What Actually Happened
You do not need the licensing detail to run a business, but you do need enough of it to tell whether the quote in front of you is reasonable. Here it is, briefly.
| What changed | When | What it means at your desk |
|---|---|---|
| Extension fair use policy — a published maximum number of extensions per simultaneous call licence | Ratios effective from late October 2025 | The handset count that used to be free of charge now has a ceiling attached to it |
| Renewal warnings for systems over the limit | From 1 January 2026 | This is where most people first heard about it — in a quote |
| Enforcement begins, with a grace period; systems still over risk losing technical support | From 1 April 2026 | “We can leave it for now” stopped being an option |
| Editions consolidated — Enterprise Plus retired, Enterprise renamed AI Edition | 23 April 2026 | Free, Basic, PRO and AI. The AI features sit at the top |
| Trial and hosting changes | 2025–2026 | Mostly relevant to your IT provider rather than to you |
This is not a story about a company behaving badly
Every one of those changes is a defensible commercial decision, and unlimited handsets against a licence priced on concurrent calls was always going to be tightened eventually. The point of this page is not that 3CX did something wrong. It is that the changes landed on customers who had no visibility of them and no say in them — and that is worth understanding before you sign another term on the same basis.
The Extension Limit, in Plain English
3CX charges by simultaneous calls — how many conversations can be happening at once — rather than by how many phones you own. That is genuinely sensible pricing, and it is why the product suited sites with lots of handsets.
What changed is that the number of handsets is now capped against the number of simultaneous calls you have paid for:
| Simultaneous calls you licence | Maximum handsets/extensions |
|---|---|
| 8 | 40 |
| 16 | 80 |
| 32 | 176 |
| 64 | 384 |
| 96 | 576 |
| 128 | 768 |
Work through what that does to a real site. A motel with 90 rooms plus reception, restaurant, office and housekeeping has roughly 100 extensions and almost never has more than six or eight calls happening at once — so it has quite reasonably been running on a 16SC licence for years.
16SC allows 80 extensions. The motel has 100.
The choices are to move up to 32SC — which roughly doubles the licence cost to buy sixteen more simultaneous calls the motel will never use — or to remove twenty handsets, which in a motel means taking phones out of guest rooms. Neither option improves anything for the business. That is the shape of the conversation happening across Australia this year, and if it sounds like yours, you are not being singled out.
3CX has said the policy affects about 15% of customers. That is probably accurate. It is also cold comfort if you are in it, because the businesses in that fifteen per cent are not random — they are the ones with a phone in every room.
Are You the Profile That Gets Caught?
One test: count your handsets, then count the most calls you have ever had happening simultaneously. If the first number is more than about six times the second, this is your issue.
Accommodation and venues
Motels, hotels, clubs, caravan parks. A handset per room by definition, concurrency in single digits. The highest ratios in the country and the most exposed to a cap.
Schools and campuses
A phone in every classroom, staffroom and office because staff need to be reachable — not because they are making outside calls. Budgets set annually, with no room for a mid-year uplift.
Clinics, aged care and health
Nurse stations, consult rooms, wings, common areas. Availability is the requirement; call volume is modest. Also the sites where removing phones is the least acceptable answer.
Multi-site retail, warehousing, manufacturing
Twelve shops with four handsets each, or phones across a floor for coordination and safety. The extension count is driven by geography and safety, not by anybody ringing out.
If you are a straightforward office, relax
Twenty staff, twenty handsets, eight simultaneous calls — you are comfortably inside the ratio and none of this touches you. Most of the noise about this topic does not apply to a normal office. Check your own two numbers before spending any energy worrying about it.
Why AI Moved to the Top Tier
On 23 April 2026 the commercial lineup was consolidated: Enterprise Plus was retired, Enterprise became AI Edition, and the tiers settled at Free, Basic, PRO and AI. AI Edition holds the AI capabilities — receptionist, personal assistant, agents, transcription — on top of the PRO feature set.
If you went looking for AI call answering this year and found it above your tier, that is why. And it is worth being clear-eyed about what that means commercially, because AI answering has become one of the first things Australian businesses ask about.
| What you probably want | Where it sits | What it costs you to find out |
|---|---|---|
| Something that answers after hours instead of voicemail | Top tier, plus configuration, plus an AI provider connected behind it | An upgrade conversation and a project, before you know whether it suits your business |
| Call transcripts and summaries | Top tier | Same |
| SMS from your business number | Depends on your trunk provider, not only on the PBX | A second vendor conversation |
| Reporting on missed calls and queue waits | PRO and above | Usually already yours — worth checking before you buy anything |
The general point is not that tiering is unfair; every vendor tiers something. It is that tiered capability turns every improvement into a purchase decision, which is why businesses on tiered platforms often go years without trying things that would have helped them. If you have been putting off looking at AI answering because it means an upgrade, our guide to which calls are actually worth automating will tell you whether it is worth the conversation at all.
Licence vs Service: The Distinction That Explains Everything
This is the part that makes all of the above make sense, and most businesses have never had it explained.
3CX sells software. It does not sell you a phone service. Those are different products with different obligations, and the gap between them is filled by companies you may not have a contract with.
A working 3CX phone system requires at least four things, and the licence is one of them:
| Layer | Who provides it | Who you ring about it |
|---|---|---|
| The PBX software | 3CX | Your IT provider, who raises a ticket |
| Somewhere to run it | A cloud host, or a server in your comms cupboard | Your IT provider |
| The actual phone lines (SIP trunks and numbers) | A separate telco | A different company again |
| The internet it rides on | Your ISP | A fourth company |
| Configuration and support | Your IT provider or reseller | Them, and they are diagnosing across the three above |
None of that is unusual and plenty of businesses run it happily for years. But it explains two things you have probably experienced.
Why some faults take days
When the audio only works one way, the answer could be in any of four layers owned by four companies. Your provider has to prove where the fault is before anyone will accept it — and each handover costs a day.
Why the licence is not the cost
Hosting, trunks, numbers, support hours and the annual bit of project work are all separate lines. The licence is the number everyone quotes and the smallest part of what you actually spend.
Who Actually Answers When It Breaks
Try this exercise. It takes two minutes and it is more informative than any feature comparison.
- It is 7:30am and the phones are not ringing. Write down the number you would call first.
- Write down what happens next. Do you reach a person, or leave a message? Is that person able to look at your system, or do they have to escalate?
- Write down the second call. If it turns out to be the trunks, who do you ring, and do you have that account number?
- Now the honest bit: the last time something went genuinely wrong, how long did it take from first call to resolved?
The answer most businesses give
“I ring our IT guy, and he sorts it out — eventually.” That is a fine arrangement when it is a small business favour and a genuinely difficult one when the phones are down on a Monday morning and your IT provider is on another site. The problem is not competence. It is that a support chain with three handovers in it cannot be fast, no matter how good each link is.
It is also worth knowing that the enforcement change has a support dimension attached: from April 2026, systems that stay over the extension limit risk losing access to technical support. So the licensing question and the support question are not separate ones for an affected site — they are the same question.
Pricing the Whole Thing
Before you renew, build the real total. Most businesses have never added these up in one place, and the exercise frequently changes the decision on its own.
| Line | Where to find it | Notes |
|---|---|---|
| Annual licence | The renewal quote | The number everyone means when they say “what does it cost” |
| Hosting | Cloud invoice, or the server you bought | If it is a server on site, include its eventual replacement |
| SIP trunks and numbers | Your telco bill | Often a separate provider and a separate contract with its own end date |
| Call charges | Same bill | Compare against per-seat plans with calls included |
| Support and managed services | Your IT provider's monthly or hourly billing | Include the ad-hoc hours, not just the retainer |
| Project work in the last 12 months | Invoices | Moves, adds, changes, the new site, the upgrade |
| The uplift being proposed now | The quote in front of you | And whether it recurs annually |
7
Cost lines, one quoted
4
Companies in the chain
3
Handovers per fault
1
Bill you should be comparing
Divide the annual total by twelve, then by the number of people who use a phone. That per-user-per-month figure is the only number that compares fairly against an all-inclusive cloud service — and it is usually a good deal higher than people expect. Our breakdown of what a business phone system costs in Australia has the benchmark ranges to compare it against.
Six Questions Before You Renew
Ask these of whoever presents your renewal. They are not hostile questions and a good provider will welcome them.
| Question | What you are listening for |
|---|---|
| 1. Am I over the extension limit, and by how much? | A number, today. If the answer is “close”, ask what happens when you add three staff next year |
| 2. What is the total annual cost across licence, hosting, trunks, calls and support? | One figure. If nobody can produce it, that itself is the finding |
| 3. What did we spend on phone-related support and project work last year? | The number that is missing from every renewal conversation |
| 4. If the phones are down at 7:30am, what is the sequence? | A named first call and a realistic time to resolution |
| 5. What would AI answering, SMS and call recording cost us here? | Whether the things you actually want are included, tiered, or need another vendor |
| 6. What will this renewal cost next year and the year after? | A trajectory. Everyone has just learned that terms can move |
Question 3 is the one that changes minds
Businesses compare renewal quotes against renewal quotes and leave the labour out of both sides. Add up last year's phone-related support hours and project invoices, and the comparison usually looks entirely different — because on an all-inclusive service most of those hours are not yours to pay for.
Your Options, Fairly Put
Three, and the right one genuinely depends on your situation rather than on which vendor is writing.
Renew and uplift
Sensible if you are inside the ratio or only just over it, your support experience has been good, and the total annual cost stands up when you add every line. If it works, it works. Do get the renewal trajectory in writing.
Renew, but fix the support model
Sensible if the platform suits you but the chain does not. Consolidate trunks and hosting with one party, agree response times in writing, and make sure someone other than one individual can administer the system.
Move to an all-inclusive service
Sensible if you are well over the cap, you are being asked to pay for capacity you will never use, your support has handovers in it, or the features you want sit in a tier you would rather not buy. One provider, one bill, one number to ring.
A fair word about 3CX
It is a capable product, it has been a sensible choice for a lot of Australian businesses, and for many of them it still is. If your numbers are inside the ratio and your provider looks after you properly, there is nothing here that should make you move, and you should be suspicious of anyone who says otherwise. This page is for the businesses in the fifteen per cent — the ones being asked to pay for capacity they will never use, or to take phones off walls.
If you are weighing it up, the 2026 comparison of Australian business phone systems is the neutral overview, hosted versus on-premise PBX covers the architecture question underneath all of this, and what goes wrong when businesses switch covers the practicalities if you decide to.
Frequently Asked Questions
Why did my 3CX renewal price go up in 2026?
Most commonly because of the extension fair use policy. 3CX prices its licences on simultaneous calls rather than on how many handsets you own, and extensions were widely understood to be effectively unlimited. In late October 2025 a published ceiling was introduced tying the maximum number of extensions to the simultaneous call licence size at ratios of roughly five to eight extensions per concurrent call — so 8 simultaneous calls permits 40 extensions, 16 permits 80, 32 permits 176, 64 permits 384, 96 permits 576 and 128 permits 768. Warnings started appearing at renewals from 1 January 2026 and enforcement began from 1 April 2026, with a grace period after which systems still over the limit risk losing access to technical support. If your site has many handsets and few simultaneous calls, you may be over the ceiling and the only ways back inside are a licence uplift or removing extensions. Separately, on 23 April 2026 the editions were consolidated, with Enterprise Plus retired and Enterprise renamed AI Edition, which can also change what tier your features sit in.
Which businesses are affected by the 3CX extension limit?
The ones with a lot of handsets and not many calls happening at the same time. Count your extensions, then count the most simultaneous calls you have ever had; if the first number is more than about six times the second, this is your issue. In practice that means accommodation and venues — motels, hotels, clubs, caravan parks — where there is a handset in every room by definition and concurrency stays in single digits. Schools and campuses, where a phone in every classroom exists so staff are reachable rather than because anyone is ringing out, and where budgets are set annually with no room for a mid-year uplift. Clinics, aged care and health sites with phones at nurse stations, consult rooms and common areas, where availability is the requirement and removing handsets is the least acceptable answer. And multi-site retail, warehousing and manufacturing, where the extension count is driven by geography and safety rather than call volume. A straightforward office with twenty staff, twenty handsets and eight concurrent calls is comfortably inside the ratio and unaffected — check your own two numbers before worrying about it.
What is the difference between a phone licence and a phone service?
A licence entitles you to run software. A service means someone is responsible for your phones working. 3CX sells the former, and a working system needs at least four more things: somewhere to run the software, which is either a cloud host or a server in your comms cupboard; the actual phone lines, meaning SIP trunks and numbers, which come from a separate telco; the internet connection it rides on, from your ISP; and configuration and support, from your IT provider or reseller. That is up to four or five companies involved in one phone system. It is a perfectly normal arrangement and many businesses run it happily for years, but it explains two things people frequently experience. It explains why some faults take days: when audio only works one way, the cause could be in any of four layers owned by four companies, and your provider has to prove where it is before anyone accepts it, with each handover costing a day. And it explains why the licence is not the cost — hosting, trunks, numbers, support hours and annual project work are all separate lines, and the licence is usually the smallest of them.
How do I compare my 3CX costs against a cloud phone service?
Build the real total first, because comparing a licence renewal against a per-seat service price compares two different things. Add up seven lines: the annual licence from your renewal quote; hosting, whether that is a cloud invoice or the server you bought, including its eventual replacement if it is on site; SIP trunks and numbers from your telco bill; call charges from the same bill; support and managed services from your IT provider, including ad-hoc hours rather than just the retainer; all phone-related project work invoiced in the last twelve months, meaning moves, adds, changes, new sites and upgrades; and any uplift being proposed now, noting whether it recurs annually. Divide the annual total by twelve and then by the number of people who use a phone. That per-user-per-month figure is the only number that compares fairly against an all-inclusive cloud service. Most businesses have never added these lines up in one place and the exercise frequently changes the decision by itself, because the labour line is usually the largest one missing from both sides of the usual comparison.
Why is AI answering only on the top 3CX tier?
Because of the edition consolidation on 23 April 2026, when Enterprise Plus was retired and the Enterprise edition was renamed AI Edition, leaving a lineup of Free, Basic, PRO and AI. The AI capabilities — receptionist, personal assistant, agents and transcription — sit in that top tier on top of the PRO feature set. So if you went looking for AI call answering this year and found it above your current tier, that is the reason rather than an error in your quote. The broader point is not that tiering is unreasonable, since every vendor tiers something. It is that tiered capability turns every improvement into a purchase decision, which is why businesses on tiered platforms often go years without trying capabilities that would have helped them. If you have been putting off looking at AI answering because it means an upgrade conversation, the more useful first step is working out which of your calls would actually benefit from automation — that tells you whether the upgrade is worth having before you price it.
Should I switch away from 3CX?
Not automatically, and it depends on three things rather than on anyone's marketing. Renewing and uplifting is sensible if you are inside the extension ratio or only just over it, your support experience has been good, and the total annual cost stands up once you add every line — if it works, it works, though it is worth getting the renewal trajectory in writing given that terms have just demonstrably moved. Renewing but fixing the support model is sensible if the platform suits you but the chain does not: consolidate trunks and hosting with one party, agree response times in writing, and make sure more than one person can administer the system. Moving to an all-inclusive service is sensible if you are well over the cap, if you are being asked to pay for simultaneous call capacity you will never use, if your support has multiple handovers in it, or if the capabilities you want sit in a tier you would rather not buy. It is worth saying plainly that 3CX is a capable product that remains a sensible choice for many Australian businesses, and if your numbers are inside the ratio and your provider looks after you, nothing here should make you move.
What should I ask before renewing my phone system?
Six questions, and the third one changes minds most often. First, am I over the extension limit and by how much — you want a number today, and if the answer is that you are close, ask what happens when you add three staff next year. Second, what is the total annual cost across licence, hosting, trunks, calls and support, as one figure; if nobody can produce it, that is itself the finding. Third, what did we spend on phone-related support and project work last year, because businesses compare renewal quotes against renewal quotes and leave the labour out of both sides, and adding it in usually makes the comparison look completely different. Fourth, if the phones are down at half past seven in the morning, what is the sequence — you want a named first call and a realistic time to resolution, not a general assurance. Fifth, what would AI answering, SMS and call recording cost here, which tells you whether the things you want are included, tiered, or need another vendor entirely. Sixth, what will this renewal cost next year and the year after, because everyone has just learned that terms can move.
