Best Business VoIP Providers of 2026
RingCentral is our top pick for business VoIP because it pairs a deep set of calling features with messaging, video meetings and a very wide range of integrations in one platform. Nextiva is the strongest alternative for businesses that put support and a straightforward admin experience first, and Ooma Office is our pick for very small teams that want simple setup without a large platform.
Our ranking of the best business VoIP providers
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#1
RingCentral
Best overallFull UCaaS platform with calling, messaging, video and a large integration catalog.
- Calling, business SMS, team chat and video in one app (RingEX)
- Auto attendant, call queues and advanced routing
- AI receptionist and AI call summaries (check plan details)
- Wide range of third-party integrations
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#2
Nextiva
Best for supportBusiness phone and UCaaS platform with a strong focus on customer support.
- Voice, SMS, team messaging and video meetings in one app
- Auto attendant and call routing
- AI receptionist, call transcription and summaries (check plan details)
- Contact center and customer experience tools available
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#3
Dialpad
Best AI featuresAI-forward cloud phone system with built-in transcription and call summaries.
- Built-in AI call transcription and summaries
- Voice, SMS and video meetings
- Contact center product available
- Integrations with popular workspace and CRM tools
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#4
Zoom Phone
Best for Zoom usersCloud phone system built into the Zoom app many teams already use.
- Calling inside the Zoom app alongside meetings and chat
- Call queues, shared lines, voicemail and call recording
- Domestic SMS and MMS on its plans (check plan details)
- AI post-call summaries and an AI receptionist option
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#5
GoTo Connect
Best for business continuityCloud phone system from GoTo with meetings, a contact center tier and a business continuity add-on.
- Cloud phone system with custom auto attendant and call management
- Business SMS and softphone apps for desktop and mobile
- Meetings and a contact center tier (CX plans)
- Add-ons including AI receptionist and business continuity
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#6
Ooma Office
Best for very small teamsSimple, small-business phone system that is quick to set up.
- Virtual receptionist and extensions
- Mobile app for calling on the go
- Works with desk phones and Ooma hardware
- Higher tiers add desktop app and video meetings
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#7
8x8
Best for contact centerUnified platform that pairs business calling with contact center tools.
- Voice, video and team chat in one platform
- Contact center features on some plans
- Call analytics and reporting
- Calling options for teams in multiple countries (check plan details)
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#8
Vonage Business Communications
Best for customizing with APIsEstablished business phone platform with room to customize through APIs.
- Cloud calling through desktop and mobile apps
- Business SMS, video meetings and team messaging
- Virtual receptionist and call recording
- Integrations including Microsoft Teams and Salesforce
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#9
Grasshopper
Best virtual numberVirtual business phone number that rings on the phones you already have.
- Business number used on your existing phones
- Virtual receptionist and extensions
- Business texting and voicemail transcription
- Desktop and mobile apps
A business VoIP provider replaces a traditional desk-phone line with calling over the internet. The best ones go further and bundle voice, business texting, video meetings and team chat into one app, which the industry calls UCaaS (unified communications as a service). Others stay focused on doing business calling simply, and a few are really virtual number services that forward calls to the phones you already own.
We ranked nine well-known US providers on calling features, collaboration and integrations, how clearly they explain pricing and contracts, reliability and support features, and how easy they are to set up and manage. Plans, bundled features and prices change often, and many providers give their best rate only on annual terms, so always check the current plan details on the provider's site before you sign.
Business VoIP compared side by side
Sort by rank, name or score. Tick "Compare" on any two or three providers above to see them side by side.
| Best for | Service type | Channels | Link | |||
|---|---|---|---|---|---|---|
| #1 | RingCentral |
Best overall | Full UCaaS | Voice, SMS, video, team chat; contact center add-on | 9.3 | Visit site (RingCentral, opens in a new tab) |
| #2 | Nextiva |
Best for support | Full UCaaS | Voice, SMS, video; contact center on some plans | 9.0 | Visit site (Nextiva, opens in a new tab) |
| #3 | Dialpad |
Best AI features | Full UCaaS | Voice, SMS, video; contact center on some plans | 8.8 | Visit site (Dialpad, opens in a new tab) |
| #4 | Zoom Phone | Best for Zoom users | Full UCaaS | Voice, SMS, video, team chat; contact center add-on | 8.6 | Visit site (Zoom Phone, opens in a new tab) |
| #5 | GoTo Connect | Best for business continuity | Full UCaaS | Voice, SMS, meetings; contact center on CX plans | 8.5 | Visit site (GoTo Connect, opens in a new tab) |
| #6 | Ooma Office | Best for very small teams | Phone system | Voice, SMS; video on some plans | 8.4 | Visit site (Ooma Office, opens in a new tab) |
| #7 | 8x8 |
Best for contact center | Full UCaaS | Voice, SMS, video, chat; contact center on some plans | 8.2 | Visit site (8x8, opens in a new tab) |
| #8 | Vonage Business Communications |
Best for customizing with APIs | Full UCaaS | Voice, SMS, video, team messaging; contact center add-on | 7.8 | Visit site (Vonage Business Communications, opens in a new tab) |
| #9 | Grasshopper |
Best virtual number | Virtual number | Voice, SMS | 7.5 | Visit site (Grasshopper, opens in a new tab) |
Top picks by use case
The most complete mix of calling, messaging, video and integrations in one platform.
Read our RingCentral reviewA capable phone system from a company known for its support and simple admin.
Read our Nextiva reviewBuilt-in call transcription and summaries without a separate tool.
Read our Dialpad reviewCalling inside the Zoom app and admin portal your team already knows.
Read our Zoom Phone reviewQuick setup and simple plans for small offices and storefronts.
Read our Ooma Office reviewA business number on the phones you already own, with no new hardware.
Read our Grasshopper reviewHow we chose
We score business VoIP providers on how well they cover the everyday needs of a small or mid-sized business, not on lab tests of call quality (which depends heavily on your own internet connection and network). Each provider gets a weighted score out of 10 across five criteria, based on our review of its public plan pages, feature documentation, admin tools and published terms.
Core business calling: auto attendant, call routing and queues, ring groups, voicemail transcription, call recording, business texting and mobile and desktop apps.
Whether video meetings, team chat and contact center options are available in the same platform, and how well it connects to common CRM, help desk and productivity tools.
Are plan tiers and included features published clearly? Are annual versus monthly terms, add-on costs, taxes and fees and cancellation terms easy to find?
Published service status pages, failover and call-forwarding options when your internet goes down, E911 handling, security documentation and the support channels on offer.
How quickly a non-specialist can add users, set up call flows, port numbers and manage devices from the admin portal.
Buying guide: how to choose
VoIP, UCaaS or a virtual number?
Business VoIP simply means business calls over the internet. Most providers now sell UCaaS platforms, which bundle calling with business texting, video meetings and team chat in one app.
A virtual number service, such as Grasshopper, is lighter. It gives you a business number and a virtual receptionist, then forwards calls to the phones you already have. It is simple and quick, but it is not a full phone system. Read our guide to what business VoIP is.
Features that matter most
- Auto attendant ("press 1 for sales") and call routing rules.
- Call queues and ring groups if several people answer the same line.
- Business texting, which in the US generally requires registration before you can send at scale.
- Mobile and desktop apps so staff can take business calls anywhere.
- Call recording and voicemail transcription, if you need them for training or records.
Check which of these are included in the plan tier you are considering, not just in the provider's top plan.
Contracts, add-ons and the real cost
Many providers show their lowest rate for annual billing. Monthly billing usually costs more but is easier to leave. Ask what is included per user and what costs extra, such as additional numbers, toll-free numbers, call recording storage or contact center seats.
Taxes and regulatory fees are usually added on top of the advertised plan price, so ask for an all-in quote before you sign.
Reliability, E911 and your network
Call quality depends heavily on your internet connection and office network. Before switching, check that your connection is stable and consider a business-grade router that can prioritize voice traffic.
Ask how calls are handled if your internet goes down, for example forwarding to mobile apps or other numbers. Make sure every user and location has a correct E911 address registered, and update it when people move.
Keeping your number
You can usually move (port) your existing business number to a new VoIP provider. Do not cancel your old service until the port is complete, and make sure the account details on the port request match your current provider's records exactly. Our number porting guide walks through the steps.
Head-to-head comparisons
RingCentral vs Nextiva
Choose RingCentral if you want the broadest feature set and the widest choice of integrations in one platform.
ComparisonRingCentral vs Zoom Phone
Choose RingCentral if you want a dedicated communications platform with deep call routing and a wide integration catalog.
ComparisonOoma Office vs Grasshopper
Choose Ooma Office if you want a real small-business phone system that works with desk phones and apps.
ComparisonDialpad vs 8x8
Choose Dialpad if you want built-in AI features like call transcription and summaries in a modern, easy-to-use app.
Frequently asked questions
What is the best business VoIP provider?
In our editorial ranking, RingCentral is the best overall business VoIP provider because it combines advanced calling features with messaging, video meetings and a wide range of integrations. Nextiva is our pick for support and Ooma Office for very small teams.
How much does business VoIP cost?
Most providers charge per user per month, with lower rates on annual terms and higher tiers adding features. Taxes, fees and add-ons are usually extra. Plan prices change, so check the current price and ask for an all-in quote.
What is the difference between VoIP and UCaaS?
VoIP is the technology for making calls over the internet. UCaaS is a cloud platform that bundles VoIP calling with business texting, video meetings and team chat in one service.
Can I keep my business phone number if I switch to VoIP?
In most cases, yes. Moving a number to a new provider is called porting. Keep your old service active until the port is complete and make sure your account details match your current provider's records.
Do I need new phones for business VoIP?
Not necessarily. Most providers let you call from desktop and mobile apps. If you want desk phones, check which models the provider supports.
Is a virtual phone number the same as VoIP?
A virtual number service like Grasshopper gives you a business number and forwards calls to your existing phones. It uses some of the same technology, but it is more limited than a full VoIP phone system with call queues, desk phones and video.
What is E911 and why does it matter?
E911 lets emergency services see the registered address of the caller. With VoIP, you must register an accurate address for each user or location and keep it updated, because calls are not tied to a fixed line.
How do you rank business VoIP providers?
We score each provider on calling features, collaboration and integrations, pricing transparency and contracts, reliability and support features, and ease of setup and admin. See our full methodology on the How We Rank page.
Business VoIP guides
All business voip guidesHow to Choose a Business Phone System
A practical checklist for choosing a business phone system: decide what type you need, list must-have features, compare contracts and test before you commit.
Business VoIP guideHow to Port Your Business Number to VoIP
Step-by-step guide to moving your business phone number to a VoIP provider: what you need, what affects timing, and how to avoid a failed or delayed port.
Business VoIP guideWhat Is Business VoIP and How Does It Work?
Business VoIP explained in plain English: how internet calling works, how it differs from UCaaS and virtual numbers, and what you need to get started.
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