How we make this list: we compare pricing pages, product documentation and public user reviews. Ratings come from G2, Capterra or Trustpilot, with the date we checked them.
Key takeaways
- VoIP carries business calls as data over the internet, replacing landlines with a cloud system that works on desk phones, computers, and mobiles.
- RingCentral at 20 dollars per user per month and Nextiva at 15 dollars are the safest all-round picks for growing small businesses.
- Zoom Phone at 10.50 dollars per user is the cheapest way to add voice for teams already using Zoom for video meetings.
- Annual billing is usually 20 to 30 percent cheaper than monthly billing, so compare the same billing term across providers.
- Add regulatory fees of a few dollars per seat to every quoted price, plus any AI or CRM add-ons, before comparing totals.
Quick comparison
| Tool | Best for | Starting price | Free plan |
|---|
 RingCentral | Best all-round VoIP for growing teams | $20 per user per month | No |
 Nextiva | Reliability and human support | $15 per user per month | No |
 Zoom Phone | Teams already using Zoom | $10.50 per user per month | No |
 Dialpad | AI features on every plan | $15 per user per month | No |
 Vonage | Businesses that may build on the API | $13.99 per line per month | No |
 Ooma Office | Simple pricing with no contract | $19.95 per user per month | No |
 Grasshopper | Flat-rate business line for solos | $14 per month | No |
 Google Voice | Google Workspace teams needing simple voice | $10 per user per month | No |
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The best VoIP phone services for small business
#1RingCentral
Best for: Best all-round VoIP for growing teams4.1/5 on
G2 (1,076 reviews, checked Oct 2026)
Visit ringcentral.com
Starting price$20 per user per month
Free planNo
RingCentral is the safest all-round pick for small businesses that expect to grow, because it combines calling, team messaging, and video meetings in one app, with more than 200 integrations covering CRMs, help desks, and productivity tools. The Core plan costs 20 dollars per user per month billed annually, and higher tiers add advanced call handling, analytics, and a path to a full contact center as the team scales. For a business that wants one vendor for all communication, RingCentral depth is hard to match.
The drawbacks are monthly price and complexity. Paying month to month raises the Core price to 30 dollars per user, and the platform enterprise features can overwhelm a team of five that only needs reliable calling. RingCentral suits growing businesses that will use its integrations and video features, not just its dial tone.
What we like- Over 200 integrations
- Calling, messaging, and video in one app
- Path to full contact center
Watch out for- Monthly billing costs 30 dollars per user
- Enterprise depth small teams rarely use
- AI features vary by plan
#2Nextiva
Best for: Reliability and human support4.5/5 on
G2 (3,659 reviews, checked Oct 2026)
Visit nextiva.com
Starting price$15 per user per month
Free planNo
Nextiva earns its place with reliability and support: it advertises 99.999 percent uptime on some pages and 99.99 percent reliability in independent comparisons, and reviewers rate its live customer support as the strongest in the category. The Core plan costs 15 dollars per user per month billed annually, and it covers calling, messaging, and basic video, with the Engage tier at 25 dollars adding customer experience tools. For owners who want a person on the phone when something breaks, Nextiva support is a real advantage.
The limits are trial access and tier pricing. Nextiva offers no free trial, so testing requires a paid plan, and higher tiers climb fast as features are added. Monthly billing also costs more than the annual rate. Nextiva suits small businesses that rank reliability and human support above the lowest price.
What we like- Strongest live customer support in the category
- 99.99 percent reliability claims
- Core plan at 15 dollars
Watch out for- No free trial
- Higher tiers get expensive fast
- Monthly billing higher than annual
#3Zoom Phone
Best for: Teams already using Zoom4.6/5 on
G2 (2,672 reviews, checked Oct 2026)
Visit zoom.com
Starting price$10.50 per user per month
Free planNo
Zoom Phone adds cloud calling to the Zoom app teams already use for video, so staff learn nothing new and IT manages one vendor instead of two. The US and Canada Metered plan costs 10.50 dollars per user per month billed annually, and the Unlimited plan costs around 16 dollars, with calls that can escalate to a video meeting in one click. Deployment is fast, often within an afternoon for a small team.
The drawbacks are metering and routing depth. The cheapest plan meters outbound minutes, so heavy callers pay more, and call routing and supervisor tools are thinner than dedicated platforms such as RingCentral or Nextiva. Zoom Phone suits teams already standardized on Zoom that want voice added with minimal friction.
What we like- Cheapest entry for Zoom teams
- Single app for video and calling
- Fast deployment
Watch out for- Metered usage on the cheapest plan
- Weaker routing depth than dedicated platforms
- Supervisor tools thinner
#4Dialpad
Best for: AI features on every plan4.4/5 on
G2 (4,201 reviews, checked Oct 2026)
Visit dialpad.com
Starting price$15 per user per month
Free planNo
Dialpad leads on AI, baking transcription, call summaries, and coaching insights into every plan, not just premium tiers, starting at 15 dollars per user per month billed annually. Sales and support teams get searchable call transcripts, action items, and sentiment cues without buying an add-on, and the interface feels modern next to older VoIP consoles. For AI-first teams, Dialpad is the clearest pick in this guide.
The limits are billing gap and gating. Monthly billing costs far more than the annual rate, and CRM integration sits behind the Pro tier, so teams that need Salesforce or HubSpot sync must pay up. Dialpad suits AI-first sales and support teams that will use transcription and coaching daily.
What we like- AI transcription and summaries on every plan
- Coaching tools for sales teams
- Modern interface
Watch out for- 80 percent billing gap from annual to monthly
- CRM integration gated behind Pro
- Fewer legacy phone options
#5Vonage
Best for: Businesses that may build on the API4.3/5 on
G2 (503 reviews, checked Oct 2026)
Visit vonage.com
Starting price$13.99 per line per month
Free planNo
Vonage offers business phone service starting at 13.99 dollars per line per month billed annually on its Mobile plan, and it stands out for its API platform, which lets businesses build custom voice, messaging, and verification features later. That dual path suits companies that start with standard phone service and later want to embed calling into their own app or workflow. Vonage also offers international calling options for teams with overseas customers.
The drawbacks are feature depth and support. Its standard business phone features are thinner than RingCentral or Nextiva, support reviews are mixed, and add-ons for advanced features raise the total above the entry price. Vonage suits businesses that value the API path and may build on it later.
What we like- API platform for custom voice apps
- Mobile plan at 13.99 dollars
- Global calling options
Watch out for- Business phone features thinner than RingCentral
- Support reviews mixed
- Add-ons raise the total
#6Ooma Office
Best for: Simple pricing with no contract4.5/5 on
G2 (134 reviews, checked Oct 2026)
Visit ooma.com
Starting price$19.95 per user per month
Free planNo
Ooma Office is the simplest option for small offices moving off landlines, with three published plans from 19.95 to 29.95 dollars per user per month, all month to month with no annual contract. The Essentials plan includes North American calling, a virtual receptionist, and mobile apps, and the flat price makes budgeting easy. Ooma call quality and reliability also rate well in independent comparisons.
The limits are gating and integrations. Call recording and CRM integration sit behind higher tiers, and the integration list is shorter than RingCentral. Ooma Office suits very small teams that want simple, contract-free pricing and do not need deep CRM ties.
What we like- Transparent flat pricing
- No annual contract
- North American calling included
Watch out for- Call recording and CRM integration gated behind higher tiers
- Fewer integrations than RingCentral
#7Grasshopper
Best for: Flat-rate business line for solos3.9/5 on
G2 (162 reviews, checked Oct 2026)
Visit grasshopper.com
Starting price$14 per month
Free planNo
Grasshopper gives solo owners and tiny teams a business number on their existing mobile phone for a flat 14 dollars per month billed annually, rather than a per-user charge. It includes custom greetings, voicemail transcription, call forwarding, and business texting, which covers the core needs of a one-person business without buying desk phones or a full phone system. The True Solo plan keeps costs predictable for a single user.
The drawbacks are scale and routing. Grasshopper is not built for larger teams with complex call queues, and advanced routing and integrations are thinner than full VoIP platforms. Grasshopper suits solos and micro-teams that want a professional business line on the phone they already carry.
What we like- Flat monthly rate, not per user
- Business number on your existing phone
- Voicemail transcription
Watch out for- No desk phone hardware focus
- Limited advanced call routing
- Fewer integrations
#8Google Voice
Best for: Google Workspace teams needing simple voice4.1/5 on
G2 (167 reviews, checked Oct 2026)
Visit voice.google.com
Starting price$10 per user per month
Free planNo
Google Voice costs 10 dollars per user per month on its Starter plan, but it requires a Google Workspace subscription, which makes it the lowest-cost option only for teams already paying for Workspace. Setup is simple, numbers work across computers and mobiles, and voicemail transcription and spam filtering come from Google infrastructure. For micro-teams that live in Gmail and Google Calendar, Voice adds calling with almost no learning curve.
The limits are feature depth and dependency. Meaningful features such as multi-level auto attendant and advanced reporting need the Standard plan at 20 dollars or Premier at 30 dollars, and advanced call routing trails dedicated VoIP platforms. Google Voice suits small Workspace teams that need simple, affordable voice without a full phone system.
What we like- Lowest cost for Workspace teams
- Simple setup
- Works across devices with one number
Watch out for- Requires Google Workspace
- Meaningful features need Standard at 20 dollars or Premier at 30 dollars
- Limited advanced routing
How we chose
We compared annual billing entry prices, feature sets, integration depth, contract terms, and support reputation, using 2026 vendor pricing and independent comparisons. We favored providers with published prices and month-to-month or annual options stated clearly, and we noted where monthly billing costs far more than annual. We did not rank providers on advertised uptime alone, since real call quality also depends on your internet connection and network setup.
How to choose the best VoIP phone service for small business
Start by counting users and mapping how they work: desk-based teams benefit from desk phones, while mobile teams need strong apps. Next, check your internet connection, since VoIP call quality depends on stable bandwidth and low latency, and consider a backup connection for outages. Then compare the same billing term across providers, add regulatory fees, and confirm number porting, so you keep your existing business number. Finally, run a trial with real call volume before committing to an annual plan, since call quality and support only show under load.
Frequently asked questions
Can I keep my business phone number when switching to VoIP?
Yes, every provider on this list supports number porting. Start the port before canceling your old service to avoid downtime, and allow several business days for the transfer to complete.
Do I need special hardware for VoIP?
No, you can use computer and mobile apps, but desk phones improve call quality and comfort for staff who spend hours on calls. Most providers sell or recommend compatible desk phones.
How much internet speed does VoIP need?
Each call uses roughly 100 Kbps in each direction, so a small office with 10 simultaneous calls needs about 1 Mbps of stable upload and download capacity, plus headroom for other traffic.
Is VoIP reliable during a power or internet outage?
VoIP depends on power and internet, so outages stop desk phone service unless you have mobile failover or a backup connection. Most providers offer automatic forwarding to mobiles during outages.
What are regulatory fees on a VoIP bill?
Regulatory fees cover taxes and charges such as 911 service and federal programs, and they usually add a few dollars per seat per month. They vary by provider and location, so ask for the all-in total before signing.
Should I choose monthly or annual billing?
Annual billing is usually 20 to 30 percent cheaper, but it locks you in for a year. Choose monthly if you are testing a provider or your team size may change, and switch to annual once you are confident.
Sources we checked (0)
Is your product missing or out of date?
We review this list regularly. Vendors can request a listing, send updated pricing or ask about featured placement.
Shihab Mia · Founder, Rankite
Shihab has 5+ years in B2B and SaaS SEO. He writes Rankite's software buying guides from pricing pages, documentation and public user reviews. More about Shihab.