Best Business Phone Systems Compared

A business phone system in 2026 is a cloud service: numbers, call routing, voicemail, texting and usually video, delivered through an app on whatever phone or laptop staff already carry. The best business phone systems are separated less by call quality, which is close to identical over a decent internet connection, than by what the cheapest plan actually includes and how far the price on the pricing page is from the price on the invoice.

This comparison covers the seven major providers that still publish per-user prices. Every figure was read from the vendor’s own pricing page on 19 September 2026. Two large names, 8×8 and GoTo Connect, have moved to contact-sales pricing and are left out for that reason; third-party sites still quote their old rates.

The Seven Business Phone Systems Compared

1. RingCentral RingEX: The Full-Featured Default

Entry plan: Core, $20 per user per month on annual billing, $30 monthly | Higher tiers: Advanced $25, Ultra $35 annual | Trial: 14 days, up to 20 lines

RingCentral’s Core plan includes unlimited domestic calling, 100 toll-free minutes, video meetings for up to 300 participants and 25 SMS messages per user per month, according to its plans and pricing page. Annual billing saves about a third against the monthly rate. CRM integrations start at the Advanced tier, and the Ultra plan raises toll-free minutes to 10,000 and texts to 200 per user.

It is the broadest system here and the most expensive month to month. Teams that will use the video, the analytics and the integrations get value from it; a five-person office that just wants calls answered is paying for features it will not open.

2. Nextiva: The Cheapest Annual Rate With Video Included

Entry plan: Core, $15 per user per month on a 12-month term | Monthly equivalent: $23 shown as the undiscounted rate | Higher tiers: Engage $25 annual, Scale $75

Nextiva’s Core plan at $15 on annual billing is the lowest headline rate of the six full systems here, and it includes unlimited calls and video meetings plus 100 texts per user per month, with Outlook and Google contact sync. The pricing page limits the rate to new customers with 1 to 100 employees, and Microsoft Teams and CRM connections are paid add-ons. No free trial is listed; Nextiva sells through a demo instead.

3. Zoom Phone: The Cheapest Way to Add Calling to Zoom

Entry plan: US and Canada Metered, $10.50 annual | Unlimited plan: $16 annual or $18 monthly | Trial: 100 free minutes

Zoom’s metered plan is the lowest price on this list, at $10.50 per user per month, but outbound calls are charged per minute, so it suits desks that mostly receive calls. The Unlimited plan at $16 adds unlimited domestic calling, domestic SMS and MMS, 40-minute meetings for 100 people, and integrations with Salesforce, Slack, Microsoft and Google. Zoom’s site switches currency by location, so check the figure shown from a US address.

4. Dialpad Connect: Unlimited Everything at the Entry Price

Entry plan: Standard, $15 annual, $27 monthly | Higher tier: Pro, $25 annual, $35 monthly | Trial: 14 days

Dialpad’s Standard plan promises unlimited calls, chats and meetings for $15 a month on annual billing, a match for Nextiva’s rate with a free trial included. The catch is the gap to monthly billing, which at $27 is the widest on the list, and CRM integrations that only arrive on the Pro tier. Dialpad’s pitch is AI transcription and call summaries, which are built in rather than sold separately.

5. Ooma Office: Simple, Monthly, No Contract

Entry plan: Essentials, $19.95 per user per month | Higher tiers: Pro $24.95, Pro Plus $29.95 | Trial: None stated

Ooma charges a flat monthly rate with no annual discount and no annual commitment, which makes it the most predictable bill here. Essentials covers unlimited calling to the US, Canada, Mexico and Puerto Rico and one free toll-free number, but it has no video and no texting; Pro adds 250 texts a month and 25-person video, and only Pro Plus brings CRM integration. It is the choice for a small office that wants a phone system, not a collaboration suite.

6. Vonage Business Communications: Priced Per Line

Entry plan: Mobile, $19.99 per line monthly, $13.99 annual | Higher tier: Premium $29.99 monthly, $20.99 annual | Trial: None stated

Vonage prices by line and by company size, with three user-count bands per plan, so the figures above are the first band. The Mobile plan has unlimited domestic calling with SMS and MMS, while video meetings for up to 200 people and the App Center integrations start at Premium. Extensions without a full line are cheaper still, from $14.99.

7. Google Voice: The Cheapest Line for Workspace Users

Entry plan: Starter, $10 per user per month | Requirement: A Google Workspace subscription | Higher tiers: Standard $20, Premier $30

Google Voice Starter costs $10 per user and gives unlimited domestic calling and US texting inside Gmail, Meet and Calendar, per the Workspace product page. It is capped at ten users, has no third-party CRM tier and requires a paid Workspace account, so the real cost is the Voice fee on top of Workspace. For a small business already on Google it is hard to beat; for anyone else it is not a full system.

Annual Prices, Monthly Bills and the Gap Between Them

Every headline price except Ooma’s and Google’s assumes annual billing, and the monthly rate is between 25 and 80 percent higher: RingCentral’s $20 becomes $30, Dialpad’s $15 becomes $27, Vonage’s $13.99 becomes $19.99. Nextiva shows its monthly rate only as a struck-through $23. Any comparison across vendors has to hold the billing term constant, and any budget has to allow for the renewal price, which is rarely on the page.

The second hidden variable is the feature that moves up a tier. Video is in the entry plan at RingCentral, Nextiva, Zoom and Dialpad, absent at Ooma, and Premium-only at Vonage. CRM integration is on nobody’s entry plan except Zoom’s Unlimited. Texting allowances run from none to unlimited. Match the plan to the two or three features the team will use daily, and the ranking changes.

Choosing Between Them

• A team already on Zoom or Google: add Zoom Phone or Google Voice rather than running a second vendor
• The lowest annual rate with video included: Nextiva Core or Dialpad Standard at $15
• No contract and a flat bill: Ooma Office, accepting the missing video and texting
• Analytics, integrations and large meetings: RingCentral, at the highest price
• Desks that mostly receive calls: Zoom’s metered plan at $10.50

Whichever provider wins, put the number porting request in before cancelling the old service, because a port that fails leaves the business unreachable. Businesses weighing this spend alongside their other fixed costs will find the same read-the-fine-print rule applies to business insurance and to payment processing fees.

Frequently Asked Questions

What is the cheapest business phone system?

Zoom Phone’s metered plan at $10.50 per user per month on annual billing, or Google Voice Starter at $10 on top of a Workspace subscription. The cheapest plan with unlimited calling and video included is Nextiva Core or Dialpad Standard at $15 on annual billing.

Do business phone systems need special phones?

No. All seven run as apps on mobile phones and computers. Desk handsets are optional and sold separately, and most providers list compatible models on their sites.

Is annual billing worth it?

Usually, if the headcount is stable. The saving runs from about 30 percent at RingCentral and Vonage to more than 40 percent at Dialpad. A business that expects to shrink or switch within a year should pay monthly or choose Ooma, which has no annual tier.

Why are 8×8 and GoTo Connect not included?

Both removed public per-user prices from their websites and now quote through sales. Older figures on comparison sites are out of date, so they could not be compared on the same basis as the seven above.

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