How does 3CX pricing actually work?

3CX has traditionally been licensed on simultaneous calls rather than per user, which is the single most important thing to understand about it. You pay for how many conversations can happen at once, not how many people might make one, so a forty-person business with six concurrent calls at its peak pays like a small business.

This is why 3CX and per-user platforms are so hard to compare, and why the comparison so often gets done wrong. Per-user pricing scales with headcount: every staff member who might make a call needs a licence whether they use it daily or monthly. Concurrent-call pricing scales with actual telephone activity. For most small businesses those two numbers diverge sharply, because staff count grows steadily while the number of people on the phone at any given second stays remarkably flat.

So the number that prices the system is your peak concurrent calls, and it is worth measuring rather than estimating. If you have an existing phone system it can generally report this. If not, observe the busiest hour of your busiest day for a week and count. Most businesses are surprised: a thirty-person professional services firm often peaks around four or five, while a ten-person practice with a busy reception can peak higher than a much larger office where everyone works by email.

Size for that peak plus modest headroom, and resist two temptations. The first is sizing for theoretical maximum, where every staff member dials simultaneously, which happens approximately never and costs money every month. The second is sizing exactly to the observed peak with nothing spare, since exceeding the limit means calls are rejected or diverted rather than queued, and the day that happens will be your busiest day. A small margin is cheap insurance against a bad look.

The tiers above the entry level add capability rather than capacity, and the honest question is whether you will use it. Higher editions bring things like richer call queue strategies, call recording, reporting and contact-centre features. Some businesses need call recording for compliance or training, and for them the tier decision is made. Others buy an edition for features that never get switched on, which is the ordinary way software gets over-purchased. Ask which specific feature is driving a recommendation, and if the answer is vague, buy the tier below.

Two costs sit outside the licence and both belong in the comparison. Calls themselves are separate, carried over SIP trunks from a carrier, priced by lines or minutes or as an inclusive plan, and that is a genuinely different bill. And hosting: 3CX can run in the cloud or on your own infrastructure, and self-hosting appeals to businesses that want control while adding a server to maintain, patch and back up. For most small businesses hosted is the right answer, because the saving on hosting is smaller than the cost of owning another server.

One more sizing subtlety catches people, and it is worth checking before you buy: internal calls between staff may or may not count toward your concurrent limit depending on how the system is configured and how calls are routed. In a business where people ring each other constantly, that distinction can be the difference between one tier and the next, so ask the question explicitly rather than assuming the licence covers only external conversations.

Where the model works against you is worth stating plainly. A business where nearly everyone is on the phone simultaneously, a call centre, a busy sales floor, loses the advantage entirely, because concurrent calls approach headcount and you are paying per-user prices through a different mechanism. In that shape, compare properly rather than assuming the concurrent model wins.

Hosting choice interacts with the licence in a way worth planning around. Self-hosting appeals to businesses that want control and it adds a server to patch, back up and eventually replace, which is the same commitment discussed anywhere else on this site and is easy to underestimate for something as unglamorous as a phone system. For most small businesses, hosted removes a maintenance obligation that costs more in attention than it saves in fees.

The honest caveat is that 3CX has revised its licensing more than once, so confirm current terms at the point of purchase rather than relying on any article, this one included. Ask what happens at renewal specifically, since licensing changes are felt then rather than at signup. If you want your concurrent peak measured properly before anyone quotes a tier, call 1800 456 567.