ADAM PULSE Zoom Phone vs Microsoft Teams Phone: differences, integration, and which to choose
Short answer
Zoom Phone and Microsoft Teams Phone are overlapping cloud PBXs in different ecosystems. Choosing the Teams client does not require Microsoft as the PSTN carrier. Combining them — Zoom Operator Connect or Zoom Phone Direct Routing behind the native Teams dialer — is often the real answer. There is no universal winner. Pick the client experience first, then the PSTN path, then validate features. Replacing one platform with the other is only the right design when you actually want a single vendor for both collaboration and telephony.
Architecture map: Zoom + Microsoft Teams: Complete Integration Guide. Feature split: Operator Connect vs Direct Routing.
What is Zoom Phone, and what is Microsoft Teams Phone?
Zoom Phone is Zoom’s cloud telephony: numbers, call queues, auto receptionists, SMS where eligible, desk phones, and the Zoom Workplace or plug-in calling experience.
Microsoft Teams Phone is Microsoft’s telephony inside Teams: the native Calls app, Teams Phone licensing, and PSTN connectivity through Microsoft Calling Plans, Operator Connect, Teams Phone Mobile, or Direct Routing.
They solve the same job — business calling — from different control planes. A comparison that pretends one has to win is usually a procurement argument, not an architecture.
Does choosing the Teams client pick Microsoft as the carrier?
No. Microsoft’s PSTN connectivity article lists Operator Connect and Direct Routing specifically so a third-party operator can supply PSTN while users stay in Teams. Zoom documents itself on both of those Microsoft paths. The user can be in Teams Calls while Zoom owns the numbers and the PSTN.
The opposite is also true: users can live in Teams for chat and still place calls in Zoom Phone (embedded Zoom, or Zoom Workplace beside Teams) without enabling Teams Phone at all. That is a different architecture. Name it.
How do the platforms differ in practice?
| Decision | If you standardise on Zoom Phone as the PBX | If you standardise on Teams Phone as the PBX |
|---|---|---|
| Calling client | Zoom Workplace, Zoom Assistant, or Zoom UI inside Teams | Native Teams Calls / dialer |
| PSTN | Zoom native numbers, BYOC, or Provider Exchange | Microsoft Calling Plan, Operator Connect, Teams Phone Mobile, or Direct Routing |
| How Zoom still participates | Zoom is the phone system. Teams is collaboration. | Zoom can be the Operator Connect operator or the Direct Routing PSTN provider |
| SMS / fax | Zoom Phone SMS/fax where eligible, including in the Teams plug-in per KB0088117 | Not via Zoom Operator Connect. Do not assume Teams Phone inherits Zoom SMS |
| Admin plane | Zoom web portal | Teams admin center, plus Zoom if Zoom is the operator |
When is combining them the real answer?
When the organisation will not leave Microsoft 365, users already live in Teams, and telephony quality, numbers, or operating model point at Zoom. That is Operator Connect or Direct Routing, not a rip-and-replace.
When users need Zoom Meetings, Zoom Whiteboard, or Zoom Phone SMS inside Teams, that is the embedded path — optionally alongside native Teams PSTN for a different population.
When the organisation wants one vendor for meetings, chat, and phone, pick a primary and stop adding a second PBX “just in case.”
Why is there no universal winner?
Because the constraint is almost never “which brand has more features on a slide.” It is which client people will actually use, which numbers you already own, who will run day-two operations, and which Zoom or Microsoft capabilities you cannot give up. What is the best way to use Zoom Phone with Microsoft Teams? walks that sequence.
Frequently asked questions
Is Zoom Phone the same as Microsoft Teams Phone?
No. They are overlapping cloud PBXs in different ecosystems. Zoom Phone is Zoom's telephony platform. Microsoft Teams Phone is Microsoft's telephony platform inside Teams.
If users live in the Teams client, must Microsoft be the PSTN carrier?
No. Microsoft documents Operator Connect and Direct Routing so a third-party operator can supply PSTN while users stay in the native Teams dialer. Zoom documents both of those paths.
Which one should we choose?
There is no universal winner. If the requirement is the native Teams calling client with Zoom as PSTN, you are combining them, not replacing one with the other. If the requirement is Zoom Phone features inside Teams, that is the embedded path, not Teams Phone.
Can we keep Zoom Phone and still use Teams for chat and meetings?
Yes. That is a straightforward coexistence model. Decide which client owns calling, then pick Operator Connect, Direct Routing, or embedded Zoom.
Does picking Teams Phone mean we cannot use Zoom Meetings?
No. Many organizations run both meeting platforms. That is a workflow decision, not a PSTN decision. See the hub for how Meetings tabs differ from native Teams calling.
Where do Operator Connect and Direct Routing fit?
They are how you combine Zoom telephony with native Teams Phone. They are not a third PBX.
Related articles
- Zoom + Microsoft Teams: Complete Integration Guide — the four-architecture hub so Operator Connect, Direct Routing, the plug-in, and Workplace for Teams are not mixed on a quote.
- Can Zoom Phone work with Microsoft Teams? — yes, and which of the three models you are actually buying.
- Zoom Operator Connect vs Direct Routing — simplified operator PSTN versus certified/DRaaS SBC flexibility.
- How to set up Zoom Operator Connect — Zoom KB0087617 sequence: tenant, emergency addresses, numbers, Teams assignment, pilot.
- What is the best way to use Zoom Phone with Microsoft Teams? — start with UX, then features, countries, operating model, and a pilot.
- Zoom Phone and Microsoft Teams together: what actually integrates? — the existing live operational spoke for Direct Routing versus in-app Zoom Phone.
References
First-party Zoom and Microsoft pages, verified 28 August 2026. Neither vendor page names a universal winner.
- Microsoft Learn — PSTN connectivity options (ms.date 2026-07-31)— Teams Phone can use Calling Plan, Operator Connect, Teams Phone Mobile, or Direct Routing. Choosing the Teams client does not choose Microsoft as the PSTN carrier.
- Microsoft Learn — What is Teams Phone?— Teams Phone as Microsoft’s cloud PBX / calling system in the Teams ecosystem. PSTN still requires a connectivity option and Teams Phone licensing.
- Zoom — Zoom Workplace for Microsoft Teams— Zoom Phone can sit behind native Teams calling (Operator Connect or Direct Routing) or as embedded Zoom UI.
- Zoom — Setting up Zoom for Microsoft Operator Connect (KB0087617)— Teams Phone licensing required on the Operator Connect path.
- Zoom — Managing Zoom Phone for Microsoft Teams (KB0057686)— Direct Routing path licensing and native Teams dialer.
Managed Zoom Phone and Microsoft Teams voice, SDVOSB. We do not run a brand bake-off when the actual design is Zoom PSTN behind the Teams dialer, and we do not replace a working Zoom Phone estate just because users live in Teams chat. Support: (888) 989-4872 · support@adampulse.us