10 Best VoIP Phone Services of 2026

1. 1

   Microsoft Teams Phone

   Cloud calling added to Microsoft Teams, sold as a per-user license with optional Microsoft calling plans.

   8.9overall

   Cloud calling added to Microsoft Teams, sold as a per-user license with optional Microsoft calling plans.

   Best forOrganizations already paying for Teams that want desk phone numbers inside the same app.

   Adoption data

   20 millionMicrosoft said on its fiscal 2024 third quarter earnings call that Teams Phone had more than 20 million PSTN users, up nearly 30 percent year over year.

   Microsoft, Microsoft Fiscal Year 2024 Third Quarter Earnings Conference Call (2024): “And Teams Phone continues to be the market leader in cloud calling, now with over 20 million PSTN users, up nearly 30% year-over-year.”

   Teams Phone turns the Teams client into a business phone, so staff who already chat and meet in Teams get a phone number without installing another app. Microsoft lists Teams Phone Standard at $10.00 per user per month on an annual subscription, a pay-as-you-go calling bundle for the US at $13.00, a domestic calling plan bundle at $17.00 and a domestic plus international bundle at $34.00. The bundled prices include communication taxes and fees, which makes them easier to compare with other providers than the bare license. Features cover call queues, auto attendants, shared calling for users who do not need their own number, and Teams-certified desk phones. Microsoft reported more than 20 million PSTN users in 2024, the strongest published adoption figure here. The catch is that every user also needs a Teams license, and companies outside Microsoft's calling plan markets have to bring a third-party carrier, which adds a second contract.

   Strengths

   • +Lowest per-user license price on this list at $10.00 paid yearly
   • +Largest published user figure among the services compared
   • +US calling plan bundle at $17.00 includes domestic calling with taxes and fees

   Limitations

   • −Requires a separate Microsoft Teams license
   • −Standard license alone has no calling minutes; calling rates may apply
   • −Calling plans are only sold in specific markets

   SummaryTeams Phone is the top pick for Microsoft 365 shops replacing desk phones. Budget for the Teams license and a calling plan, not just the $10.00 Standard license.

2. 2

   RingCentral RingEX

   RingCentral's cloud phone system with calling, SMS, team chat and video meetings in one app.

   8.6overall

   RingCentral's cloud phone system with calling, SMS, team chat and video meetings in one app.

   Best forBusinesses that want a standalone phone system with multi-site support and many integrations.

   Adoption data

   600,000RingCentral says more than 600,000 businesses around the world use its products.

   RingCentral, About RingCentral & What Makes Us Unique (2026): “Trusted by over 600,000 businesses around the world”

   RingEX is RingCentral's main business phone product and it covers most of what a desk phone replacement needs at the first tier. Core costs $20 per user per month on annual billing, or $30 month to month, and includes unlimited domestic calling, on-demand call recording, 100 toll-free minutes, 25 SMS per user and video meetings with up to 300 participants. Advanced, at $25 annually, adds CRM integrations, multi-site connection and 1,000 toll-free minutes, while Ultra at $35 adds unlimited storage and device analytics. RingCentral says over 600,000 businesses use its products, which puts it near the top of this list for adoption. The trade-off is price: three other services start at $15 per user, and the AI Receptionist that answers and routes calls is sold separately from $39. The free trial is capped at five users and two desk phones, so larger teams should plan a pilot with sales.

   Strengths

   • +Broad feature set at the entry tier, including meetings and SMS
   • +Large published customer base of over 600,000 businesses
   • +Clear upgrade path from Core to Advanced and Ultra

   Limitations

   • −Core costs $20 annually, above several rivals at $15
   • −Monthly billing raises Core to $30 per user
   • −AI Receptionist is a paid add-on starting at $39

   SummaryRingEX is the most complete standalone phone system here and the best choice for businesses not tied to Microsoft. Expect to pay a little more per seat than the $15 options.

3. 3

   Nextiva

   Business phone and team messaging platform with optional AI for customer conversations.

   8.3overall

   Business phone and team messaging platform with optional AI for customer conversations.

   Best forSmall and midsize businesses that want low per-seat pricing with SMS and a shared inbox.

   Adoption data

   100,000Nextiva says more than 100,000 businesses use it for their communications.

   Nextiva, Nextiva homepage (2026): “100,000+ businesses on main street trust Nextiva for their communications”

   Nextiva's current lineup puts phone and team messaging in every plan and adds AI on top as a metered option. Next Core costs $15 per user per month on annual billing, or $23 monthly, and includes unlimited voice and video, 100 business texts per user, shared inboxes, skills-based routing and a basic CRM with ticketing. Next Engage at $25 adds live chat, 500 texts per user, 2,000 toll-free inbound minutes, single sign-on and virtual fax, and Next Scale at $75 targets sales and service teams with unlimited texting. Nextiva says more than 100,000 businesses use it and that over 1 million users rely on it, which gives it strong adoption for a private company. The XBert AI assistant is billed at $1.50 per conversation, so costs can rise for busy lines. Desk phones work with every plan but are bought separately.

   Strengths

   • +$15 per user on annual billing is among the lowest all-in entry prices
   • +Every plan includes phone and team messaging
   • +Published base of more than 100,000 businesses

   Limitations

   • −Monthly billing raises Core to $23 per user
   • −AI answer features are metered at $1.50 per conversation
   • −Toll-free inbound minutes start on the Engage tier

   SummaryNextiva is the strongest value pick for small businesses replacing desk phones on a budget. Annual billing is what gets the $15 price.

4. 4

   Dialpad

   AI-first business phone system with live transcription and call summaries on every plan.

   8.2overall

   AI-first business phone system with live transcription and call summaries on every plan.

   Best forTeams that want real-time transcripts and AI call notes without a higher tier.

   Adoption data

   $300 millionDialpad announced in October 2024 that it had passed $300 million in annual recurring revenue; it does not publish a current customer count.

   Dialpad, Dialpad surpasses $300M in Annual Recurring Revenue (2024): “today announced it has surpassed $300 million in annual recurring revenue (ARR)”

   Dialpad built its phone system around its own speech AI, and that shows in the entry plan. Standard is listed at $15 per user per month and includes unlimited calls, AI-powered meetings, messaging, real-time transcripts and instant call summaries. Pro, at $25, adds key CRM integrations, 24/7 support and management for multiple offices, while Enterprise is priced by sales. Separate Sell and Support products cover outbound sales from $39 and contact centers from $89 per user. Dialpad offers a 14-day free trial of its Connect phone product. On adoption, Dialpad reports a revenue milestone of more than $300 million in annual recurring revenue in 2024 rather than a customer count, so it scores below vendors that publish customer or seat numbers. Buyers who need help outside business hours or a Salesforce connection should price Pro rather than Standard.

   Strengths

   • +AI transcripts and summaries included at the $15 entry tier
   • +Single app for calls, meetings and messages
   • +Clear jump to Pro at $25 for CRM integrations

   Limitations

   • −CRM integrations require the Pro plan
   • −24/7 support starts on Pro
   • −No published customer count, only a revenue milestone

   SummaryDialpad is the best pick for teams that want AI call notes included at the entry price. Choose Pro if you need CRM sync or round-the-clock support.

5. 5

   Zoom Phone

   Cloud phone system from Zoom with calling, SMS and voicemail tied into Zoom Workplace.

   8.1overall

   Cloud phone system from Zoom with calling, SMS and voicemail tied into Zoom Workplace.

   Best forCompanies already standardized on Zoom meetings that want phones in the same platform.

   Adoption data

   10 millionZoom announced in October 2025 that Zoom Phone had passed 10 million seats worldwide.

   Zoom Communications, Zoom Phone hits 10 million seats, transforming how businesses connect in the AI era (2025): “announced that Zoom Phone, its AI-first, cloud phone system, recently surpassed 10 million seats globally”

   Zoom Phone launched in 2019 and passed 10 million seats in October 2025, according to Zoom's own announcement, which makes it one of the larger cloud phone systems by seat count. It runs inside the same Zoom Workplace app as meetings and chat and includes calling, SMS and voicemail with Zoom's AI Companion. Zoom says it offers PSTN coverage in more than 49 countries and territories, lets customers bring their own carrier, and offers 99.999% uptime. For a company that already pays for Zoom meetings, adding phone keeps calls, meetings and messages under one admin. We could not confirm a US dollar price because Zoom's pricing page served Polish zloty from our location, so we scored value conservatively and marked the price as pending. Check Zoom's US pricing page for the metered and unlimited plans before comparing it with the $15 to $20 options above.

   Strengths

   • +10 million seats is a strong published adoption figure
   • +Wide PSTN coverage across 49+ countries and territories
   • +Same app as Zoom meetings and chat

   Limitations

   • −US dollar pricing did not display from our location, so the price is unverified
   • −Most value comes when the company also uses Zoom Workplace
   • −Plan details sit behind a currency selector

   SummaryZoom Phone is a solid choice for Zoom-first companies and has the seat count to back it. Confirm current US pricing before you commit.

6. 6

   Ooma Office

   Small business phone service with a virtual receptionist and no contract.

   7.7overall

   Small business phone service with a virtual receptionist and no contract.

   Best forVery small businesses that want simple plans and no long-term commitment.

   Adoption data

   49%Ooma reported in its fiscal 2026 annual report that business users made up about 49 percent of its 1.4 million core users as of January 31, 2026.

   Ooma, Inc., Ooma, Inc. Form 10-K for fiscal year ended January 31, 2026 (2026): “As of January 31, 2026, Ooma Business users comprised approximately 49% of our total core users”

   Ooma Office keeps business phone service simple: three plans, monthly pricing and no contract. Essentials costs $19.95 per user per month and includes more than 100 standard features, unlimited calling in the US, Canada, Mexico and Puerto Rico, a virtual receptionist, a mobile app, a free toll-free number and digital fax. Pro at $24.95 adds the desktop app, up to 250 texts per month, 25-person video meetings and call recording, and Pro Plus at $29.95 adds AI transcriptions, CRM integration and 100-person meetings. Ooma's annual report shows business users now make up about 49 percent of its 1.4 million core users, so its business base is sizable even though the company started in home phones. The entry plan lacks texting and a desktop app, which many offices now expect, so most teams will end up on Pro.

   Strengths

   • +No contract on any plan
   • +Virtual receptionist included at the entry tier
   • +Unlimited calling covers four North American markets

   Limitations

   • −Desktop app and texting require Pro at $24.95
   • −Video meetings cap at 25 participants on Pro
   • −Fewer integrations than larger UCaaS vendors

   SummaryOoma Office suits small offices that want a no-contract phone line with a receptionist menu. Plan on Pro if staff need to text customers.

7. 7

   Quo

   Business phone app, formerly OpenPhone, with a number per user and shared team inboxes.

   7.6overall

   Business phone app, formerly OpenPhone, with a number per user and shared team inboxes.

   Best forStartups and small teams that work mostly from mobile and desktop apps.

   Adoption data

   90,000Quo says its platform powers conversations for more than 90,000 businesses.

   Quo, Quo homepage (2026): “powering conversations for 90,000+ businesses”

   Quo, which was called OpenPhone until its rebrand, is an app-based business phone service built for small teams. Starter costs $15 per user per month billed annually ($19 monthly) and includes a new or ported local or toll-free number per user, calling and messaging to US and Canadian numbers, voicemail transcripts, an API and email support. Business, at $23 annually or $33 monthly, adds AI call summaries, group calling, call transfers, phone menus, HubSpot and Salesforce integrations, analytics and auto call recording. Every plan also gets 1,000 free credits for Sona, Quo's AI calling agent, with paid credit tiers above that. Quo says more than 90,000 businesses use it. The service is designed around apps rather than desk phones, and phone menus sit on the second tier, so offices replacing a traditional receptionist setup should budget for Business.

   Strengths

   • +$15 per user on annual billing
   • +Every plan includes a number per user and an API
   • +7-day free trial

   Limitations

   • −Phone menus and call transfers require Business at $23 annually
   • −Included calling and messaging cover US and Canada numbers
   • −Not built around desk phone hardware

   SummaryQuo is a low-cost, app-first option for small teams that mostly call and text from laptops and phones. Offices that need IVR menus should start on Business.

8. 8

   Vonage Business Communications

   Ericsson-owned cloud phone service with mobile, desk phone and contact center options.

   7.5overall

   Ericsson-owned cloud phone service with mobile, desk phone and contact center options.

   Best forBusinesses that want low promotional first-year pricing and per-line plans.

   Adoption data

   100,000Vonage says it serves more than 100,000 businesses worldwide across its APIs, unified communications and contact center products.

   Vonage, About Vonage (2026): “100,000+ businesses served worldwide”

   Vonage, now part of Ericsson, sells its business phone service per line in three tiers. Mobile has a $19.99 list price, cut to $13.99 for the first 12 months, and covers desktop and mobile apps, unlimited domestic calling, SMS, MMS and voicemail. Premium, at $29.99 list or $20.99 on promotion, adds desk phone support, 200-participant video meetings, team messaging, the VBC app center and single sign-on. Advanced, at $39.99 list or $27.99 on promotion, adds 15 hours a month of on-demand call recording, visual voicemail with transcription and call groups. Vonage says it serves more than 100,000 businesses across its products. The promotion makes the first year cheap, but buyers replacing desk phones need Premium, and the list price that applies after year one is higher than Nextiva or Dialpad at the entry level.

   Strengths

   • +30 percent off for the first 12 months on every plan
   • +Mobile plan is a cheap way to add app-only users
   • +Backed by Ericsson

   Limitations

   • −Desk phones need Premium at $29.99 list
   • −Prices rise after the 12-month promotion
   • −Taxes and fees are added on top

   SummaryVonage is a reasonable pick for teams that want a discounted first year and per-line pricing. Compare the post-promotion Premium price with rivals before signing.

9. 9

   8x8 Work

   Unified communications platform with calling, video and messaging on the same data model as 8x8's contact center.

   6.7overall

   Unified communications platform with calling, video and messaging on the same data model as 8x8's contact center.

   Best forMid-size and larger organizations that want phones and a contact center from one vendor.

   8x8 Work combines calling, video meetings, team messaging and file sharing in one app, and its main selling point is that it runs on the same data model as 8x8's contact center, so caller history follows a call from an agent to a back-office employee. The phone side includes auto attendants, intelligent routing, ring groups, call queues, business SMS and MMS, cloud fax and voicemail to email, with native phone service in more than 50 countries. Meetings support HD video for up to 10,000 participants, live transcription and AI summaries, and 8x8 publishes a 99.999% uptime SLA. 8x8 does not list prices publicly, so you need a quote, and its annual report does not give a customer count, which is why adoption and value are scored conservatively. It suits organizations that want to buy phones and a contact center together more than a five-person office.

   Strengths

   • +Shares one data model with 8x8 Contact Center
   • +Native phone service in more than 50 countries
   • +Uptime SLA of 99.999% across the platform

   Limitations

   • −No public price list; quotes come from sales
   • −No published customer count to judge adoption
   • −More platform than a small office needs

   Summary8x8 Work fits organizations that want phones and a contact center on one platform. Small offices will find simpler, priced plans elsewhere on this list.

10. 10

    GoTo Connect

    GoTo's cloud phone system with meetings, messaging and an optional AI receptionist.

    6.5overall

    GoTo's cloud phone system with meetings, messaging and an optional AI receptionist.

    Best forBusinesses that call internationally and want unlimited auto attendants and call queues.

    GoTo Connect is the phone system from the company behind GoTo Meeting and LogMeIn. The base phone system plan includes free calls to 50 countries, unlimited auto attendants and call queues, customizable dial plans, video meetings with up to 250 participants, mobile and desktop apps, and 24/7 support with 99.999% reliability. A second bundle adds an AI receptionist that answers calls around the clock, routes callers and captures their details, with 100 credits included, and the CX tiers add WhatsApp, social, SMS campaigns, web chat and a team inbox. GoTo no longer shows prices on its pricing page, so every plan goes through sales, and it does not publish a GoTo Connect customer count. Both points lower its adoption and value scores. Free calling to 50 countries is unusual at the base tier and is the main reason to request a quote.

    Strengths

    • +Free calling to 50 countries on the phone system plan
    • +Unlimited auto attendants and call queues
    • +Optional AI receptionist with 100 credits included

    Limitations

    • −No public prices; all plans route to sales
    • −No published customer count
    • −CX features require higher bundles

    SummaryGoTo Connect is worth a quote for businesses with heavy international calling. Buyers who want a published price should look higher on this list.

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