Operator Connect vs Direct Routing, Compared

Operator Connect vs Direct Routing comes down to one trade: Operator Connect gives you a Microsoft-managed carrier experience with zero infrastructure but only program-enrolled operators; Direct Routing gives you any carrier on earth, local survivability, and analog-device support — through a certified SBC you own, rent, or consume as a service. Everything else in the comparison is detail on that trade.

SIPNEX is an FCC-licensed carrier that serves Teams through Direct Routing trunks — read the bias accordingly; every row below traces to Microsoft’s own documentation.

The comparison table

Decision factor	Operator Connect	Direct Routing
Carrier choice	Enrolled program operators only, in their covered countries	Any PSTN carrier — Microsoft certifies the SBC, never the carrier
Infrastructure	None — operator-managed, Azure-peered	Certified SBC: yours, your integrator’s, or DRaaS
Keep an existing carrier contract	Only if that operator is in the program	Yes, whoever they are
Per-minute economics	Operator program pricing	Carrier rates you negotiate
Local survivability (cloud outage)	Not available	Supported via Survivable Branch Appliance
Analog devices / legacy PBX interop	Not the designed path	Supported via ATAs behind the SBC
Number management	Native in Teams admin center	Configured via SBC + voice routing policies
Support model	Operator + Microsoft, shared SLAs	Carrier + SBC vendor + Microsoft
Admin effort	Enable operator, assign numbers	Voice routing, dial plans, SBC configuration

How to actually decide

Take Operator Connect when the phone system is a utility: standard office calling, no telecom staff, no analog estate, and an enrolled operator whose coverage and pricing are acceptable. The admin-center-native experience is genuinely the smoothest path Microsoft offers short of buying its own Calling Plans.

Take Direct Routing when any of these are true:

• You have a carrier opinion. Existing contracts, negotiated rates, or requirements about who signs your calls and at what attestation level — Direct Routing is the only door that honors it.
• Volume. Per-minute carrier economics at scale beat per-user program pricing; that’s the arithmetic that built the BYOC model.
• Sites that can’t go quiet. Only Direct Routing offers a Survivable Branch Appliance keeping local PSTN calling alive through a cloud outage.
• Analog reality. Elevator phones, door boxes, overhead paging, fax — ATAs behind the SBC integrate them; Operator Connect doesn’t try.
• A dialer or call-center wing. Campaign traffic doesn’t belong on Teams seats at all — it belongs on dialer-grade trunks, and a Direct Routing carrier that also does that gives you one carrier for both.

The SBC objection is weaker than it looks. Microsoft explicitly sanctions the SBC being “procured, installed, and managed by you, your integrator, or a Direct-Routing-as-a-Service provider” — you can have Direct Routing’s freedoms without racking border hardware. What you need from the carrier side is trunks that speak plainly to whatever SBC you land on: SIPNEX’s Direct Routing trunks are exactly that, with A-level attestation and carrier rates.

And the doors aren’t exclusive: Microsoft supports mixing options per user in one tenant — Operator Connect for low-touch staff, Direct Routing where the requirements live.

Frequently asked questions

Which is better, Operator Connect or Direct Routing?

Neither universally. Operator Connect is better when you want zero infrastructure and an enrolled operator fits your needs. Direct Routing is better when carrier choice, rates at volume, survivability, or analog devices matter — the requirements-heavy cases. Mixed tenants using both are fully supported.

Is Direct Routing being replaced by Operator Connect?

No. Microsoft documents all four PSTN options — Calling Plans, Operator Connect, Teams Phone Mobile, Direct Routing — as current, and Direct Routing remains the only path for any-carrier freedom, SBA survivability, and analog integration. Operator Connect absorbed the easy cases, not the platform.

Do both options need a Teams Phone license?

Yes — every user making PSTN calls in Teams needs Teams Phone (the Standard add-on, or included with Microsoft 365 E5) regardless of the connectivity option. What differs is where calling charges come from: the enrolled operator under Operator Connect, or your chosen carrier under Direct Routing.

Can I move from Operator Connect to Direct Routing later?

Yes. Numbers port from the operator to your Direct Routing carrier through the standard process, and the tenant-side change is voice-routing configuration. Organizations commonly start on Operator Connect for speed and move requirement-heavy sites to Direct Routing as needs surface.

---

SIPNEX is an FCC-licensed carrier for the Direct Routing path: trunks for your Teams tenant through any certified SBC — unlimited channels, A-level STIR/SHAKEN, carrier rates. Talk to an operator or see rates.