Best VoIP for small business: business phone systems compared
The best VoIP service for your small business depends on your team size, the apps you already use and how your customers reach you. Here is a fair, feature-based look at the leading business phone systems and a simple way to choose.
How to choose a business phone system
Before you compare brands, answer five questions:
- How many people need a number? A solo founder and a 50-person team need very different plans.
- Where do people work? Remote and hybrid teams rely on strong mobile and desktop apps.
- What tools do you already use? Native links to Microsoft 365, Google Workspace, Salesforce or HubSpot save time.
- How do customers call you? Call queues, an auto attendant and business hours routing matter if you take many inbound calls.
- Do you need video and chat too? Unified communications (UCaaS) bundles calls, meetings and messaging in one app.
Then run our VoIP speed test to confirm your internet is ready, and use the VoIP cost calculator with real quotes.
The leading small business VoIP providers
RingCentral
RingCentral is one of the best-known cloud phone platforms. Its RingEX plans combine business phone, video meetings and team messaging in one app. It offers a long list of integrations with popular CRM and productivity tools, plus analytics and admin controls that suit growing teams. Great for: businesses that want an all-in-one communications platform with room to scale. Read the full RingCentral profile.
Nextiva
Nextiva focuses on business communications and customer experience. Its plans cover voice, video and messaging, and higher tiers add contact-centre style features such as call queues and reporting. Nextiva is known for its emphasis on customer support. Great for: service businesses that handle many customer calls. Read the full Nextiva profile.
Ooma Office
Ooma Office keeps things simple. It offers a straightforward setup, a virtual receptionist and a mobile app, and it suits very small offices that want a reliable phone system without complexity. Ooma also sells the popular Ooma Telo for homes. Great for: micro businesses and small shops that value simplicity. Read the full Ooma Office profile.
Dialpad
Dialpad is an AI-focused communications platform. It is well known for live transcription and AI call summaries, with clean desktop and mobile apps and strong Google Workspace and Microsoft 365 links. Great for: modern, software-led teams that want AI help on calls. Read the full Dialpad profile.
8x8
8x8 offers cloud phone, video, chat and contact-centre tools on one platform. It is popular with companies that call internationally, since some plans include calling to a wide list of countries. Great for: teams with international customers or offices. Read the full 8x8 profile.
Zoom Phone
Zoom Phone adds cloud calling to the Zoom app many people already use for meetings. Users can move from a phone call to a video meeting in one click, and admins manage everything from the same Zoom dashboard. Great for: businesses already running on Zoom Workplace. Read the full Zoom Phone profile.
Google Voice
Google Voice for Google Workspace gives each user a phone number that works on the web, mobile and desk phones. It is simple, tidy and managed from the Google Admin console. Great for: small teams that live in Google Workspace and want basic, clean calling. Read the full Google Voice profile.
Vonage
Vonage Business Communications provides cloud phone service with mobile and desktop apps, plus a large set of APIs for businesses that want to build calling or messaging into their own software. Great for: businesses that want a flexible phone system with developer options. Read the full Vonage profile.
Side-by-side comparison
| Provider | Best for | Video meetings | Mobile and desktop apps | Notable strength |
|---|---|---|---|---|
| RingCentral | Growing teams | Yes | Yes | Wide integrations, all-in-one app |
| Nextiva | Customer-facing teams | Yes | Yes | Support and customer experience tools |
| Ooma Office | Micro businesses | On some plans | Yes | Simple setup, virtual receptionist |
| Dialpad | Software-led teams | Yes | Yes | AI transcription and summaries |
| 8x8 | International calling | Yes | Yes | Global calling on some plans |
| Zoom Phone | Zoom users | Yes (Zoom) | Yes | One app for meetings and calls |
| Google Voice | Google Workspace teams | Via Google Meet | Yes | Simple admin in Google Workspace |
| Vonage | Custom needs | Yes | Yes | APIs for calls and messages |
See entry prices checked on official pages in our VoIP price comparison, or browse all VoIP provider profiles, including Grasshopper, Quo, Aircall and GoTo Connect. Features vary by plan tier. Confirm the exact features of the plan you choose, and check current pricing on each provider's site.
Features worth paying for
- Auto attendant: a menu ("press 1 for sales") that routes callers without a receptionist.
- Call queues and ring groups: share incoming calls fairly across a team.
- Voicemail to email and transcription: read messages instead of listening.
- Call recording: useful for training and records (follow local consent rules).
- CRM integration: see who is calling and log calls automatically.
- Business SMS: text customers from your business number.
New to the terms? Our cloud PBX guide explains each one.
How to switch without missing calls
- Pick two providers and start free trials.
- Test call quality on your real internet and Wi-Fi.
- Set up users, your auto attendant and business hours.
- Request a number port and keep your old service running until it completes.
- Train your team on the app, then cancel the old service.
Frequently asked questions
What is the best VoIP service for a small business?
There is no single best choice for everyone. RingCentral and Nextiva suit growing teams that want many features, Ooma Office suits very small offices that want simplicity, Dialpad suits teams that want AI tools, and Zoom Phone or Google Voice suit teams already using those platforms.
How much does a business phone system cost?
Most business VoIP plans charge per user per month, and prices depend on the tier and billing term. Check current pricing on each provider's website and use our VoIP cost calculator to compare with your current bill.
Can a small business keep its existing phone number?
Yes. Almost all providers can port your existing local or toll-free number. Keep your old account open until the port is finished.
Do I need desk phones for business VoIP?
No. Many teams use only the mobile and desktop apps. Desk phones remain popular for reception desks and shared spaces.
Is VoIP reliable enough for business?
Yes, with a stable internet connection. Leading providers run their services across multiple data centres, and you can set calls to forward to mobiles if your office internet goes down.
What is the difference between VoIP and UCaaS?
VoIP refers to calls over the internet. UCaaS (unified communications as a service) bundles VoIP with video meetings, chat and other collaboration tools in one platform.
Keep reading
How we write: we explain the technology in plain English and compare providers on published features. We do not invent prices; plans change often, so check current pricing with each provider. Some links may earn us a commission at no cost to you (see our affiliate disclosure).