how many extensions does 3cx support?

[rewing]

is it possible to run 200 extensions on 3cx phone system?

 

[Mirzab]

Short answer = YES. Long answer, read on.....

Your limits will be defined by your PC hardware and network capacity, 3CX is in theory unlimited, lots of good information in the various threads. For example http://www.3cx.com/forums/viewtopic.php?t=1945&highlight=Server+Spec and I quote question:

Is there (if not there should be) a guide for recommended systems based on scale? 5 users - XP w/ 512ram, 10 gig HD, 20 users - XP would be ok w/ 1gb & 20 GB HD, 2003 better, 500 users - 2003, 4 gigs ram, 50gb HD is required. Something along those lines.

and answer

There isn't actually. The strength and specs of the machine do not only depend just on the amount of users that connect to the PBX.
You can have as many extensions as you like really. The two real issues (bottlenecks) are how many concurrent calls you are going to have and how many Call Assistants you intend to connect. Without using CA then the system will easily scale beyond 1000 extensions. Each call will cost you a few hundred of K of memory. On a basic server (x2 ~2194 Mhz AMD Processors) you won't even see the CPU budge unless you start placing calls 10 at a time (and by "at a time" I mean in the same second). Calls that use MediaServer are more costy depending on what codec you use. On the other hand Call assistant is currently a bit bulky since the CA Server is executes on PHP. Each connected CA will cost you 8MB of RAM and each time someone connects such a processor (x2 ~2194 Mhz AMD Processors) will take up about 8% CPU time. Beyond about 150 connected CAs you will start noticing a lag in the CA notifications.

At this point you have to upgrade of course. I do not actually see the point in having a pc in 2007 with a 10GB harddisk only

A little bit of creative searching will show you this Forum is your best friend :lol:

The product Data sheet, in PDF, has basic hardware info also http://www.3cx.com/phone-system/3CXPhoneSystem_brochure.pdf and there are several discussions in the Forum covering network capacity.

 

[rewing]

Thanks