Do I need special hardware or desk phones?

No. Modern VoIP runs over your internet connection through desktop and mobile apps, so you can make and take business calls on the devices you already own. Desk phones are optional and can be added if your team prefers them.

Can I keep my current business phone number?

In most cases yes - number porting is standard, and providers will transfer an existing number over. Porting can take from a few days to a couple of weeks, so keep your old service active until it completes.

What's the difference between a virtual number and a full VoIP phone system?

A virtual number (like Grasshopper or Google Voice) forwards calls and texts to phones you already have and is great for solo users and very small teams. A full VoIP system (like RingCentral or 8x8) adds real call handling - queues, multiple extensions, admin controls, and analytics - for teams that manage higher call volume.

How reliable is VoIP for calls?

Call quality depends heavily on your internet connection. A stable broadband connection with enough upload bandwidth generally delivers clear calls, but weak or congested Wi-Fi will cause dropouts. For critical use, a wired connection and a provider with a solid uptime record matter most.

Do these systems handle business texting (SMS)?

Many do, including OpenPhone, RingCentral, and Dialpad, but availability and message limits vary by plan and by country. If texting customers is central to your business, confirm SMS/MMS support and any per-message or monthly caps before you commit.

Best VoIP & Business Phone Software (2026)

A business phone system replaces desk phones and personal cell numbers with cloud-based calling, texting, and voicemail that work from an app on any device. Instead of buying hardware and paying a phone company for lines, you pay a monthly per-user fee for a business number, extensions, call routing, and features like auto-attendants, call recording, and SMS. For a small or mid-sized business, the payoff is looking professional (one main number, extensions, business hours), keeping work calls off personal phones, and giving a team the ability to route, transfer, and track calls without an on-premise PBX.

The right pick depends less on brand and more on how you actually use the phone. A solo founder or side business mostly needs a second line and a clean voicemail; a sales or support team needs dialers, call queues, and CRM integrations; a growing company needs reliable uptime, admin controls, and room to add seats. Video and team chat may already be covered by tools you own, so an all-in-one 'unified communications' suite is not always the best value.

Start by counting your users, listing must-have integrations (CRM, help desk, Google Workspace), and deciding whether you need real inbound call handling or just a professional number. Then check contract terms, per-user pricing at your seat count, and whether the features you need are on the base tier or locked behind an upgrade.

Our top VoIP & Business Phone picks

Who each pick is actually for

Two facts below, both arithmetic rather than opinion, taken from the review scores in our catalog. Neither is a recommendation, and a high score from a small group of users is a different claim from a high score at scale, so the sample size is shown alongside every figure.

Most reviewed

Dialpad

4.4 across 4,168 reviews

The largest sample in the category belongs to a product that sells the AI layer rather than the phone system: live transcription, call summaries, coaching prompts. Underneath that it is an ordinary business line, so the question is whether anyone will read the transcripts, because that is what you are paying for over a cheaper number. Worth noticing how the rest of the category sorts: the legacy PBX vendors people start their search with (RingCentral at 4.3, 8x8 at 4.1, Vonage at 4.0) all rate below the app-first tools, and the gap is mostly administrative complexity that a business under fifty people never uses.

Highest rated

OpenPhone

4.7 across 2,784 reviews, a score it shares with 2 other tools here and holds on the largest sample

The sample is two thirds the size of Dialpad's, so this is a well-tested score rather than a young vendor with a few hundred delighted early customers. What it is rated for is legibility: shared numbers, threaded texting, and an inbox a new hire understands the same afternoon, with none of the extension and hunt-group machinery that drags the incumbents down. The ceiling is real though. There is no serious contact center inside it, so a business routing queues across departments will outgrow it rather than configure its way out.

None of that decides it for you

You are the only person who answers the phone: Grasshopper - $14 for a business number, extensions, and voicemail, all ringing the cell phone already in your pocket, with no handsets and nothing to administer. You give up call analytics and CRM logging, which a one-person business was never going to read.
You already pay for Google Workspace: Google Voice - $10 a user layered onto a subscription you are already buying, with voicemail transcription and calls that ring inside the apps your team has open anyway. Routing is deliberately basic, so this stops being enough the moment you need a call flow with more than one branch.
Your reps work the phone from inside the CRM: JustCall - Click to dial, automatic logging, and SMS sequences wired to the contact record from $19, roughly a third less than Aircall for the same daily job. Aircall becomes the better answer once you need queues, supervisors, and live monitoring.
Half your calls cross a border: Ringover - Built around international numbers and outbound calling from $21, and rated as highly as anything in the category. US-first providers treat overseas calling as an add-on rather than the main event, and it shows in the coverage and the call quality.
Someone is going to ask for the recording: Net2Phone - Call recording is a headline capability here rather than a reason to upgrade tiers, at $19.99. If your industry expects calls to be retained and retrievable, compare retention windows and export rather than whether recording exists, because every vendor on this page has the checkbox.
The phone is your front desk: Weave - $249 is the highest entry price in the category, and it buys what a clinic or a salon actually runs on: appointment reminders, two-way patient texting, review requests, and payments in the same system as the calls. General VoIP handles the call and none of the follow-up, and the follow-up is what fills next week's calendar.
The support queue is the business: Talkdesk - $85 a seat for genuine contact center machinery: skills-based routing, omnichannel queues, and agent tooling built for people who are on calls all day. It expects an administrator, so with nobody owning the configuration you will get less out of it than from a $20 phone system.

What to look for

Per-user pricing at your real seat count, and whether it's month-to-month or an annual contract - the advertised price is often the annual rate
Which features are on the base plan vs. gated behind higher tiers (call recording, auto-attendant, SMS, analytics, and integrations are common upsells)
Integrations that matter to you - CRM, help desk, and Google Workspace or Microsoft 365 - and whether they're native or require add-ons
Call handling depth: auto-attendants, call queues, business-hours routing, and a visual flow editor if your call paths are complex
Reliability and support - uptime track record, whether support is included, and how you reach a human when calls drop
SMS/MMS and international calling if you text customers or call across borders, since these are frequently metered or extra

Frequently asked questions

Do I need special hardware or desk phones?: No. Modern VoIP runs over your internet connection through desktop and mobile apps, so you can make and take business calls on the devices you already own. Desk phones are optional and can be added if your team prefers them.
Can I keep my current business phone number?: In most cases yes - number porting is standard, and providers will transfer an existing number over. Porting can take from a few days to a couple of weeks, so keep your old service active until it completes.
What's the difference between a virtual number and a full VoIP phone system?: A virtual number (like Grasshopper or Google Voice) forwards calls and texts to phones you already have and is great for solo users and very small teams. A full VoIP system (like RingCentral or 8x8) adds real call handling - queues, multiple extensions, admin controls, and analytics - for teams that manage higher call volume.
How reliable is VoIP for calls?: Call quality depends heavily on your internet connection. A stable broadband connection with enough upload bandwidth generally delivers clear calls, but weak or congested Wi-Fi will cause dropouts. For critical use, a wired connection and a provider with a solid uptime record matter most.
Do these systems handle business texting (SMS)?: Many do, including OpenPhone, RingCentral, and Dialpad, but availability and message limits vary by plan and by country. If texting customers is central to your business, confirm SMS/MMS support and any per-message or monthly caps before you commit.