Top 10 cloud PBX providers in Europe (2026)

We build Voxbi, a cloud phone system, at Mixvoip in Luxembourg. Customers ask us the same question every week: who else should we be looking at, and what does this really cost? So we did the work properly and wrote it down, competitors included.

Every price in this article was read from the provider's own website or price list on 9 September 2026. Where a provider publishes no price, we say so rather than guess.

Table of contents

• What the PBX market data can and cannot tell you

• The switch-off is the real deadline

• What it actually costs

  • What those four tables actually show

• The ten providers

  • Group A: the price is on the website

  • Group B: you have to ask for the price

• Where Voxbi fits

• The costs that are not on the pricing page

• Ten questions to ask before you sign

• What we could not verify

• Frequently asked questions

• Words used in this article

• Method and sources

What the PBX market data can and cannot tell you

If you are trying to work out whether you are late to this, here is the short version.

Nobody can tell you what share of European businesses use a cloud phone system. We looked hard. Eurostat runs the survey everyone quotes, and it splits cloud services into ten categories: email, office software, file storage, security, accounting, database hosting, ERP, computing platforms, CRM and development platforms. Telephony is not one of them. So any article claiming "68% of European businesses have moved to cloud telephony" is quoting a paid analyst report, a marketing team, or nothing at all. We are not going to add another invented number to that pile.

What the official data does tell you is useful anyway.

Table 1. Enterprises buying paid cloud services in the EU, 2025

Source: Eurostat, isoc_cicce_use, 2025 data published February 2026. Cloud services in general, not telephony.

Three practical readings of that.

You are probably not late, and you are probably not early either. Just over half of European firms with ten or more staff buy paid cloud services of some kind. Telephony tends to be one of the last things to move, because the old phone system still works and nobody wants to touch it.

Size predicts this more than country does. A large company is 35 points more likely to buy cloud than a small one. If you are a small firm still on an old box, you are in the majority, not the minority.

There are a lot of firms in your position. Eurostat counts 33.5 million enterprises in the EU, and 33.2 million of them, 99%, have fewer than 50 staff.

Table 2. Paid cloud services by country, firms with 10 or more staff, 2025

One more figure worth knowing before you shortlist. Frost & Sullivan estimates Europe had about 49.1 million business cloud telephony seats in 2024, heading for 78.5 million by 2030, and puts the top five providers at just 35% of the installed base. That is an analyst estimate rather than an official statistic, and we flag it as one. But the fragmentation is real, and it is why a shortlist of ten is a genuine shortlist. There is no European default vendor the way there is in email or office software.

The switch-off is the real deadline

If this decision has a date attached, it is not fashion. The old copper network is being turned off country by country, and when the line into your building stops working, a phone system that depends on it stops working too.

Table 3. PSTN and copper switch-off by country

Two of these need a word of explanation.

The UK has the hardest deadline and the least time left. Openreach confirmed in July 2026 that there will be no extension. About 1.5 million lines still have to move, roughly 350,000 of them business premises, and legacy line pricing is rising sharply before the cut.

France has the longest runway and the most confusing one. Commercial closure reached about three quarters of communes on 31 January 2026, but technical closure runs in seven lots until around November 2030. A French business can be told the copper network is closing and also find its own exchange has years left. Check your commune, not the national headline.

We found no reliable national date for Italy, Sweden, Denmark or Finland, so we left them out rather than repeat dates that circulate without a source.

What it actually costs

Here are three ways to run business telephony, priced from published tariffs, ex VAT, for 10, 25, 50 and 100 people in Luxembourg, France, Belgium and Germany. One table per company size, so you can go straight to yours.

• A. Mobiles only. Everyone gets a business mobile and there is no phone system at all.

• B. On-premise PBX. A box in the comms room, desk phones, SIP channels, a maintenance contract and someone to look after it.

• C. Cloud PBX. A subscription and a company number, with the maintenance built into the price.

Table 4. Monthly cost for 10 people, ex VAT

Table 5. Monthly cost for 25 people, ex VAT

Table 6. Monthly cost for 50 people, ex VAT

Table 7. Monthly cost for 100 people, ex VAT

What those four tables actually show

Mobiles are the expensive way to run a phone system. The saving against a cloud PBX with unlimited calls runs from about 32% in Germany to 49% in Belgium. Germany is lowest because German operators discount hard from the second SIM card, so the real per-card cost across a team is well below the headline tariff. And a pile of mobiles still gives you no main company number, no opening-hours greeting, no menu, no queue, and no way to pick up a colleague's ringing line. One fair caveat in the other direction: a mobile plan also buys mobile data, and a cloud PBX does not. Most companies will keep some mobiles either way.

The hardware is not what makes an on-premise system expensive. Look at the equipment line. Spread over its tax life, a phone system for 50 people costs about €115 a month. If the comparison stopped there, the box on the wall would win, and we would rather say that plainly than pretend otherwise.

What makes it expensive is the maintenance contract and the hours. Those two lines are 80% or more of the on-premise total at every size. That is also where the honest uncertainty sits, which is why we put both on their own line rather than burying them in a total. If your maintenance contract is cheaper than 15% a year, or your system genuinely needs almost no attention, run the numbers again with your own figures. Everything you need is in the tables.

The gap grows with headcount. At ten people, moving off an on-premise system saves roughly €800 to €1,050 a year. At a hundred, it is €2,900 to €4,300. The subscription grows with your team, but the maintenance and the hours grow faster.

The ten providers

Two groups. Group A publishes its prices, so you can build a budget today without speaking to anyone. Group B sells through partners and quotes on request. That is not a criticism, but it does mean you cannot compare it on price until you are already in a sales conversation. Inside each group the order is alphabetical.

Group A: the price is on the website

Hosting and compliance: your choice, and that is the catch. 3CX names Google Cloud, Azure, AWS, DigitalOcean and Vultr across EU and US regions, and OVH as EU only. Data can leave the EU depending on what you pick. No support hours, no SLA and no security certification are published anywhere on 3cx.com.

Our disclosure: we sell certified SIP trunks into 3CX installations, so 3CX is a partner of ours as well as an alternative to us.

Hosting and compliance: geo-redundant data centres inside the EU, and NFON states the data never leaves the EU. Published SLA of 99.9% on the NFON network and 98% on the web interfaces. Support Monday to Friday 08:00 to 18:00, with 7x24 cover for high-priority faults. ISO 27001 and ISO 9001 are claimed in NFON's knowledge base, but we could not find a live page offering the certificates for download.

Hosting and compliance: Switzerland only, stated plainly, with no storage of call or customer data abroad. For an EU buyer that is a country outside the EU covered by an adequacy decision, which is a deliberate design choice rather than a problem, but it is a choice you should make knowingly. Support Monday to Friday 08:00 to 18:00, first line through the certified installation partner, and 24/7 support is a paid add-on at CHF 160 a month. No uptime figure published, and no information security certification. The page titled "Zertifizierungen" is about interoperable hardware, not security.

Hosting and compliance: Ringover's GDPR page states every data centre holding service data is in France, with no transfer outside the EU or EEA. Its security page separately claims "17 data centers across the globe (including 6 in the US)". Those two statements do not agree, we report both, and we would ask Ringover which one governs call data and recordings. Claims 99.95% reliability; support hours are not published. Ringover publishes no security certification of its own. The ISO 27001 it cites belongs to its hosting providers.

Hosting and compliance: the most specific disclosure of the ten, and it deserves credit. Telavox names its actual hosting suppliers, Kraftringen, Equinix Sweden and Digital Realty Sweden, so Swedish data centres, with traffic records on Google Cloud EMEA and all standard storage inside the EU or EEA. Support Monday to Friday 07:00 to 18:00 by phone and email with a 24-hour response commitment, and a trust centre claim of 99.98% uptime. ISO 27001, but scoped to the "product and R&D organization" rather than the whole group, and no certificate is published.

Hosting and compliance: built and hosted in the European Union, with calls and data staying inside EU borders. Voxbi One is email support only; Managed adds phone support and an SLA with downtime credit at four service levels. We claim ISO 27001 on the Mixvoip accreditations page along with the "Cybersecurity Made in Europe" label, but we do not publish the certificate number or its validity dates, which is exactly the gap we flag for NFON and Telavox above.

Where our published information is thin: voxbi.com lists self-service number availability in Germany, France, the Netherlands, Spain, Italy and Portugal. If you need a number somewhere else, including Luxembourg or Belgium, ask us rather than assume.

Group B: you have to ask for the price

Hosting and compliance: described only as "secure, European infrastructure". No country or data centre is named, and the general conditions allow personal data to be processed outside the EEA where the destination is judged adequate. No published support hours and no SLA percentage; the conditions refer to "the applicable SLA" without giving an availability figure. ISO 9001, 27001 and 27701 were announced by Dstny Sweden, and whether that scope covers the Belgian entity is not stated. No certificate is published.

Hosting and compliance: the Enreach Contact privacy statement says all data sits on servers within the EEA, while the general privacy statement adds that Enreach may transfer personal data outside the EEA under standard contractual clauses. EEA by default, with a written reservation. Nothing on support hours or SLA is published at group level, so those terms sit with your reselling partner and are worth pinning down in writing. ISO 9001 and ISO 27001 are claimed, but the certificate Enreach publishes, DNV number C752281, ran from 15 March 2023 to 14 March 2026 and has expired. Ask for the current one.

Hosting and compliance: the best disclosure of the ten, and we say that as a competitor. Hosting in the United Kingdom per Gamma's own G-Cloud service definition, which for an EU buyer means relying on the UK adequacy decision. A 24/7 support desk with a published phone number. SLA from the G-Cloud listing: core service 99.95%, interface 99.9%, user subscriptions 99.5%, severity response targets from 30 minutes. ISO/IEC 27001:2022, ISO 22301:2019, ISO 9001, ISO 14001, BS 10008 and Cyber Essentials Plus, with the certificates downloadable from its accreditations page.

Hosting and compliance: AWS, with a dedicated single-tenant instance per customer and a region chosen by the customer. There is no EU-only guarantee, so where your data sits is a question for your partner rather than a property of the product. No published support hours, and end-user support comes from the partner. Wildix publishes availability figures of 99.99% for its services and 99.999% for CLASSOUND. SOC 2 Type 1 and Type 2 are available through the trust centre after signing an NDA. Read the ISO wording carefully: the ISO 27001 and ISO 22301 Wildix refers to are held by the data centres, not by Wildix.

Where Voxbi fits

We would rather you picked the right system than picked ours. So here is the short version of when we are a good answer.

The costs that are not on the pricing page

This is where budgets break. Every point below comes from the ten providers above.

1. The number is usually not included. We charge €2.00 a month per number on self-service and €3.30 or more on Managed. NFON charges €19 one-off for ten numbers. Ringover includes exactly one number for the whole company on its entry plan, not one per person. If you have priced a 25-person system on seat cost alone, you have not priced it.

2. One number per company is not one number per person. Ringover TALK gives one per company, and one per user only from the mid tier. Our paid plans include none at all. Decide early whether your people need direct dial, because it moves the total more than the seat price does.

3. Minimum seats and minimum channels. Ringover requires three users. Our own Channel plan requires three channels, so €43.50 a month before anyone speaks. peoplefone prices in bands of one to five and six to ten, so a sixth hire raises the bill by two thirds. Look at the step, not just the rate.

4. Contract length, and what leaving costs. Dstny's general conditions default to 36 months when the order form is silent. Ringover's entry price needs a 12-month commitment, and month to month costs 45% more. peoplefone's best price needs 24 months. 3CX is annual. Read the exit clause, not just the term.

5. The upgrade trigger. Look at what is missing from the cheapest tier, because that is what you will pay for in month four. Across these ten, the things most often held back are call recording, CRM integration, API access and Microsoft Teams. On 3CX Basic even call queues are missing. On our own entry plan it is phone support and the SLA.

6. Support is sometimes a separate product. peoplefone charges CHF 160 a month for 24/7 cover. Gamma includes 24/7 in the service. We give no phone support at all on self-service. Those are three genuinely different offers, whatever the headline price says.

7. Calls. NFON, peoplefone, 3CX and our own standard plans all bill calls per minute on top of the seat. Ringover and Telavox include national calling. A plan that looks expensive per seat can be the cheaper one once your real minutes are in the model.

Ten questions to ask before you sign

Ask these of any provider, us included.

1. What is the total monthly cost for exactly our headcount, including every phone number, with VAT shown separately?

2. Is a phone number included, and is it one per company or one per person?

3. What is the minimum contract term, and what does it cost to leave in month seven?

4. Which country are the servers in, and can call recordings leave the EU under any circumstances?

5. Can you send me the ISO 27001 certificate, its scope statement and its expiry date?

6. What availability figure is in the contract, and what is the credit if you miss it?

7. What are the support hours, is phone support included at this price, and what is the response time for a total outage?

8. Which of the features we have just discussed are not in this plan?

9. If we leave, how do we take our numbers, our recordings and our call history with us?

10. Our copper line is being switched off. What exactly do we need on site on the day, and who pays for it?

What we could not verify

We are publishing this in full, because a comparison is only as good as its worst-sourced line.

• The most-quoted statistic in this industry does not exist. There is no official EU figure for cloud PBX adoption. We have not published one, and nobody else should without naming a paid report.

• The split between on-premise and hosted extensions in Europe. MZA Ltd measures it and the figure is behind a paywall. We will not infer it from general cloud adoption.

• The number of business fixed lines in the EU. Not published by Eurostat, BEREC or any regulator we checked. The only hard figure anywhere is the UK's roughly 350,000 business premises still on PSTN.

• Annual maintenance as a share of PBX hardware value. Every search result was vendor marketing with no method. We used 15% a year as a stated assumption and put it on its own line so you can replace it.

• Hours a month spent administering a phone system. No credible European study exists. Our figures are assumptions, shown separately in every table for the same reason.

• NFON's price unit, per system or per extension. Its own page says both.

• Ringover's hosting, France only or 17 global data centres. Its own pages say both.

• peoplefone's billing unit and VAT basis. Not on the price table, and the English page drops the table.

• Telavox's VAT basis, minimum term, and whether a number is included. None are on the price page.

• Whether Dstny's ISO certificates cover the Belgian entity. They were announced by the Swedish one.

• Enreach's current ISO 27001. The published certificate expired in March 2026.

• Switch-off dates for Italy, Sweden, Denmark and Finland. Dates circulate. Sources do not.

• Our own ISO 27001 certificate number and validity. Claimed on the Mixvoip accreditations page, not published. We are fixing that.

Frequently asked questions

Of the ten here, the cheapest paid seat is our own Voxbi Starter at €1.20 per user per month, and Voxbi Free is €0 for up to three users. But seat price is a poor way to choose, because numbers, calls and support are priced separately and vary enormously between providers. 3CX is cheapest in a completely different way: €285 a year for an entire 8-call system, with no per-user fee at all.

On our figures, yes, but not because of the hardware. Spread over its tax life, a phone system for 50 people costs about €115 a month, which is cheap. The cost is in the maintenance contract and the staff hours. Once both are counted, a cloud system saves roughly €800 to €1,050 a year at ten people and €2,900 to €4,300 at a hundred. If your maintenance is cheaper than 15% a year, or your system needs almost no attention, rerun the tables with your own numbers.

Yes, clearly. On published business mobile tariffs, ten people on mobiles cost €181 to €230 a month depending on the country, against €150.90 or less for a cloud PBX with unlimited calls and the IT time included. The saving is 32% to 49%, and mobiles still give you no company number, no menu and no queue.

It depends on the country, and in several it has already happened. Germany finished in 2020, the Netherlands in 2022, Spain in May 2025 and Luxembourg in July 2026. The United Kingdom has a hard deadline of 31 January 2027. France runs in lots until around 2030. Belgium is going area by area between 2026 and 2028.

Of the ten, NFON and Voxbi both state that data never leaves the EU, and Telavox names Swedish data centres with EU or EEA storage. Ringover says France only on one page and contradicts it on another. Gamma hosts in the UK and peoplefone in Switzerland, both outside the EU but covered by adequacy decisions. 3CX and Wildix let you choose the region, including regions outside the EU. Dstny names no country at all.

Usually not straight away. Every provider here offers computer and mobile apps, and most support common SIP desk phones you may already own. If you do buy, entry models list around €104 and mid-range between €238 and €279, and a phone is normally written off over eight years.

Yes. Number portability is a legal right across the EU, and every provider here supports porting in. Entry plans differ though: our own Voxbi Free does not allow porting in, while the paid plans do. Ask who pays for the port and how long it takes.

A cloud PBX replaces the phone system: numbers, extensions, menus, queues, voicemail. UCaaS, unified communications as a service, wraps that together with chat, video meetings and presence. Most providers here now sell the second and call it the first.

Words used in this article

PBX: private branch exchange, the system that routes calls inside a company and connects it to the public network.

Cloud PBX or hosted PBX: the same job, run by a provider, reached over the internet and paid monthly.

UCaaS: unified communications as a service. A cloud PBX plus chat, video and presence.

SIP trunk: the connection carrying calls between a phone system and the public network, replacing ISDN lines.

Channel or concurrent call: one call happening at one time. Systems priced per channel, such as 3CX and Voxbi Channel, charge for these instead of for people.

Extension: an internal number for one person or device.

DID or DDI: direct inward dialling, a public number that rings one person directly.

IVR: the recorded menu that says "press 1 for sales".

PSTN and ISDN: the old public and digital telephone networks now being switched off.

Porting: moving an existing number from one provider to another.

E112: the European emergency calling requirement, including passing your location. Worth checking on any plan used away from the office.

Method and sources

Every provider fact here was read from that provider's own website, price list, terms or investor material on 9 September 2026. Where a page renders prices only in a browser, we opened it in a browser rather than reporting an empty result. Where a provider publishes no price, we wrote that instead of quoting a reseller.

Market and regulatory figures come from primary sources: Eurostat for cloud adoption, enterprise counts and labour cost; ARCEP, CNMC and the Bundesnetzagentur for network and switch-off data; Openreach, Proximus, POST Luxembourg, KPN, Telenor and Swisscom for operator announcements; Destatis for sector labour cost; the German federal finance ministry's depreciation tables for equipment life. The single analyst estimate we use, for European UCaaS seats, is attributed to Frost & Sullivan and labelled as an estimate.

Prices change. If you are reading this well after September 2026, check the figure before relying on it. If we have got something wrong, tell us and we will correct it.