The best VoIP provider for most US businesses in 2026 is RingCentral if you need CRM integrations and analytics, Dialpad if you want AI call summaries included at the lowest price, and Nextiva if you want voice, texting and live chat on one bill. Ooma Office is the safest pick for small teams that won’t sign a contract. Zoom Phone makes sense mainly for teams already paying for Zoom.
This guide compares eight business VoIP providers on what you actually pay: the entry price, the plan you really need, the cost at 25, 50 and 100 seats, and the add-ons that appear after the demo. The headline price is the easy part. The gap between annual and monthly billing, AI add-ons and texting limits is what decides your invoice.
Update, November 3, 2026: Every price was re-checked against vendor pricing pages. RingCentral now includes its AI Assistant (AVA) in the Core plan, so our earlier AI add-on cost for RingCentral is gone. Nextiva replaced its Essential plan with NEXT Core ($15/user/month annual). Vonage’s $13.99 rate is a 12-month promotion. Aircall and Google Voice were added, and we now show costs at 50 and 100 seats as well as 25.
- Best overall for growing teams: RingCentral, from $20/user/month (annual). AI Assistant is now included on Core; CRM integrations start on Advanced at $25.
- Best AI for the money: Dialpad Standard at $15/user/month includes real-time transcripts and call summaries with no AI add-on.
- Lowest entry price with a full bundle: Nextiva NEXT Core at $15/user/month annual, but $23 if you pay monthly.
- No contract: Ooma Office ($19.95–$29.95/user/month) is month-to-month on every self-serve plan.
- The biggest hidden cost is billing term: at 25 seats, Nextiva Engage costs $7,500 more a year on monthly billing than on annual.
Best VoIP Providers 2026: 3-Minute Video Comparison
The best VoIP provider for most US businesses in 2026 depends on team size, billing term and whether you need CRM integrations or AI call summaries built in. RingCentral fits growing teams that want analytics, Dialpad wins when AI is included at $15/user, and Ooma Office is the safest no-contract pick under 10 users. This 3-minute video compares all 8 providers in this guide on entry price, the plan you actually need, real 25-seat cost and the fees that inflate your invoice, using the same November 3, 2026 list prices as the tables below.
Key moments in the video:
- 0:00 Same plan, $7,500 more a year?
- 0:15 What we compare in this guide
- 0:29 RingCentral pricing and AI
- 2:29 What a 25-seat team really pays
- 2:45 3 hidden VoIP costs
- 2:58 How to choose by team size
0:00 Same plan, $7,500 more a year? Host: Same VoIP plan, same twenty-five seats. How does one team pay seven thousand five hundred dollars more a year? Analyst: Billing term. Nextiva Engage is twenty-five dollars a user on annual billing, and fifty dollars if you pay monthly. 0:15 What we compare Host: So what are we comparing? Analyst: Eight business VoIP providers, on what you actually pay: the entry price, the plan you really need, and the add-ons that show up after the demo. Prices checked November third, twenty twenty-six. 0:29 RingCentral pricing Host: Number one? Analyst: RingCentral. Core is twenty dollars a user on annual billing, thirty monthly. The big change this year: its AI Assistant is now included on Core. Host: What's the catch? Analyst: Core includes only twenty-five texts per user a month, and CRM integrations start on Advanced, at twenty-five dollars. 0:48 Dialpad pricing Host: Number two, Dialpad. Analyst: Fifteen dollars a user on Standard, with real-time transcripts and call summaries included. No AI add-on. CRM integrations and twenty-four seven support need Pro, at twenty-five. 1:02 Nextiva pricing Host: Three, Nextiva. Analyst: NEXT Core is also fifteen dollars on annual billing, twenty-three monthly, with a hundred texts per user and fifty AI summaries. Engage adds live chat and shared inboxes. Just watch the billing term. 1:18 Zoom Phone pricing Host: Four. Zoom Phone? Analyst: Best if you already pay for Zoom. It's sold with a Workplace license: about sixteen dollars a user for unlimited calling, or ten fifty metered for teams that rarely call. AI post-call summaries are included, but there's no free trial. 1:35 Ooma Office pricing Host: Five? Analyst: Ooma Office. Nineteen ninety-five a user, no contract, and your number transfers free. But Essentials has no texting or call recording, so most teams land on Pro, at twenty-four ninety-five. 1:48 Vonage pricing Host: Six. Vonage looks cheapest, at thirteen ninety-nine. Analyst: That's a twelve-month promotion with a one-year contract. In year two it's nineteen ninety-nine a line. And call recording only arrives on Advanced. 2:02 Aircall pricing Host: Seven, Aircall. Analyst: Built for sales and support teams that live in a CRM, with two hundred fifty plus integrations. Thirty dollars a license, three-seat minimum. AI call summaries need Professional, at fifty. 2:15 Google Voice pricing Host: And eight, Google Voice. Analyst: Ten dollars a user on Starter, for up to ten people, added to Google Workspace. It's a phone line, not a platform: no AI summaries and no CRM integrations listed. 2:29 What does a 25-seat team really pay? Host: So what does a real team pay? Analyst: Take twenty-five seats that need call recording, a CRM integration and AI summaries. Dialpad Pro and RingCentral Advanced both come to six hundred twenty-five dollars a month. Aircall Professional is twelve hundred fifty. 2:45 3 hidden VoIP costs Host: And the hidden costs? Analyst: Three to check. Monthly billing can cost up to twice as much. Promo prices end after year one. And texting allowances run from twenty-five per user to unlimited. 2:58 Which VoIP provider fits your team size? Host: Give me the quick picks. Analyst: One to ten users: Ooma or Google Voice. Ten to fifty: Dialpad, Nextiva or RingCentral. Fifty to a hundred: RingCentral Advanced or Dialpad Pro. Past a hundred, get quotes, not list prices. 3:14 Next step: get a written quote Host: Next step? Analyst: Pick two providers and ask for a written quote with the billing term, AI limits and texting fees itemized. That quote is your real budget. The full comparison is at getomnichannel dot com.Read the video transcript
Best VoIP Providers Compared: Price, AI and Contract Terms
Use this table to cut your shortlist to two or three before booking demos. The “AI on entry plan” column matters more in 2026 than it used to: some providers include call summaries in the base price, others sell them as a per-seat add-on.
| # | Provider | Entry price | Paid monthly | AI on entry plan | Contract | Best for | |
|---|---|---|---|---|---|---|---|
| 1 |  |
$20 (Core) | $30 | AI Assistant (AVA) included. AI Receptionist from $39. | Annual for best rate | Growing teams that need CRM and analytics | |
| 2 |  |
$15 (Standard) | Higher, shown at checkout | Real-time transcripts, call summaries and AI Recaps included. | Annual or monthly | AI-first teams on a budget | |
| 3 |  |
$15 (NEXT Core) | $23 | 50 AI transcriptions and 50 AI summaries. XBert AI agent $99/mo. | 12-month term for annual price | Voice, texting and chat on one bill | |
| 4 |  |
$16 unlimited · $10.50 metered | $18 · $12 metered | AI post-call summaries included. | Annual or monthly | Teams already paying for Zoom | |
| 5 |  |
$19.95 (Essentials) | $19.95 | AI transcription and AI agents priced by sales. | No contract | Small teams that won't sign a contract | |
| 6 |  |
$13.99/line (12-month promo) | $19.99/line | Not listed on plans. Call recording only on Advanced. | 1-year minimum for new accounts | Teams that add features tier by tier | |
| 7 |  |
$30 (Essentials, 3-seat min) | Higher (annual saves 25%) | 50 AI Voice Agent minutes/mo. Call summaries on Professional ($50). | Annual for best rate | Sales and support teams that live in a CRM | |
| 8 | GV Google Voice |
$10 (Starter, up to 10 users) | Not listed | Voicemail transcription. No call summaries listed. | Added to a Google Workspace plan | Google Workspace teams under 10 people |
Prices checked November 3, 2026 on each vendor’s pricing page, linked in each provider section below. Dialpad’s page shows a monthly/annual toggle but lists one price per plan. Zoom’s own product page lists Zoom Phone from $10 to $20/user/month; at checkout it’s sold with Zoom Workplace Basic, which is where the $16 and $10.50 annual figures come from. Taxes and regulatory fees are extra on every plan.
How we evaluated & ranked these 8 providers
Kinjal Trivedi, GetOmnichannel's SaaS and Technology Writer, tested the original six providers (RingCentral, Dialpad, Nextiva, Zoom Phone, Ooma Office and Vonage Business) and compared every provider's published plans on five criteria: total cost at 25, 50 and 100 seats; whether AI transcription and call summaries are included or sold as add-ons; contract and billing-term flexibility; CRM integrations and on which plan they start; and how much of the pricing is published versus quote-only. Rankings weigh fit for a 10–100 person US business first. Aircall and Google Voice were added in November 2026 and are assessed on their published pricing and documentation; they weren't part of the testing round. Providers that need a sales call for every price (such as GoTo Connect) were left off the ranked list because we couldn't model their cost. Every cost figure is a calculation at list price, not a quote. All prices were checked on November 3, 2026.
What Do VoIP Providers Really Cost at 25, 50 and 100 Seats?
On entry plans with annual billing, a 25-person team pays between about $350 and $750 a month, depending on the provider. At 100 seats, the same plans run from about $1,400 to $3,000 a month. The table below multiplies each provider’s published entry price by seat count. It’s the floor, not the final bill.
| Provider | Entry plan | Per user | 25 seats | 50 seats | 100 seats | Watch out for |
|---|---|---|---|---|---|---|
| Vonage Business | Mobile | $13.99 (promo) | $350 | $700 | $1,399 | Promo lasts 12 months; standard rate is $19.99/line ($500 at 25 seats). No call recording. |
| Dialpad | Standard | $15 | $375 | $750 | $1,500 | CRM integrations and 24/7 support need Pro ($25) |
| Nextiva | NEXT Core | $15 | $375 | $750 | $1,500 | Annual price is for new customers with 1–100 employees on a 12-month term |
| Zoom Phone | Workplace Basic + Phone | $16 | $400 | $800 | $1,600 | Metered option is $10.50 plus per-minute charges |
| Ooma Office | Essentials | $19.95 | $499 | $998 | $1,995 | No texting or call recording until Pro ($24.95). $29.95 one-time activation fee. |
| RingCentral | Core | $20 | $500 | $1,000 | $2,000 | 25 texts per user/month on Core. CRM integrations need Advanced ($25). |
| Google Voice | Standard | $20 | $500 | $1,000 | $2,000 | Plus your Google Workspace subscription. Starter ($10) caps at 10 users. |
| Aircall | Essentials | $30 | $750 | $1,500 | $3,000 | AI call summaries need Professional ($50) or the AI Assist add-on |
Two things this table hides. First, most of these entry plans leave out at least one thing a typical business needs: call recording on Vonage Mobile and Ooma Essentials, CRM integrations on RingCentral Core and Dialpad Standard, AI summaries on Aircall Essentials. Second, large accounts rarely pay list price. RingCentral’s pricing page shows the same rates for 6–100 and 100+ users, but at 100 seats you should expect to negotiate.
The plan you’ll probably need: a 25-seat team with recording, CRM and AI summaries
A more realistic comparison is the cheapest plan that covers call recording, a CRM integration and AI call summaries, the three features most sales and support teams ask for in a demo. Here’s what that costs a 25-person team:
| Provider | Plan needed | Per user | Monthly (25) | Yearly (25) | Notes |
|---|---|---|---|---|---|
| Dialpad | Pro | $25 | $625 | $7,500 | AI transcripts and summaries included on every plan |
| RingCentral | Advanced | $25 | $625 | $7,500 | AVA included. $875/month if billed monthly. |
| Vonage Business | Advanced | $27.99 (promo) | $700 | $8,397 | Recording capped at 15 hours/month. No AI summaries listed. $39.99/line after promo. |
| Ooma Office | Pro Plus | $29.95 | $749 | $8,985 | AI transcription priced by sales, so add your quote |
| Aircall | Professional | $50 | $1,250 | $15,000 | Adds power dialer, live monitoring and full API access |
Nextiva, Zoom Phone and Google Voice aren’t in this table on purpose. Nextiva’s pricing page doesn’t show which NEXT plan includes call recording or CRM integrations, so ask in your demo; NEXT Engage at $25/user ($625/month at 25 seats) is the likely match. Zoom Phone includes recording and AI post-call summaries at $16, but confirm the CRM integration you need. Google Voice doesn’t list AI call summaries on any plan.
The takeaway: at the feature level most teams need, Dialpad Pro and RingCentral Advanced cost the same, $25/user. The choice between them comes down to whether you value Dialpad’s AI depth or RingCentral’s analytics, toll-free minutes and texting allowance. See our head-to-head RingCentral vs Dialpad comparison for the detail.
1. RingCentral: Best for Growing Teams That Need CRM Integrations and Analytics
- AI Virtual Assistant (AVA) included on every plan, from Core up
- unlimited domestic calling and on-demand call recording on Core
- CRM integrations and multi-site management from Advanced
- texting allowance of 25, 100 or 200 messages per user/month by plan
- 100, 1,000 or 10,000 toll-free minutes by plan
RingCentral is the pick for a 25–100 person team that wants one phone system to grow into: deep CRM integrations, multi-site management and reporting that scales up to real-time and historical insights on Ultra. The 2026 change worth knowing is AI. RingCentral now includes its AI Virtual Assistant on Core, so the AI add-on that used to make it the most expensive option at 25 seats no longer applies.
2026 pricing: (verified on RingCentral’s pricing page ↗) Core $20, Advanced $25 and Ultra $35 per user/month billed annually, or $30, $35 and $45 billed monthly. The AI Customer Engagement Bundle, which adds AI Receptionist and AI Conversation Expert, is priced by sales. Separate add-ons include AI Receptionist (from $39), Conversational Intelligence (from $60), Business SMS Booster ($25) and extra local or toll-free numbers ($4.99/month each).
The texting allowance is the line to check. Core includes 25 messages per user per month, which a sales team that texts prospects will burn through quickly. If texting matters, Advanced (100 per user) is the realistic starting point, and that’s also where CRM integrations begin. RingCentral’s free trial is limited to five users, and SMS isn’t available during the trial, so you can’t test texting before you buy.
- AI Assistant included from the entry plan
- Call recording included on Core
- Clear upgrade path from Core to Ultra and contact center
- Full pricing published, including add-ons
- Monthly billing costs 50% more on Core ($30 vs $20)
- Only 25 texts per user/month on Core
- CRM integrations start on Advanced, not Core
- AI Receptionist is a separate add-on
2. Dialpad: Best AI Features for the Price
- real-time call transcription and voicemail transcription on every plan
- instant call summaries and AI Recaps with action items and decisions
- unlimited calling, built-in messaging and AI-powered meetings on Standard
- CRM integrations, 24/7 support and multi-office management on Pro
- 14-day free trial
Dialpad is the right choice when AI call features matter and budget is tight. It’s the only provider here whose $15 entry plan includes real-time transcripts, call summaries and AI Recaps with no AI add-on and no usage cap shown on the pricing page. For a team that wants searchable call notes from day one, that’s the most AI per dollar in this list.
2026 pricing: (verified on Dialpad’s pricing page ↗) Standard $15 and Pro $25 per user/month; Enterprise is priced by sales and adds a 99.9% uptime commitment, SSO and unlimited office locations. Dialpad’s page lists one price per plan beside a monthly/annual toggle, so confirm the monthly rate at checkout if you won’t commit for a year. Dialpad notes prices can vary by region and currency.
Standard’s limit is integrations and support. CRM integrations and 24/7 support start on Pro, so a sales team on Salesforce or HubSpot should budget $25, not $15. At that price Dialpad Pro matches RingCentral Advanced exactly. See how Dialpad compares with other picks in Nextiva vs Dialpad and Zoom Phone vs Dialpad.
- AI transcripts and summaries included from $15
- $15 entry plan includes AI others charge extra for
- 14-day free trial to test the AI yourself
- Meetings included alongside calling
- CRM integrations need Pro ($25)
- 24/7 support isn't on Standard
- Monthly rate not listed separately on the pricing page
- Enterprise pricing requires a sales call
3. Nextiva: Best for Voice, Texting and Chat on One Bill
- unlimited voice and video with 100 business texts per user on NEXT Core
- 50 AI transcriptions, 50 AI summaries and 50 AI Answer Assist conversations on Core
- live chat, chatbot, 3 shared team inboxes and 2,000 toll-free inbound minutes on Engage
- unlimited texts and unlimited AI features on Scale
- XBert AI Employee add-on at $99/month for 100 conversations
Nextiva suits a business that wants calling, texting, live chat and AI assistance from one vendor and one invoice. NEXT Core ties Dialpad for the lowest entry price at $15/user/month, and Engage adds web chat and shared inboxes, which most VoIP providers here don’t offer at all.
2026 pricing: (verified on Nextiva’s pricing page ↗) NEXT Core $15 (annual) or $23 (monthly), NEXT Engage $25 (annual) or $50 (monthly), and NEXT Scale $75 per user/month. The annual prices apply to new customers with 1–100 employees on a 12-month or longer term. XBert, Nextiva’s AI agent, costs $99/month for 100 conversations, or $1.50 per conversation. Nextiva’s page offers a demo but doesn’t list a free trial.
Billing term is the biggest variable with Nextiva. Engage costs twice as much on monthly billing: at 25 seats that’s $1,250 a month instead of $625, or $7,500 more a year. If you’re not ready for a 12-month term, compare Nextiva’s monthly rates against Ooma, which has no contract at the same price level. Our RingCentral vs Nextiva comparison covers the feature differences.
- $15 entry price on annual billing
- 100 texts per user on Core, 4× RingCentral Core
- Live chat and shared inboxes on Engage
- AI transcription and summaries included up to plan limits
- Engage doubles on monthly billing ($50 vs $25)
- Annual price limited to 1–100 employee businesses
- No free trial listed, demo only
- AI features capped at 50 or 200 uses below Scale
4. Zoom Phone: Best for Teams Already Using Zoom
- metered or unlimited US and Canada calling
- SMS/MMS, call recording and online fax
- AI post-call summaries, voicemail prioritization and task extraction
- calling, meetings and team chat in the same Zoom app
Zoom Phone is the easiest add for a team that already runs its meetings on Zoom: same app, same admin console, one vendor. It also offers something unusual, a metered plan that charges per minute, which can cost less than a flat rate for teams that make few outbound calls.
2026 pricing: Zoom’s Zoom Phone product page ↗ lists plans from $10 to $20 per user/month. At checkout, Zoom Phone is now sold with a Zoom Workplace Basic license: TechnologyAdvice’s VoIP review ↗ lists unlimited US and Canada calling at $16/user/month billed annually ($18 monthly) and the metered option at $10.50 annually ($12 monthly). Confirm the current bundle on Zoom’s pricing page before you budget.
The bundle cuts both ways. If you already pay for Zoom Workplace, Zoom Phone is a modest add. If you don’t, you’re buying meetings and chat licenses along with your phone line, and there’s no free trial to test it first. Heavy international callers should price their country mix separately, since international calling is metered on every plan. Compare it directly in RingCentral vs Zoom Phone and Nextiva vs Zoom Phone.
- Metered plan suits low-volume callers
- AI post-call summaries included
- One app for calls, meetings and chat
- Call recording and SMS on the entry bundle
- Sold bundled with a Zoom Workplace license
- No free trial
- International calling is metered
- Product page and checkout prices don't match
5. Ooma Office: Best No-Contract VoIP for Small Teams
- no contract on Essentials, Pro or Pro Plus
- free number transfer from your current provider
- texting (250 messages/month), call recording and 25-person video on Pro
- CRM and Salesforce integration, 1,000 texts and 100-person video on Pro Plus
- AI Answering Service, AI Receptionist and AI agent bundle as add-ons
Ooma Office is the low-risk choice for a 5–20 person business that wants reliable calling without signing a contract. Every self-serve plan is month-to-month, and moving your existing number is free, so switching costs are about as low as they get.
2026 pricing: (verified on Ooma’s plans page ↗) Essentials $19.95, Pro $24.95 and Pro Plus $29.95 per user/month, with no contract; Enterprise is priced by sales. There’s a one-time $29.95 activation fee, and prices exclude taxes and fees. AI transcription, AI insights and Ooma’s AI add-ons are priced by sales rather than listed.
Read the Essentials plan closely before you pick it. It doesn’t include texting, call recording or video meetings, so most teams end up on Pro at $24.95. Ooma is also lighter on analytics and CRM depth than RingCentral; native CRM integration only arrives on Pro Plus. See RingCentral vs Ooma Office and Nextiva vs Ooma Office.
- No contract on any self-serve plan
- Free number transfer
- One month-to-month price, no annual premium
- No hardware required
- No texting or call recording on Essentials
- CRM integration only on Pro Plus
- AI features priced by sales, not published
- $29.95 one-time activation fee
6. Vonage Business: Best for Building Up Features Tier by Tier
- unlimited domestic calling, SMS and MMS on the Mobile plan
- desk phone support, 200-person video meetings, team messaging and SSO on Premium
- VBC App Center with over 20 third-party integrations on Premium
- on-demand call recording (15 hours/month) and visual voicemail on Advanced
- one local number's monthly charge waived for the life of the account
Vonage fits a team that wants to start lean and pay for features only when it needs them. The Mobile plan covers calling and texting for remote teams without desk phones, Premium adds video and integrations, and Advanced adds call recording.
2026 pricing: (verified on Vonage’s pricing page ↗) Mobile $19.99, Premium $29.99 and Advanced $39.99 per line/month at standard rates. New accounts get 30% off for 12 months ($13.99, $20.99 and $27.99) with a minimum one-year contract. Vonage’s page shows lower per-extension rates for larger companies; select your company size on the page to see yours. Campaign Registry fees apply for business texting.
The promotion is the catch. The $13.99 figure most comparison sites quote is a first-year price, so budget for the standard rate in year two. And if you need call recording, you’re on Advanced, which makes Vonage one of the pricier options for a recording-plus-CRM setup. Compare it in Vonage vs Dialpad, Vonage vs Zoom Phone and Vonage vs Ooma Office.
- Lowest first-year entry price ($13.99/line)
- Unlimited SMS on the entry plan
- Lower rates for larger companies
- One local number fee waived
- Promo pricing ends after 12 months
- One-year minimum contract for new accounts
- Call recording only on Advanced, capped at 15 hours
- No AI summaries listed on the plans
7. Aircall: Best for Sales and Support Teams That Live in a CRM
- 250+ integrations, call recording, transcripts and IVR on Essentials
- 50 AI Voice Agent minutes per month included
- AI call summaries, power dialer, call whispering and live monitoring on Professional
- AI Assist Pro real-time coaching at $49 per seat/month
- 3-seat minimum on Essentials and Professional
Aircall is built for teams whose calls start and end in a CRM or helpdesk. Its 250+ integrations are available from the entry plan, and Professional adds the tools outbound sales and support managers use every day: power dialer, queue callback, whispering and barge.
2026 pricing: (verified on Aircall’s pricing page ↗) Essentials $30 and Professional $50 per license/month billed annually, with a three-seat minimum; Enterprise is priced by sales with a 25-seat minimum. Annual billing saves 25% versus monthly. Add-ons include AI Assist Pro ($49/seat), Analytics+ ($15/seat), WhatsApp ($10/seat) and extra numbers ($6/month each). Standalone AI Voice Agents start at $100/month.
Aircall is the most expensive option per seat in this guide, so it earns its place only if you’ll use the call center features. A 25-seat team on Professional pays $15,000 a year, twice the cost of Dialpad Pro or RingCentral Advanced. For a broader look at contact-center tools, see our best call center software guide and Aircall vs JustCall.
- 250+ integrations from the entry plan
- Call recording and transcripts on Essentials
- Strong outbound and supervisor tools on Professional
- AI Voice Agent minutes included each month
- Highest per-seat price in this guide
- Three-seat minimum
- AI call summaries need Professional or an add-on
- Best rate needs annual billing (saves 25%)
8. Google Voice: Best for Small Google Workspace Teams
- unlimited domestic calling and US texting with voicemail transcription
- desk phone and ATA support
- call recording, call queues, auto attendants and ring groups on Standard
- automatic call recording and BigQuery reporting on Premier
Google Voice is the simplest option for a small team already on Google Workspace. It’s managed from the same admin console as Gmail and Calendar, and Starter gives up to 10 users a business number for $10 each.
2026 pricing: (verified on Google’s Voice page ↗) Starter $10 (up to 10 users), Standard $20 and Premier $30 per user/month, added to a Google Workspace plan. A single-user Starter option is available without Workspace in the US. Standard adds on-demand call recording, call queues and auto attendants; Premier adds automatic recording and international billing locations.
Google Voice is a phone line, not a full communications platform. There’s no AI call summary, no CRM integration listed and no contact-center tooling, and you pay for Workspace on top. Once you pass 10 users or need auto attendants, Standard at $20 costs as much as RingCentral Core, which includes much more.
- $10 Starter plan for up to 10 users
- Managed inside Google Workspace
- Voicemail transcription included
- Desk phone support
- Needs a Google Workspace subscription (except single-user Starter)
- No AI call summaries or CRM integrations listed
- Auto attendants and recording need Standard ($20)
- No contact-center features
Hidden VoIP Costs to Check Before You Sign
The pricing tables above use list prices. These are the five line items that most often push the real invoice higher, all taken from the vendors’ own pricing pages.
1. Monthly billing can cost up to twice as much
Most providers here charge more if you skip the annual commitment; Ooma is the exception, with one month-to-month price. RingCentral Core is $30 monthly versus $20 annual. Nextiva NEXT Core is $23 versus $15, and Engage is $50 versus $25. Aircall says annual billing saves 25%, and Zoom Phone’s unlimited bundle is $18 monthly versus $16 annual. On a 25-seat RingCentral Advanced plan, monthly billing adds $3,000 a year; on Nextiva Engage it adds $7,500.
Rule of thumb: if your headcount will change by more than about a third within 12 months, compare the monthly rate with Ooma’s no-contract price before you sign annual.
2. Promotional prices that end after year one
Vonage’s $13.99 Mobile rate is a 30% discount for the first 12 months, with a one-year minimum contract. In year two the standard $19.99 applies, so a 25-line team’s bill rises from about $350 to $500 a month. Ask every provider whether the quoted rate is a promotion and what it renews at.
3. AI add-ons beyond what’s included
Most providers now include some AI, but the limits differ. Dialpad includes transcripts and summaries on every plan. RingCentral includes its AI Assistant, but AI Receptionist starts at $39 and Conversational Intelligence at $60. Nextiva includes 50 AI transcriptions and summaries on Core, with XBert at $99/month. Aircall charges $49 per seat for AI Assist Pro coaching. If the demo showed an AI feature, ask which plan it’s on and whether it has a usage cap.
4. Texting limits and registration fees
Business texting allowances vary widely: 25 messages per user per month on RingCentral Core, 100 on Nextiva Core, 250 a month on Ooma Pro, and unlimited on Vonage Mobile. RingCentral sells a Business SMS Booster for $25. US carriers also require business texting registration (10DLC), and Vonage notes that Campaign Registry fees apply. If your team texts customers, ask for the registration fee and the per-message rate above your allowance.
5. Numbers, activation and international calls
Extra phone numbers cost $4.99/month each on RingCentral and $6/month on Aircall. Ooma charges a one-time $29.95 activation fee but transfers your existing number free. International calling is billed per minute on most plans, and rates differ sharply by country and by landline versus mobile; our VoIP cost guide shows how to work out an international budget. Finally, taxes and regulatory fees are added to every plan.
Plan for the porting window. While your numbers move, you'll usually pay both your old carrier and the new provider, so don't cancel the old service until every number is confirmed live on the new system. Ask the new provider for the expected porting timeline for your numbers in writing.
Which VoIP Provider Is Best for Your Team Size?
Team size changes which trade-offs matter. Small teams should optimize for flexibility; larger teams for integrations, reporting and negotiating power.
1–10 users
Pick Ooma Office or Google Voice. Ooma Pro ($24.95) gives a small team texting and call recording with no contract and a free number transfer. If you already run Google Workspace and only need a business line, Google Voice Starter is $10/user for up to 10 users. Choose Dialpad Standard ($15) instead if AI call notes matter to you; it has a 14-day trial so you can check before committing.
10–50 users
Pick Dialpad, Nextiva or RingCentral. Dialpad Standard and Nextiva NEXT Core both start at $15 on annual billing. Choose Nextiva if you also want live chat and shared inboxes (Engage), Dialpad if AI depth matters most, and RingCentral if you expect to need CRM integrations and multi-site management soon. Pick Zoom Phone only if your team already pays for Zoom Workplace.
50–100 users
Pick RingCentral Advanced or Dialpad Pro, both $25. At this size CRM integrations, reporting and 24/7 support stop being optional. Choose Aircall Professional ($50) instead if most of your calls are outbound sales or queued support and managers need live monitoring. Note that Nextiva’s published annual price only applies up to 100 employees.
100+ users
Get quotes, not list prices. RingCentral, Dialpad, Aircall and Ooma all sell enterprise tiers through sales. Ask for the uptime SLA in writing: the difference between 99.9% and 99.999% uptime is about 8.7 hours of downtime a year versus about 5 minutes. Dialpad Enterprise, for example, lists a 99.9% uptime commitment. At this size, SSO, admin controls and a named account manager matter more than a dollar or two per seat.
How to Choose a VoIP Provider: 6 Questions to Ask in Every Demo
These questions come straight from the cost traps above. Ask each provider on your shortlist and get the answers in the quote, not just on the call.
- “Is this the annual or monthly rate, and is any of it promotional?” The gap is 50% at RingCentral and up to 100% at Nextiva, and Vonage’s entry rate is a 12-month promo.
- “Which plan is the AI feature you just showed me on, and is it capped?” Nextiva Core includes 50 AI summaries; RingCentral’s AI Receptionist is an add-on; Dialpad’s summaries are on every plan.
- “How many texts per user are included, and what does registration cost?” Allowances run from 25 per user to unlimited.
- “Which plan includes the CRM integration we use?” It’s Advanced at RingCentral, Pro at Dialpad and Pro Plus at Ooma.
- “What happens to my rate if I add or remove seats mid-contract?” Get the add-seat price and any minimum-seat commitment in writing.
- “What does it cost to leave?” Ask for the early termination terms and how you export call recordings and voicemail if you switch.
What Is a VoIP Phone System?
A VoIP (Voice over Internet Protocol) phone system makes and receives calls over your internet connection instead of a traditional phone line. Calls run through apps on computers and mobile phones, or through IP desk phones, and every user shares the same business numbers, call routing and voicemail. Business VoIP providers usually bundle texting, video meetings and team chat with calling.
Bandwidth is rarely the problem: a single call needs roughly 30 to 90 Kbps in each direction, depending on the codec, so even 10 simultaneous calls use under 1 Mbps. Call quality depends more on latency, jitter and packet loss. Our guide to VoIP internet speed requirements covers the numbers. For background, see what is VoIP, VoIP vs landline, hosted VoIP vs on-premise PBX and what is SIP trunking.
For most small businesses, Dialpad Standard ($15/user/month annual) is the best value because AI transcripts and call summaries are included. Choose Ooma Office if you don't want a contract, RingCentral if you'll need CRM integrations as you grow, and Google Voice if you're a Google Workspace team under 10 people. Google Voice Starter is the cheapest at $10/user/month for up to 10 users, but it needs a Google Workspace plan. Among full business phone systems, Vonage Mobile is $13.99/line for the first year on a promotion, and Dialpad Standard and Nextiva NEXT Core are $15/user/month on annual billing. Entry plans cost $10 to $30 per user per month on annual billing. Plans with call recording, CRM integrations and AI call summaries typically cost $25 to $50 per user. Monthly billing can add anywhere from about 10% to 100%, and taxes, regulatory fees and add-ons such as extra numbers come on top. Dialpad includes real-time transcription, call summaries and AI Recaps on every plan. RingCentral includes its AI Virtual Assistant from Core. Nextiva includes 50 AI transcriptions and summaries on NEXT Core, and Zoom Phone includes AI post-call summaries. AI receptionists and coaching tools are usually paid add-ons. Yes. All eight providers in this guide support number porting, and Ooma transfers numbers free. Keep your old service active until every number is confirmed working on the new system, and ask the new provider for its porting timeline and any per-number fee in writing. No. Every provider here works through desktop and mobile apps, so a team can run entirely on softphones. IP desk phones are optional; RingCentral, Vonage Premium, Google Voice and Ooma support them if your team prefers a handset at the desk. Most offer their lowest price only on annual billing. Ooma Office has no contract on its self-serve plans. Vonage requires a one-year minimum for new accounts on its promotion, and Nextiva's annual price needs a 12-month term. RingCentral, Dialpad and Zoom offer monthly billing at a higher rate. VoIP depends on your internet connection, so an outage or a congested network affects calls. Call quality is sensitive to latency, jitter and packet loss more than raw speed. Emergency calling needs a registered address for each user, and costs can climb through add-ons, texting fees and monthly billing premiums.Frequently Asked Questions
What is the best VoIP provider for small business in 2026?
What is the cheapest VoIP service for business?
How much does a VoIP phone system cost per user?
Which VoIP providers include AI at no extra cost?
Can I keep my business phone number when I switch to VoIP?
Do I need new hardware for a VoIP phone system?
Do VoIP providers require an annual contract?
What are the disadvantages of VoIP?
The Bottom Line: Which VoIP Provider Should You Choose?
For most growing businesses the decision comes down to two providers at the same price. RingCentral Advanced and Dialpad Pro both cost $25/user/month on annual billing and cover call recording, CRM integrations and AI call summaries. Pick Dialpad for AI depth and a free trial, RingCentral for analytics, toll-free minutes and a longer upgrade path.
Outside that, the right choice depends on one constraint. No contract: Ooma Office. Voice plus live chat on one bill: Nextiva, on annual billing. Already on Zoom: Zoom Phone. Outbound sales or support queues: Aircall. A small Google Workspace team: Google Voice.
Next step: pick two providers from the comparison table, ask them the six demo questions above, and compare the written quotes, not the pricing pages. The quote, with billing term, AI limits and texting fees itemized, is your real budget.
How this guide was made: Researched and written by Kinjal Trivedi, SaaS and Technology Writer at GetOmnichannel. Provider evaluations come from Kinjal’s hands-on testing of the original six providers; Aircall and Google Voice are assessed on published pricing and documentation. Prices, plan limits and add-on fees come from each provider’s pricing page, linked in each section and checked on November 3, 2026; Zoom Phone’s checkout bundle pricing is cross-checked against TechnologyAdvice’s VoIP review. The cost tables are illustrative calculations at list price, not quotes.
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