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
- RingCentral at 20 dollars a user and Nextiva at 15 dollars a user are the safest all-round picks.
- Zoom Phone at 10.50 dollars a user is the cheapest way to add voice to a Zoom shop.
- Dialpad bakes AI transcription and summaries into every plan, starting at 15 dollars a user.
- Grasshopper at 14 dollars a month flat and Google Voice at 10 dollars a user are the best business line apps for solos.
- Vonage suits teams that may later build on voice and messaging APIs.
- Always add taxes, regulatory fees, and SMS limits to the headline price, since those items change the monthly bill more than the plan name suggests.
Quick comparison
| Tool | Best for | Starting price | Free plan |
|---|
 RingCentral | All-round VoIP | $20/user/month | No |
 Nextiva | Reliability and support | $15/user/month | No |
 Zoom Phone | Zoom teams | $10.50/user/month | No |
 Dialpad | AI on every plan | $15/user/month | No |
 Vonage | API-ready teams | $13.99/line/month | No |
 Ooma | Simple small-team pricing | $19.95/user/month | No |
 Grasshopper | Flat-rate solo line | $14/month | No |
 Google Voice | Google Workspace teams | $10/user/month | No |
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The best voip phone service
Starting price$20/user/month
Free planNo
RingCentral is the best all-round VoIP service, with voice, video meetings, team messaging, and business SMS in one platform, plus the deepest integration marketplace in the category. The Core plan costs 20 dollars a user a month on annual billing, with a 14-day free trial, and the platform scales from a small team to a contact center without switching vendors.
Monthly billing runs near 30 dollars a user, and AI receptionist, analytics, and SMS packs cost extra as add-ons. For a team that wants one platform for all communication, RingCentral is the safest pick, and its integration depth means it connects to the CRM, helpdesk, and calendar tools a growing team already uses.
What we like- Deepest integration marketplace
- Voice, video, messaging, and SMS in one platform
- Core plan 20 dollars a user on annual billing
- 14-day trial
Watch out for- Monthly billing near 30 dollars a user
- AI and analytics features cost extra
- Setup depth overwhelms tiny teams
#2Nextiva
Best for: Reliability and support4.5/5 on
G2 (3,659 reviews, checked Oct 2026)
Visit nextiva.com
Starting price$15/user/month
Free planNo
Nextiva is the best VoIP service for teams that prize reliability and live human support. The entry plan combines voice, video meetings, team chat, and business SMS for 15 dollars a user a month on annual billing, with a built-in CRM and analytics that small teams otherwise buy separately. Support quality is consistently rated among the best in the category.
Monthly billing runs near 23 dollars a user, there is no free plan, and the AI receptionist add-on costs near 99 dollars a month. For a customer-facing small business that needs a phone system that works and a human to call when it does not, Nextiva is the strongest pick.
What we like- Voice, video, chat, and SMS from the base plan
- Live human support
- Built-in CRM and analytics
- Core 15 dollars a user annual
Watch out for- Monthly billing near 23 dollars a user
- No free plan
- AI receptionist add-on near 99 dollars a month
#3Zoom Phone
Best for: Zoom teams4.6/5 on
G2 (2,672 reviews, checked Oct 2026)
Visit zoom.us
Starting price$10.50/user/month
Free planNo
Zoom Phone is the cheapest way to add voice to a team already living in Zoom. The US and Canada metered plan costs 10.50 dollars a user a month on annual billing, with native Zoom Meetings integration so calls, video, and chat live in one app. That single-app experience removes the friction of a separate phone system for a Zoom-first team.
Zoom Phone needs a Zoom base, the metered plan charges for minutes beyond the allowance, and monthly billing is cited near 16 to 18 dollars a user depending on the guide. For a team already paying for Zoom, adding Zoom Phone costs less than any standalone VoIP service here. For a team without Zoom, Nextiva or RingCentral is a better standalone pick.
What we like- Cheapest way to add voice to Zoom
- Native Zoom Meetings integration
- US and Canada metered plan 10.50 dollars a user annual
Watch out for- Needs a Zoom base
- Metered plan charges for minutes
- Monthly billing near 16 to 18 dollars a user by guide
#4Dialpad
Best for: AI on every plan4.4/5 on
G2 (4,201 reviews, checked Oct 2026)
Visit dialpad.com
Starting price$15/user/month
Free planNo
Dialpad bakes AI transcription and summaries into every plan, so every call produces a searchable transcript and summary without buying a separate add-on. The Standard plan costs 15 dollars a user a month on annual billing, with a 14-day free trial, and real-time AI coaching helps sales and support teams during live calls.
Monthly billing runs near 27 dollars a user, metered toll-free minutes cost 0.02 dollars a minute, and internet fax, rooms, and contact center features cost extra. For a team that wants AI on every call as a standard feature, Dialpad is the best pick, and its transcription accuracy on names, addresses, and next steps is among the best tested.
What we like- AI transcription and summaries on every plan
- Real-time coaching
- Standard plan 15 dollars a user annual
- 14-day trial
Watch out for- Monthly billing near 27 dollars a user
- Metered toll-free minutes at 0.02 dollars a minute
- Internet fax and contact center cost extra
#5Vonage
Best for: API-ready teams4.3/5 on
G2 (503 reviews, checked Oct 2026)
Visit vonage.com
Starting price$13.99/line/month
Free planNo
Vonage suits businesses that may build on voice and messaging APIs later, since the same vendor offers programmable APIs alongside business phone plans. The Mobile plan costs 13.99 dollars a line a month on annual billing, with a free trial, and teams can add features as needs grow rather than paying for a full unified communications suite upfront.
Standard features such as call recording, call queue, and voicemail transcription cost extra on some plans, and monthly billing runs near 19.99 dollars a line. For a team that wants a phone system today and an API platform tomorrow, Vonage is the best pick. For a team that wants everything included from day one, Nextiva is simpler.
What we like- Programmable voice and messaging APIs
- Mobile plan 13.99 dollars a line on annual billing
- Flexible add-on plans
Watch out for- Standard features such as call recording and transcription cost extra on some plans
- Monthly billing near 19.99 dollars a line
#6Ooma
Best for: Simple small-team pricing4.5/5 on
G2 (134 reviews, checked Oct 2026)
Visit ooma.com
Starting price$19.95/user/month
Free planNo
Ooma Office suits very small teams that want simple pricing with no contracts. The Essentials plan costs 19.95 dollars a user a month, with a 30-day free trial, and user ratings are among the highest in the category. Setup is straightforward, and the pricing has no hidden tier jumps for basic features.
The entry price is higher than Nextiva or Dialpad, and AI features are thinner, so a team that wants AI transcription should pick Dialpad instead. For a small office that wants a phone system that just works, with no contracts and simple billing, Ooma is a solid pick.
What we like- Simple pricing
- No contracts
- Essentials 19.95 dollars a user
- 30-day free trial
- High user ratings
Watch out for- Higher entry price than Nextiva or Dialpad
- Fewer AI features
- Toll-free minutes limited on some plans
Starting price$14/month
Free planNo
Grasshopper is the best flat-rate business line for solos and freelancers, with the True Solo plan at 14 dollars a month on annual billing and unlimited extensions at a flat rate rather than per-user pricing. The virtual phone system needs no hardware, forwards calls to your existing phone, and gives a solo operator a professional number and greeting without a full office system.
Grasshopper is a call-forwarding service, not a full unified communications platform, so shared inboxes, team texting, and deeper routing are thinner than Quo, Dialpad, or Nextiva. For a solo operator who needs a professional number and nothing more, Grasshopper is the cheapest honest option. For a team, a per-user platform fits better.
What we like- Flat-rate business line for solos
- True Solo 14 dollars a month on annual billing
- Unlimited extensions
- No hardware needed
Watch out for- Call-forwarding service, not a full phone system
- Shared inbox and team texting are thinner than rivals
- Monthly billing near 18 dollars
Starting price$10/user/month
Free planNo
Google Voice is the cheapest business number for a team already paying for Google Workspace, with Starter at 10 dollars a user a month plus the Workspace plan. The service is a simple add-on to Workspace, with a free personal plan for individuals that gives one US number with no team routing and no business support.
Shared texting depth is thin on the entry plan, and team routing is simpler than Nextiva or RingCentral, so a team that lives on shared texting should pick a text-heavy platform instead. For a Workspace team that needs a simple business number and nothing more, Google Voice is the best value pick.
What we like- Cheapest business number for Workspace teams
- Starter 10 dollars a user
- Simple add-on to existing Workspace
- Free personal plan for individuals
Watch out for- Needs a Google Workspace plan
- Shared texting depth thin on entry plan
- No team routing depth of rivals
How we chose
We ranked VoIP services on the real monthly bill, not the headline price, flagging where monthly billing runs 40 to 80 percent above annual billing and where taxes, regulatory fees, and SMS limits add cost. We weighted all-round capability for small teams, ecosystem fit for Zoom and Google teams, AI features for sales and support teams, and flat-rate simplicity for solos. We also noted number porting, since several vendors port numbers in at no charge, which removes the switching cost that keeps teams on a bad plan.
What to check before you buy
Add taxes, regulatory fees, and SMS limits to the headline price before comparing, since those items change the monthly bill more than the plan name suggests. Check texting limits, toll-free minutes, and extra number prices, since additional numbers cost 5 to 9.99 dollars a month and metered toll-free minutes add up fast. Confirm number porting is free and test call quality on your actual internet connection before committing, since VoIP quality depends on bandwidth and latency more than on the vendor. Finally, check whether the plan includes the features you need or charges for them as add-ons, since call recording, transcription, and AI receptionist features are add-ons on several plans here.
Frequently asked questions
What is the cheapest VoIP phone service?
Google Voice Starter at 10 dollars a user a month plus Workspace is cheapest for Workspace teams, while Zoom Phone at 10.50 dollars a user is cheapest for Zoom teams. Grasshopper at 14 dollars a month flat is cheapest for a solo operator.
Can I keep my existing phone number?
Yes. Most vendors port numbers in at no charge, including Nextiva, Dialpad, Ooma, and Quo. Confirm porting is free and check the timeline before switching, since porting can take days.
Do VoIP services work without special hardware?
Yes. Most services work on mobile and desktop apps with no extra hardware required. Desk phones are optional, and Grasshopper needs no hardware at all since it forwards to your existing phone.
What extra costs should I expect?
Taxes, regulatory fees, additional numbers at 5 to 9.99 dollars a month, metered toll-free minutes, A2P 10DLC fees near 20 dollars once, and AI add-ons such as Nextiva XBert at 99 dollars a month.
Which VoIP service has the best AI features?
Dialpad bakes AI transcription and summaries into every plan. RingCentral and Nextiva offer AI features as add-ons, while Ooma and Google Voice have thinner AI features.
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.