefor Davies

By Trefor Davies

Liver of life, father of four, CTO of, writer, poet,

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