Microsoft Teams Phone vs RingCentral for Small Business

If your business is already running on Microsoft 365, adding phone calling through Teams looks like the obvious default — it’s already in the client everyone uses. But a dedicated platform like RingCentral still has a real case to make, especially for businesses that need calling features Teams simply doesn’t build for. Here’s how the two actually compare.

Microsoft Teams Phone: What It Costs

Teams Phone Standard, the add-on license that enables calling within Teams, runs around $10 per user per month on top of an existing Teams/Microsoft 365 license — it doesn’t include an actual phone number or minutes on its own. To get a usable phone number with outbound calling included, Teams Phone with Calling Plan runs closer to $17 per user per month, bundling a phone number with roughly 3,000 outbound domestic minutes per month in the US, UK, and Canada, or 1,200 minutes in other supported regions.

RingCentral: What It Costs

RingCentral’s pricing is structured in tiers rather than Teams’ simpler per-user add-on model, and the exact current numbers are worth confirming directly with RingCentral since published tier pricing shifts and third-party sources don’t always agree with RingCentral’s own current page. As a general sense of the structure: an entry-level tier covers unlimited domestic calling with a modest allotment of toll-free minutes and SMS per user, a mid tier adds CRM integrations and multi-site support, and a top tier adds a much larger toll-free minute allotment and device analytics. Treat any specific dollar figure you see cited for RingCentral as approximate until you’ve checked it against a current quote for your business size.

The Core Trade-off

Teams Phone’s advantage is simplicity and integration: if your team already lives in Teams for chat and meetings, adding calling into the same client means no new app to learn, no separate vendor relationship, and a lower incremental cost since you’re building on licensing you’re likely already paying for. RingCentral’s advantage is depth: it’s a standalone unified communications platform built specifically around calling, with more mature call analytics, native SMS, and contact-center-grade add-ons that Teams Phone doesn’t match natively.

When Teams Phone Is the Better Fit

If your business is already committed to the Microsoft 365 ecosystem, your calling needs are relatively straightforward — inbound and outbound calling, basic call routing, voicemail — and you’d rather not manage a separate vendor relationship and separate app for phone service, Teams Phone is the lower-friction, lower-cost option that does the job without extra complexity.

When RingCentral Is the Better Fit

If you’re not deeply committed to the Microsoft ecosystem, need SMS texting from a business number as a core feature, want more advanced call analytics and reporting out of the box, or are considering contact-center-style add-ons like an AI receptionist or conversation intelligence down the line, RingCentral’s purpose-built platform is designed around exactly that kind of depth in a way Teams Phone isn’t trying to compete on.

A Middle Case: Hybrid Setups

Some businesses run RingCentral as their actual phone system while still using Teams for internal chat and meetings, treating the two as separate tools for separate jobs rather than trying to consolidate everything into one platform. This avoids forcing a single vendor to be excellent at both collaboration and calling, at the cost of managing two systems and two bills instead of one.

Don’t Skip Emergency Calling (E911) Setup

Whichever platform you choose, confirm how it handles emergency calling before you go live, not after. Both Teams Phone and RingCentral support E911 dynamic location services, but the setup isn’t automatic — someone has to register each physical location your users work from so that a 911 call from a Teams Phone or RingCentral number routes with the correct address to emergency dispatchers. This matters most for remote and hybrid teams: an employee calling 911 from a home office on a company VoIP number needs that location correctly registered in the system, or dispatchers may only see the business’s main office address instead of where the call is actually coming from. This is a real compliance requirement under federal Kari’s Law and RAY BAUM’S Act rules for multi-line telephone systems, not just a nice-to-have, and it’s worth confirming as part of setup on either platform rather than assuming it works out of the box.

Call Quality Depends on Your Network, Not Just the Platform

Both Teams Phone and RingCentral run over your internet connection rather than a traditional phone line, which means call quality is only as good as your office’s bandwidth and network configuration allow. A shared, congested office internet connection with no quality-of-service (QoS) prioritization for voice traffic can produce choppy calls on either platform regardless of which one you pick — this is a common source of “the new phone system sounds bad” complaints that actually trace back to network configuration rather than the platform itself. If you’re moving a full office onto VoIP calling for the first time, it’s worth having your network reviewed for adequate bandwidth and QoS settings as part of the rollout, not as an afterthought once people start complaining.

Porting Existing Numbers

Whichever direction you go, confirm the number-porting process and timeline directly with the vendor before committing — porting an existing business number into a new phone system typically takes days to a couple of weeks depending on the carrier involved, and planning around that timeline avoids a gap in phone service during the transition.

Don’t Decide on Price Alone

Because Teams Phone’s per-user cost is the lower number on paper, it’s tempting to default to it purely on price. But if your team genuinely needs features RingCentral offers natively — SMS, deeper analytics, contact-center capability — paying more for the platform that actually has those features built in is usually cheaper in the long run than bolting on third-party tools to patch gaps in a cheaper core platform.

A Natural Accessory Either Way

Regardless of which platform you choose, call quality in an open office or shared workspace benefits from decent hardware rather than relying on a laptop’s built-in microphone and speakers. A dedicated USB conference speakerphone is a low-cost upgrade that makes a real difference for small meeting rooms on either platform.

Bottom Line

Teams Phone is the lower-cost, lower-friction choice for businesses already committed to Microsoft 365 with straightforward calling needs. RingCentral is the better fit when you need SMS, deeper call analytics, or contact-center features Teams Phone doesn’t build for natively — confirm current pricing directly with RingCentral rather than relying on a cited figure, since tier pricing shifts.