Small business phone system: cloud VoIP phone systems for small business, from $15 per user
A small business phone system is the software that answers, routes, and records your company calls: one published number, an auto attendant in front of it, and rules that decide whose phone rings. Modern systems are cloud VoIP, so there is no PBX box and no technician visit. Phoner starts at $15 per user per month and is answering calls in about 5 minutes.
Most small teams do not need a phone system. They need one number that never goes unanswered, a greeting that sounds like a real company, and a way to stop giving out a personal cell. That is what this is.
FROM $15/USER/MO · AUTO ATTENDANT ON TEAM $29 · NO CONTRACT, NO HARDWARE
Last updated July 2026
01 · Pick your number
02 · Your phone menu
03 · Incoming call
Press a key to answer the menu yourself
Voicemail to text
transcribed · texted to you · 0:42
Call sheet
Today
This number can be yours in about 5 minutes.
Recording consent laws vary by state and country. You are responsible for lawful use.
$15
Per user per month on Starter, billed yearly. Team is $29, Business $59
~5 min
From sign-up to answering the first call on a working business line
0
Desk phones, wiring, or PBX hardware required to run the whole system
Free
Porting the number already printed on your van, sign, and business cards
What a small business actually gets out of a phone system
01
Nobody has to give out their cell
One published company number covers sales, support, and the after-hours call. Staff answer it from an app on the phone they already carry, and when they go home they mute the business line without muting their own.
02
The number survives turnover
A number that lives on an employee's personal phone leaves when the employee does, and the leads built up over years leave with it. A system number is an account asset you reassign in a click.
03
Callers stop hitting a dead end
An auto attendant answers on the first ring, business hours decide what happens at 7 pm, and a ring group means the second caller reaches a person instead of a mailbox. Missed calls come back as readable text.
04
It costs per user, not per line
Traditional service bills per line, per long-distance minute, and per truck roll. This bills per seat: $15 or $29 a month, unlimited US and Canada calling, and extra numbers at $5.
How to set up a small business phone system in an afternoon
Count the people, not the lines
On a cloud system you buy seats, not phone lines. Count everyone who needs to answer or place business calls. Simultaneous calls are not capped per seat, so a three-person shop does not need four lines to take four calls.
Get the number, or bring yours
Search for a local number in your area code if customers are local, or a toll-free 800 or 833 number if you sell nationally. If the number is already on your signage, port it in free and keep it.
Decide what a caller hears first
Either the phone rings a group of people at once, or an auto attendant answers and offers sales on 1 and support on 2. Set business hours so evenings and weekends roll to a voicemail box that transcribes.
Install the apps and test every branch
Everyone installs iOS, Android, or desktop, or just uses the browser. Call the line from an outside cell and walk each menu option, including the after-hours path. Fifteen minutes of testing prevents the call nobody hears.
The small business phone market in numbers
Primary sources only. These are the figures worth knowing before a salesperson tells you copper is the safe choice.
83.7%
Of the 53 million US business wireline voice connections counted in June 2025, 83.7 percent were interconnected VoIP rather than traditional switched lines.
17.9%
The compounding annual rate at which traditional switched access lines disappeared between June 2022 and June 2025.
35%
Share of Americans who choose a phone call first when contacting customer service, ahead of email at 23 percent.
Source: YouGov (March 2025)
Small business phone system options compared
The four ways a US small business answers its calls today, on the things that decide the purchase.
| Cloud VoIP system (Phoner) | On-premise PBX or KSU | Landlines | Personal cell phones | |
|---|---|---|---|---|
| Typical monthly cost | $15 to $59 per user | Low monthly, but $2,000 to $20,000 up front | Roughly $40 to $70 per line | Whatever the carrier plan costs |
| Up-front hardware | None | Handsets, the control box, and cabling | Handsets, plus install | None |
| Time to go live | About 5 minutes | Weeks, with a scheduled installer | Days to weeks | Immediate |
| Auto attendant | Included on Team at $29 | Yes, once configured by a technician | Only with added hardware | No |
| Adding a person | A checkbox, effective immediately | A service call and often a new handset | A new line order | They use their own phone |
| Works away from the office | Anywhere with internet | Only with a VPN and setup | No | Yes |
| Number survives an employee leaving | Yes, reassign it | Yes | Yes | No, it walks out the door |
| Survives an internet outage | Only if you set cell failover | Depends on the trunk | Usually yes | Yes |
Swipe sideways for the full table
PHONER PRICES ARE OUR PUBLISHED LIST PRICES · PBX, LANDLINE, AND HARDWARE RANGES ARE TYPICAL US SMALL-BUSINESS FIGURES, NOT QUOTES
Where a cloud phone system is the wrong answer
Four honest limits. If one of these describes you, buy something else, and we would rather say so here than after you have paid.
Bad internet is a hard blocker
Each simultaneous call needs roughly 100 kbps up and down. That is a low bar, but a saturated DSL line or flaky rural connection will produce choppy calls no provider can fix. Test your connection before you migrate, and set the number to fail over to a cell so an outage forwards instead of failing.
A one-person business may not need a system at all
If you are solo, never expect two calls at once, and just want to stop handing out your cell, a single virtual number is enough and Google Voice gives one away. A system starts earning its keep when a second person has to answer the same line.
911 uses your registered address, not your location
Emergency calls are routed by the service address on your account. If your team calls 911 from a laptop in another state, dispatch sees the address on file. Keep addresses current per user, and in a genuine emergency dial from a mobile phone.
Texting is not instant on day one
US carriers require A2P 10DLC registration before a business number can reliably send SMS. We file it for you, but approval takes a few days. If your launch depends on texting customers, start the registration before you need it.
Small business phone systems by trade
Small businesses
Two to twenty people, one published number, and nobody who wants a personal cell painted on a van door.
Small business phone systemContractors
Calls answered from a job site, an after-hours path for emergencies, and a number that outlives any one crew member.
Contractor phone systemAccounting firms
A firm line that holds up through tax season, with client calls routed by partner and voicemail readable between appointments.
Accounting firm phone systemLaw firms
A published firm number, consent-aware recording, and intake that never reaches a personal voicemail box.
Law firm phone systemReal estate agents
One number on every sign and listing, answered on the road, with transcripts to read between showings.
Real estate phone systemRestaurants
A menu that handles hours and directions without tying up a host, so the phone stops interrupting service.
Restaurant phone systemChoosing a small business phone system without getting sold to
Nearly every buying guide for this category is written by a vendor, so the feature list is long and the trade-offs are missing. In practice three questions settle it. How many people must be able to answer the same number at the same time? Does a caller need to reach a specific department, or just a person? And is anyone going to answer this thing at 8 pm? If the answers are one, no, and no, you want a virtual phone number and nothing more. If any answer changes, you want the routing layer that a system adds on top.
The word "lines" causes more confusion than anything else in this purchase. On an old key system a line was a physical pair of copper wires, and four lines meant four calls, hard stop. On a cloud system you buy seats and the simultaneous call paths come with them, so a five-seat account can be handling five calls without anyone ordering anything. We unpack that properly on the multi line phone system page, because it is the single most common reason small businesses overbuy.
Once the number is live, the parts that actually change your week are the auto attendant menu that answers instantly, call routing that decides whose phone lights up, and voicemail delivered as text so a missed call is something you read at a stoplight. If you are comparing named vendors rather than categories, the honest roundup is at best VoIP for small business, and the full price breakdown including the fees vendors leave off the plan page is in business phone system cost. If the alternative you are weighing is a per-line quote from your cable company rather than another app, compare them side by side on business phone service.
Small business phone systems: the questions people search
For most US small businesses the best phone system is a cloud VoIP service, because it adds an auto attendant, team routing, and voicemail transcription without hardware or an installer. The right one depends on team size and whether you need departments. Phoner is $15 per user on Starter and $29 on Team, which adds the phone menu.
A cloud small business phone system typically costs $15 to $40 per user per month in the US, and extra numbers run about $5 each. Phoner is $15 per user on Starter, $29 on Team, and $59 on Business, billed yearly. On-premise systems cost less monthly but need $2,000 to $20,000 of hardware up front.
Count the people who need to answer calls, choose a local or toll-free number or port the one you have, decide whether calls ring a group or hit an auto attendant, then install the apps and test every menu branch from an outside phone. On a cloud system the whole sequence takes an afternoon, most of it testing.
If one person answers and calls never overlap, a business phone number alone is enough. You need a system once two people must answer the same line, callers should reach a department, or someone has to cover evenings. The system is the routing layer that sits behind the number, not the number itself.
An auto attendant is the recorded menu that answers instantly and offers options such as press 1 for sales. A small business needs one when calls arrive for clearly different reasons, or when nobody can pick up on the first ring. Under about three people with one job, a simple ring group usually beats a menu.
Yes. On a cloud system the mobile app is the phone, so staff answer the business number on the iPhone or Android already in their pocket. Business calls, texts, and voicemail stay separate from personal ones, and the business line can be silenced outside working hours without silencing the personal number.
On a cloud system the question rarely applies, because seats carry their own simultaneous call paths rather than sharing a fixed number of lines. On traditional service, a common rule is one line for every three to four employees who take calls. Businesses replacing a key system usually discover they were paying for lines they never used at once.
Yes. US phone numbers are portable by law, so the number on your signage and business cards moves with you. Porting into Phoner is free and takes one to two weeks, and your existing line keeps ringing normally for the entire transfer, so you do not lose a call during the switch.
For most US small businesses, yes. Voice needs about 100 kbps per simultaneous call, which any modern broadband connection carries easily. The real risk is not bandwidth but outages, so configure the number to forward automatically to a cell phone if the internet drops. That single setting removes the main failure mode.
A PBX is the physical control box that switched calls inside an office, bought outright and maintained on site. A cloud phone system does the same switching in a provider data center and bills per user per month. Functionally they are similar; the difference is capital cost, install time, and who fixes it when it breaks.
Keep reading
ML-01
Multi line phone system
How many lines a small business really needs, and why cloud seats change the math.
Multi line phone systemCS-01
Cloud phone system
The hosted layer behind the number: menus, routing, and voicemail in software.
Cloud phone systemBN-01
Business phone number
Get the number itself: local or toll-free, live in about 5 minutes.
Business phone numberSB-01 SMALL BUSINESS · Your line is open
Set up your small business phone system this afternoon
Pick a number, point it at your team, and put a real greeting in front of it. From $15 per user per month, month to month, with free porting of the number you already use.
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