After a VoIP server is installed, it is always an important thing to do a stress test. This will allow us to know the aproximate number of simultaneous calls (aka CPS) the server can support before start having issues. This kind of tests allows you to do a metric about availability, as you can know how tolerant is your server to high loads of traffic.
The test result is not always exact; there are many factors involved, such as:
So, remember the number you will get here, it won't be an absolute true but it will give you a good idea about what to expect. Another thing to have in mind is that production and laboratory are very different, just in case if something doesn't make sense.
To stress your PBX do the following steps:
You will be able to send more calls to the PBX, pay attention when the tool starts to report missing packets.
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