Everyone’s switching to cloud phone systems, but most don’t fully get what they’re buying. A cloud phone system replaces clunky desk phones and on-site PBX setups with software that runs over the internet. This allows your team to handle calls from a laptop or phone, and you can tweak everything from a dashboard in minutes.
That simplicity is why this market is exploding and expected to reach $73.23 billion by 2034. That also makes choosing harder, so I ranked the eight best cloud phone systems based on who they actually work for.
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What is the best cloud phone system right now?
RingCentral is the best cloud phone system right now, especially for growing teams that need reliability at scale. It combines calling, messaging, video, deep integrations, and built-in AI into one platform that actually holds up across multiple locations and complex workflows.
If you want strong alternatives, Dialpad is the best pick for AI-driven features at a lower cost, while Zoom Phone makes the most sense for teams already using Zoom and looking for a simple, budget-friendly setup.
Also: The best business VoIP services
The best cloud phone systems in 2026
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Screenshot by Allison Murray/ZDNET
RingEX bundles calling, messaging, fax, and video into a single app that works across your phone, laptop, and desk hardware. That’s pretty common, but it affects how the backend scales. You can manage routing rules, device policies, and permissions across multiple offices from one dashboard. There are no per-site configurations that break when someone tweaks a setting. For IT teams handling 50, 100, 200 or more seats across locations, that kind of centralized control makes work more manageable.
The integration library backs that up. Salesforce, HubSpot, Zendesk, ServiceNow, Microsoft Teams, and over 300 others connect natively. Most competitors offer a dozen CRM integrations and call it done. RingCentral treats its app ecosystem like infrastructure. If your company already runs a complex tech stack, this is one of the few phone systems that plugs into it instead of asking you to simplify.
Then there’s the AI layer. Every plan from Core up includes call transcriptions, AI-generated summaries, and action items pulled automatically, so there’s no recording needed. In fact, I loved how easy it was to set up the newer AI Receptionist. It handles inbound calls 24/7, answers FAQs, books appointments, and routes callers with context to a live agent. For teams that lose revenue to missed calls after hours, that can be worth considering.
The trade-off? All that depth comes with a complex system. Onboarding takes real effort, the contract structure rewards long-term commitment over flexibility, and the billing can surprise you if you’re not reading the fine print on add-ons.
What it actually costs: Plans run from $30 to $45 per user per month on monthly billing, with annual billing saving roughly 33%. That gap between monthly and annual is intentional. It nudges you into a longer commitment that becomes painful if you need to leave. A 20-person team on Advanced pays $6,000 on annual versus $8,400 monthly. Factor that math into any contract conversation.
RingCentral features: 99.999% uptime SLA | 330+ integrations | AI Receptionist AIR (add-on) | AI call notes & summaries (included Core+) | Real-time & historical analytics (Ultra) | Multi-site administration | 100+ country availability
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Screenshot by Allison Murray/ZDNET
Most cloud phone systems sell you a dialer and leave customer experience as somebody else’s problem. Nextiva does the opposite. Even on its lowest plan, you get a unified inbox that pulls in voice, email, live chat, social media, and review sites like Google and Yelp into one screen. For a 15-person support team dealing with phone calls and Instagram DMs at the same time, that kind of consolidation is usually a feature you’d bolt on from a separate vendor. Nextiva ships it out of the box.
The call flow designer lets you map out exactly what happens when a customer calls. Ring the front desk first, then overflow to a support rep, then route to voicemail with a custom greeting, all based on time of day, day of week, or caller input. The whole thing is drag-and-drop and visual.
I set up a multi-step routing flow with business hours, after-hours, holiday schedule in about ten minutes without touching a single line of configuration. Most competitors either bury this in a text-based menu system or charge extra for visual builders, so Nextiva also earns a point here.
Nextiva doesn’t just check the HIPAA and PCI boxes. It automatically disables unsupported features on compliant channels, so your team can’t accidentally break protocol. For healthcare clinics or retail chains processing payments over the phone, that’s the reason you pick Nextiva over cheaper alternatives.
Now, the one thing that caught me off guard was AI pricing. Nextiva talks up XBert, its AI employee, a lot. But the stuff you’d actually use every day like transcription, call summaries, and smart routing? That doesn’t kick in until Power Suite CX at $75 per user per month. Five times what Core costs. So, at $15 per month, you’re getting a solid phone system, but not the AI-powered one they showed you in the demo.
What it actually costs: Core starts at $15 per user per month annually, Engage at $25, and Power Suite CX at $75. A 10-person team on Core pays $1,800 per year, one of the lowest totals on this list. The jump to AI features at $75 per user is steep and worth factoring in early.
Nextiva features: 99.999% uptime SLA | Drag-and-drop call flow designer | XBert AI employee (Engage/Power Suite CX) | Real-time supervisor dashboards | Unified voice/SMS/video/chat | 24/7 US-based support (historically)
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Screenshot by Allison Murray/ZDNET
Dialpad built its own language model that separates it from other cloud phone tools. As claimed by the founder himself, DialpadGPT was trained on over six billion minutes of real business conversations. So when it transcribes your sales call, catches a shift in customer tone, or flags that a prospect just name-dropped a competitor, that’s not generic AI guessing. That’s DialpadGPT pulling from context that most tools don’t have.
In practice, this means your calls get transcribed in real time with action items pulled out automatically. I watched it catch a callback request I would’ve missed in my own notes. You can also set up a custom company dictionary, so Dialpad learns your brand names, product terms, and acronyms instead of guessing.
For sales teams, there’s a speech coaching feature. Dialpad tracks talk-to-listen ratio, speaking pace, and filler word usage live on screen during calls. If a rep is talking too much or rushing through a pitch, they’ll know before the call ends.
Beyond transcription and coaching, Dialpad also offers predictive AI CSAT scoring on every call, not just surveyed ones. In addition, AI Playbooks tracks whether reps are following sales frameworks like BANT or SPIN, and automated scorecards handle QA without manual review.
But users have also raised concerns. The support quality is inconsistent, and the SMS campaign registration process catches new customers off guard. You port your numbers, get set up, and then find out that outbound texting won’t work for weeks because of US carrier compliance requirements. It’s something I discovered after signing up. But once you’re past the setup friction, Dialpad does the job pretty well.
What it actually costs: Standard starts at $15 per user per month when billed annually, or $27 monthly. Pro jumps to $25. If you need CRM integrations or 24/7 phone support, Standard won’t cut it. Pro is the real starting line for most teams.
Dialpad features: AI transcription and summaries on all plans | Sentiment analysis included at $15 | Real-time Live Coach Cards (Pro+) | Agentic AI for autonomous task execution | Customizable caller ID | Advanced analytics and reporting
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Zoom
If your team already lives in Zoom Meetings, adding Zoom Phone is the most logical move on this list. You don’t need a new app or spend time retraining employees. It even complements small teams and startups, watching their budget.
Zoom also bundles its AI Companion feature at no extra cost across all plans. You can use it to generate post-call summaries, extract action items, and prioritize voicemails based on topics you define. It even lets you ask questions about an ongoing call in real time through the side panel. But then, the AI companion won’t track sentiment mid-call, coach your reps on speaking pace, or score customer satisfaction the way Dialpad does.
A friend who runs a sales team told me to try “Elevate to Meeting” before writing this review, so I tested it on a real pitch call. The prospect asked to see our deck. One tap, the phone call turned into a full Zoom video session, screen share ready, nobody had to hang up and rejoin with a new link.
But don’t expect a lot of depth from Zoom Phone. You’ll only find nine third-party CRM and helpdesk integrations. Reporting, at best, is basic. And if you need real-time queue analytics or team SMS, that’s the Power Pack add-on at $25 per user per month on top of your base plan. If you’re a team of 15 that just needs calls handled, that works. But if you’re scaling past 50 and need data to make decisions, you’ll start bumping into walls.
What it actually costs: Metered starts at $10 per user per month, Unlimited at $15. Bundled plans Pro Plus and Business Plus run $24 to $29, respectively, on monthly billing, less with annual. The Power Pack add-on for queue analytics and advanced SMS is $25 per user per month extra. At $40 total for Unlimited plus Power Pack, you’re paying more than RingCentral Advanced at $35 with less depth.
Zoom Phone features: “Elevate to Meeting” instant call-to-video transition | AI Companion included on Pro Plus+ | 99.999% uptime SLA | BYOC (Bring Your Own Carrier) | Call barge/monitor/whisper/takeover on all plans | Global Select plan for 40+ countries | Single admin portal for Phone + Meetings
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Screenshot by Allison Murray/ZDNET
If your team regularly calls clients in London, Sydney, Frankfurt, and São Paulo, 8×8 is where the math starts working in your favor. Higher-tier plans include unlimited calling to up to 48 countries at a flat rate. Every other platform on this list either meters international calls or buries the cost in add-ons you didn’t budget for.
But 8×8 goes beyond just call rates and lets you provision local numbers in a range of countries. So, if you’re selling into the German market, your prospects see a Frankfurt number on their screen, not a US one. That kind of local presence builds trust before anyone even picks up.
The call management layer is solid as well. Ring groups distribute incoming calls across employees in different time zones, so a single number can reach your support team whether they’re in New York or Tokyo. Supervisors can monitor live calls for training and quality control, while call queues hold callers until someone’s free instead of dumping them to voicemail. Likewise, presence indicators keep you in a loop with your team’s status, so you know who’s available, busy, or away before transferring a call.
On the downside, when you need contact center features or want to negotiate an enterprise deal, everything moves behind a “contact sales” button. The admin console gets the job done, but basic tasks like editing call flows or changing user permissions take more clicks than they should.
What it actually costs: 8×8 doesn’t publish pricing on its site, so you’ll need to request a quote. Plans scale from a basic US/Canada-only tier up to X4 with unlimited calling to 48 countries. Rates are negotiable, and multi-year or high-volume deals tend to get meaningful discounts.
8×8 features: Unlimited calling to up to 48 countries (X4) | 500-participant HD video (X2+) | Local numbers in 100+ countries | Sameroom cross-platform messaging | Call barge/monitor/whisper (X4 only) | Mix-and-match licensing across roles | BYOD and desk phone support
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|
Tool |
Best for |
Starting price |
Biggest drawback |
|
Large teams needing UCaaS depth |
$30 per user per month (billed monthly) |
Cancelation is a documented nightmare, and AI is mostly an add-on. |
|
|
SMBs who prioritize support + reliability |
$15 per user per month (billed annually) |
Limited integrations, plus some require paid add-ons. |
|
|
AI-first teams on a budget |
$15 per user per month (billed annually) |
CRM access is locked to the $25 tier, and video is capped at 10 participants |
|
|
Teams already on Zoom |
$15 per user per month (unlimited) |
Metered plans run out quickly, while advanced AI requires a $24 bundle. |
|
|
International calling at volume |
Custom |
No public pricing. Dated admin UI, as well as AI locked behind Contact Center. |
If your business runs on phone calls, texts, or video meetings (and in 2026, who doesn’t?), a cloud phone system replaces the old hardware-dependent setup with something that works from any device, anywhere. No PBX box in a closet or per-line wiring. You get an app on your laptop or phone that handles calls, messages, and routing through the internet.
But picking a cloud phone system isn’t about finding the “best” platform. It’s about finding the one that fits how your team actually works.
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If you’re already on Zoom, just add Zoom Phone. You’re in the same app, same interface, same admin panel. There’s no reason to switch stacks for a team that’s comfortable in that ecosystem.
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If AI in calls is your top priority, Dialpad at $15 per user per month beats everyone at that price point. Real-time transcription, sentiment tracking, and coaching on the cheapest plan. Nobody else does that.
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If support quality matters more than anything else, Nextiva is still the answer. The 24/7 phone support on every plan and the onboarding experience are consistently praised, even by people who complain about everything else.
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If you’re calling internationally at real volume, get a quote from 8×8. Flat-rate calling to 48 countries on X4 is something no other platform on this list can match.
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And if none of those scenarios describes you, RingCentral Advanced at $25 per user per month is the safest all-rounder. It won’t be the cheapest, the most AI-forward, or the simplest. But it does everything well enough that you won’t outgrow it.
Each platform went through the same hands-on setup, adding users, porting numbers, and building out call flows with business hours, after-hours routing, and voicemail fallback. I placed calls across desktop and mobile, switching between strong and weak networks to catch where audio holds up and where it breaks.
From there, my focus shifted to real workflows. I tried CRM integrations like HubSpot and Salesforce to see how quickly things become usable. I compared AI outputs like transcripts and summaries against real call notes, and pushed admin controls and analytics to see how these systems actually hold up as teams grow.
To balance hands-on testing, I pulled real user sentiment from Reddit and founder communities. That’s where patterns show up, support issues, billing friction, and features that sound great in demos but fall apart in daily use.
Yes, Microsoft Teams Phone is worth it in 2026, but only if your entire company already runs on Microsoft 365. It works well as an add-on for internal calls and basic external routing. It falls short in depth. You won’t get the AI features Dialpad offers, or the integration library RingCentral has. If Teams is already your daily workspace and your calling needs are simple, it makes sense. Otherwise, a dedicated platform gives you more.
Switching to a cloud-based phone system cuts hardware costs, removes location dependency, and gives your team calling, messaging, and video from one app on any device. Traditional landlines tie you to a building. Cloud systems follow your team wherever they work. Most platforms also include features like call recording, AI transcription, and analytics that would cost thousands to add to legacy setups. If your team is even partially remote, the switch pays for itself.
VoIP, or Voice over Internet Protocol, is the technology that routes calls over the internet instead of phone lines. A cloud phone system uses VoIP but wraps it in a full business platform with call routing, team messaging, video meetings, integrations, and admin controls. Think of VoIP as the engine and a cloud phone system as the entire car. Every tool on this list uses VoIP. Not every VoIP tool qualifies as a cloud phone system.
Other cloud phone systems to consider
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Vonage
Vonage makes more sense to startups and small teams that want to start lean and build out selectively. Where most platforms force you into a bundle and charge you for features you’ll never touch, Vonage lets you pick what you actually need.
Plans run from $14 to $28 per user per month, covering unlimited domestic calling, SMS, IVR, 200-participant video, team chat, and on-demand call recording across the tiers. The catch is that essential features like call queuing, auto call recording, and the AI assistant are add-ons.
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Screenshot by Ritoban Mukherjee/ZDNET
Teams Phone is not a standalone recommendation for most buyers but consider it if your team already works with Microsoft 365. The integration with Outlook, SharePoint, OneDrive, and Dynamics is genuinely smooth, and for companies that live in Teams daily, adding calling is a logical consolidation.
Note that M365 suite prices increase depending on your SKU. Copilot AI costs an additional $30 per user per month, and contact center features are nothing but basic. So, if you’re not already an M365 shop, build your phone system stack elsewhere.
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Google Voice works best for small teams that need a clean, simple US-based business number without complexity. Once your team grows or you need any integration with external tools, you’ll outgrow Google Voice fast. Plus, you don’t get AI call summaries, custom automations or shared team inboxes. Even the customer support is entirely self-serve with forums and basic documentation.
The Starter plan at $10 per user per month, plus the $7+ Workspace subscription you’re likely already paying, gets you unlimited domestic calling, voicemail transcription, and SMS. For call recording, you need to switch to the Standard plan at $20 per user per month.
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