The pricing pages make it look easy. RingCentral wants $20 a user, Nextiva says $15, both promise unlimited calling and an app for your laptop, and either can have you signed up before lunch. Then porting week arrives, half your numbers move and half don't, and the chat agent walking you through it has never heard of your router.
None of that makes the big platforms bad. It means two decisions hide inside “which VoIP provider”: which software you'll use, and who owns the result when something between your office and their cloud misbehaves. The first is on the pricing page. The second decides how your worst week goes.
What the hosted platforms actually sell
RingCentral and Nextiva are hosted VoIP. The phone system runs in their data centers; your desk phones and apps register to it over your internet connection, and you pay per user per month. For that you get genuinely mature software — desktop and mobile apps, business texting, video meetings, voicemail transcription, auto-attendants, CRM integrations. Administration is self-service: a web portal where you build the call flows, assign the numbers and open the support tickets yourself. For a small team with simple needs and decent internet, that model works.
RingCentral: the longest feature list
As of September 2026, RingCentral's published pricing runs $20 per user per month for the Core plan, $25 for Advanced and $35 for Ultra, billed annually — pay month to month and each tier costs about $10 more per user. Advanced is where the useful business features live: automatic call recording, call monitoring, and the Salesforce, HubSpot and Zendesk integrations.
RingCentral's strength is breadth. If your team lives in a CRM, runs video meetings and wants one app for everything, nothing else matches the catalog, and the apps are polished. The flip side is scale: you are one account among hundreds of thousands, and support is built accordingly.
Nextiva: cheaper entry, bundled tools
Nextiva undercuts on paper — about $15 per user per month on annual billing as of September 2026, with a twelve-month minimum, and roughly $25 for the mid-tier Engage plan that adds call recording, online fax and toll-free minutes. Monthly billing is sharply higher, so read the advertised number as the price of a one-year commitment.
Nextiva has spent recent years folding chat, social inboxes and customer-service tools into one suite, and it has a better reputation than most for answering its own phones. If you want calls plus a light helpdesk from one vendor, it's the more natural fit of the two.
On either platform, budget past the sticker: regulatory recovery fees, E911 charges and taxes typically add a few dollars per user per month before anyone makes a call.
Zoom Phone, 8x8 and the rest
Two more names come up. Zoom Phone sells unlimited US and Canada calling at $16 per user per month on annual billing as of September 2026, with a metered plan from $10.50 — hard to argue with if your company already lives in Zoom meetings. 8x8 stopped publishing prices altogether; everything is quote-based now. Neither changes the decision below.
The per-seat math at 5, 15 and 40 users
- 5 seats. RingCentral Core is $100 a month; Nextiva's entry plan about $75. The software fee is trivial at this size — your real exposure is having nobody who knows your network when something breaks.
- 15 seats. Core runs $300 a month, $3,600 a year; Advanced is $375 a month. This is the size where a misconfigured call flow quietly costs more in missed calls than the subscription does.
- 40 seats. You're at $800 to $1,000 a month depending on tier — $9,600 to $12,000 a year before fees. At that spend, price a managed install, or on-premise hardware over three years, before defaulting to a subscription.
All of it assumes annual billing, and none of it includes the fees above.
Where self-service leaves you
The per-user price buys software and a support queue. Three moments show what it doesn't buy.
Porting week. Moving your numbers means paperwork that must exactly match the old carrier's records, and rejections when it doesn't. The platform's porting team processes forms; nobody chases your old provider for you, and if a number strands, you're the project manager. Our guide to switching a business to VoIP covers what goes wrong and in what order.
Call-quality trouble. One-way audio, robotic voices and dropped calls almost always live in your own network or internet connection — so the platform's support can truthfully say “it's not us” while your calls stay broken. The fixes are in our VoIP call-quality guide; the catch is that somebody has to own applying them.
Network design. Nobody at a hosted platform knows your router, your switches, or whether your wiring can power thirty handsets. QoS — the router settings that keep voice ahead of downloads — is entirely your side of the line.
What a managed VoIP install means
Managed VoIP is not different software — underneath, it's often one of these same clouds. The difference is that an installer designs the system around your actual office: surveys the network, configures QoS on the router and switches, stages the handsets, builds the call flows with you, runs the port against both carriers, and afterwards is one number that owns the whole stack. When audio goes one-way at 9 a.m., you call a person who can see your firewall, not a queue that can see your account.
You pay for that — typically a one-time project fee plus the ongoing per-user cost — and for a business where phones are how money arrives, it's usually the cheapest insurance on this page.
The corner where on-premise still wins
A PBX in your own closet with SIP trunks sounds like 2009, but it keeps a niche: offices with many handsets and simple needs, sites with shaky internet that still need internal calls during an outage, and buildings full of analog devices — door phones, fire panels, elevator lines — that a cloud seat can't serve. Those analog lines deserve their own plan before you port anything; see what to do about POTS lines. On-premise trades per-user-forever for hardware you own and someone who has to maintain it.
Choosing by team size and patience
- Under ten users, comfortable in admin portals: sign up with a hosted platform directly. The math is friendly and the mistakes are small.
- Ten to forty users, or phones drive your revenue: a managed install. The premium is small against one bad porting week.
- Analog alarm, fire or elevator lines in the building: plan those first, not last.
- A reception-heavy front desk: decide what answers when nobody picks up — our comparison of answering services and AI receptionists pairs naturally with this one.
When you'd rather someone owned the cutover
Koadi designs and installs VoIP phone systems end to end — cloud or on-premise, handsets, SIP trunks, call flows, number porting — then supports the system afterwards, so the person who set up your QoS is the person who answers when a call sounds robotic. For smaller phone-system fixes, post the problem free, set a fixed price or take bids from vetted, identity-verified technicians, and payment sits in escrow until you approve the work. Remote help covers every US state; on-site visits come through local techs. Or call (848) 266-6363 and describe the phone system you wish you had.