Quick Answer
There is no single best cloud PBX provider. Three shortlists cover almost every business:
Cloud PBX, hosted PBX, hosted phone system: what is the difference?
Almost none. All of these describe the same arrangement — the PBX software that routes your calls runs on your provider’s infrastructure rather than on a box in your building, and you reach it over your internet connection.
The names differ because they were coined at different times for different audiences. It is worth knowing which is which so you can tell when a vendor is describing something genuinely different rather than just using a newer word.
How we compared cloud PBX providers
We weighted six criteria to compare 21 cloud PBX and hosted PBX providers and kept the 9 best options. We reviewed current official product, pricing and support documentation rather than relying on reseller estimates.
The 9 best cloud PBX providers in 2026
Ordered by overall buyer value, the completeness of the entry plan, price transparency, routing depth and suitability for common business sizes.
Note: Every price below is for the plan that actually includes the features described, not the vendor’s cheapest advertised tier. This is desk research from published documentation.
# | Provider | Best for | Price | Key detail |
| 1 | Calilio | Best value — full feature set on the entry plan | $12/user/month | IVR, recording, voicemail included |
| 2 | RingCentral | Safest mid-market choice | $20/user/month annual | Recording needs Advanced tier |
| 3 | 8x8 | Large multi-site organisations | Custom quote | Multi-level attendant in base plan |
| 4 | Nextiva | Growing multi-location teams | From ~$15/user/month | Sub-menus need Professional |
| 5 | Zoom Phone | Cheapest entry point | From ~$8.5/user/month | Metered plan bills per minute |
| 6 | Dialpad | Most AI at a low price | From ~$15/user/month | Live transcription at entry |
| 7 | GoTo Connect | Rebuilding complex call flows | Custom quote | Visual dial plan editor |
| 8 | Vonage | Modular, pay-for-what-you-add | From ~$13.99/user/month | Many features are add-ons |
| 9 | 3CX | Teams wanting to self-host | Licensed per system | Not per user — cheap at scale |
Pricing reflects each provider’s published rates as of August 2026. Numbers, minutes, regulatory and E911 fees are billed on top by most providers, and several quote privately — confirm the fully loaded cost before signing.
A complete cloud phone system from $12 per user
Multi-level IVR, call recording, business hours, voicemail and number groups on the entry plan. Port your existing numbers, no PBX hardware to buy.
1. Calilio
Best value — the features competitors gate behind a mid tier are on the entry plan
Calilio is a cloud phone system with no on-site hardware at all. You buy numbers from within the workspace, filtering by country, type and area code or pattern, then build call flows that greet callers, present a IVR menu, apply business hours and route to a member, a team or voicemail. Each menu option carries its own “If Unanswered” fallback, so a ringing extension never becomes a dead end.
What earns the top spot is the tier structure rather than any single feature. Multi-level IVR, call recording, business hours, voicemail, call forwarding and number groups are all on the $12 per user per month Standard plan — the exact set that RingCentral, Nextiva and CloudTalk each hold back at least partly for higher tiers. Premium at $28 adds Power Dialer, live monitoring and AI call reports, but there is no plan you must upgrade to simply to get a working phone system.
2. RingCentral
The lowest-risk choice when procurement needs a familiar name
RingCentral is the default mid-market cloud PBX and it earns that position on breadth. Every RingEX plan includes IVR menus and call queues, the integration ecosystem is the largest in business telephony, and AI live call transcription appears even on the entry tier, which is unusually generous.
The catch is what Core leaves out at $20 per user per month billed annually, or $30 monthly. There is no automatic call recording, no CRM integrations, no analytics dashboards and a cap of 25 SMS per user per month. Multi-site management and deeper automation begin on Advanced at $25 annual or $35 monthly, which is where most teams actually land. Contact centre routing is a separate product, RingCX, at $65 per user per month.
3. 8x8
The strongest fit for large, multi-site organisations
8x8 includes a multi-level auto attendant in its base plan, which is genuinely unusual since most vendors hold sub-menus back for higher tiers. It also bundles voicemail transcription, single sign-on and free calling to 14 countries. For organisations spanning many sites, being able to mix and match plans across departments is a real structural advantage over one-size tiers.
The problem is buying it. 8x8 does not publish clear tier pricing, with reported figures spanning a very wide range depending on configuration and contract length, and quotes are required for everything. That opacity is the recurring complaint in buyer comparisons and makes genuine side-by-side evaluation difficult without engaging sales first.
4. Nextiva
Best for growing teams across several locations
Nextiva pairs a solid cloud PBX with particularly good multi-location routing. IVR call routing and AI voicemail transcription are on the base Core plan, which covers a straightforward single-menu setup well, and the platform scales comfortably as sites are added.
Two things to pin down. Multi-level auto attendants with sub-menus require Professional or above, alongside the Salesforce and HubSpot integrations. And Nextiva prices by both tier and team size, with published figures moving around and buyers routinely reporting meaningful discounts on multi-year commitments — so treat any advertised per-seat number as an opening position and get a written quote.
5. Zoom Phone
The cheapest way into a cloud PBX, with one important caveat
Zoom Phone is unusually generous on routing for its price. Unlimited auto attendants and phone trees are available on all plans, including the Metered plan at roughly $10 to $12 per user per month, and voicemail transcription is included at entry level. Calls escalate to a Zoom meeting in one click, which is genuinely useful if your team already lives there.
The Metered plan is the caveat. Every outbound call is billed pay-as-you-go at around three cents a minute, so a rep making more than roughly three hours of outbound calls a month costs more than they would on the Unlimited tier. It is an excellent choice for inbound-heavy or low-outbound teams and a poor one for a calling team.
6. Dialpad
The most AI capability per dollar at the entry tier
Dialpad starts around $15 per user per month and already includes multi-level IVR, call queues, ring groups and international numbers. What makes it unusual at that price is the AI layer — live call transcription and real-time analytics are included at entry, where most vendors reserve them for a top tier.
The trade is breadth rather than depth. Dialpad is a leaner platform than RingCentral or Nextiva, its standard tiers top out around $25 per user per month, and its contact centre product is priced separately. Teams needing heavy multi-site administration or deep compliance controls will outgrow it, but for a business that wants AI without an enterprise contract it is the strongest value here.
7. GoTo Connect
The easiest platform for rebuilding complicated call routing
GoTo Connect’s standout feature is its visual dial plan editor. You build call flows on a canvas by dragging nodes — greeting, menu, schedule, ring group, voicemail — and see the whole routing tree at once. For anyone migrating an intricate on-premise PBX with a decade of accumulated rules, that is significantly less painful than reconstructing the logic through nested settings forms.
Beyond the editor it is a competent, unremarkable cloud PBX. Published pricing starts around $26 per user per month, international calling to a large number of countries is included on higher tiers, and the feature set is mid-market rather than deep. Reviewers consistently praise the routing builder and are less enthusiastic about reporting and support responsiveness.
8. Vonage
Modular pricing — you pay for what you switch on
Vonage takes a different approach to packaging. The base plan is deliberately lean at roughly $20 per user per month, and capabilities are added individually from an à la carte list — call recording, call groups, visual voicemail, receptionist console and others each carry their own fee. If you genuinely need only two of those, you pay for two.
That is either the main attraction or the main problem depending on your requirements. A team wanting recording, groups and analytics can find the total climbs past providers that bundle the same features, and forecasting a bill requires knowing your feature list up front. Vonage also has a strong developer story through its APIs, which matters if you plan to build telephony into your own product.
9. 3CX
The self-hosted option, licensed per system rather than per user
3CX is the outlier in this comparison because it inverts the pricing model. Instead of paying per user per month, you license the system itself based on simultaneous calls, then install it wherever you like — your own server, a cloud instance you rent, or 3CX’s hosting. At larger headcounts that arithmetic becomes very favourable, since adding users does not add licence cost.
What you take on is the administration. Someone has to install it, patch it, secure it and manage the SIP trunk provider you buy calling from separately. For an organisation with in-house IT capability and a preference for control, that is a reasonable trade. For a small team with no technical staff, it reintroduces exactly the maintenance burden most businesses move to the cloud to escape.
How to migrate without downtime
Choosing the provider is the easy half. Almost every disruptive migration comes from skipping steps one and two below, then discovering the problem in the final week.
The Verdict
Cloud PBX is a mature category, so the differences are less about capability than about which tier hides what. Once you price only the plan containing the features you need, the field narrows quickly. RingCentral and Nextiva are the safe mid-market picks provided you budget one tier above entry, 8x8 and GoTo Connect are the ones to shortlist when you are unpicking a complex legacy PBX, and 3CX is genuinely cheaper at scale if you have the IT capability to run it.
For most small and mid-sized teams the deciding question is simply what the entry plan gives you. Zoom Phone is the cheapest way in if your outbound calling is light, Dialpad offers the most AI for around $15, and Calilio is the value pick at $12 because multi-level IVR, recording, business hours and voicemail are all on that plan rather than one tier up. It has no speech recognition and no visual flow designer, which is the honest trade at that price.
Replace your PBX, not your phone numbers
Port your existing numbers to Calilio and get multi-level IVR, business hours, call recording, voicemail and desktop and mobile apps with no hardware to buy. From $12 per user per month with a 14-day money-back guarantee.
