Call2Teams Operator Connect | Teams Voice for Carriers

320 million Teams users. Most of them still can't make a phone call.

Microsoft Teams has over 320 million daily active users and has become the default collaboration platform for enterprises worldwide. But Teams doesn't include PSTN calling by default — and only a small percentage of UCaaS seats are currently using voice services. That gap is the opportunity.

Operator Connect is Microsoft's newest and fastest-growing PSTN enablement path — integrated directly into the Teams Admin Center, available in 60+ markets, and projected to reach 17 million+ endpoints by 2026. Service providers who are certified and in market today are positioned to capture that growth. Those who are not are already behind.

Connect. Launch. Scale.

Three stages. One clear path to market. We handle the complexity at each stage so you can focus on what matters — selling.

Connect

We do the leg work to get you up to speed quickly and guide you through a frictionless onboarding process.

Launch

Backed by proactive and experienced teams, we accelerate your G2M, whilst future proofing your service.

Scale

You’re in safe hands, with our simple platform and solid infrastructure, the service will scale as you grow.

The platform behind the service

Build your digital journey — white-label portals and APIs

Use our intuitive white-label portals to manage your service, your brand, and your customers — or build your own stack using our extensive API library. The APIs offer effortless integration with your existing BSS/OSS and flexible automation for provisioning, number management, and billing. You choose how much of the platform you expose and how much you build on top of it.

Carrier-grade infrastructure — certified, high-availability, Microsoft-approved

Call2Teams Operator Connect runs on fully certified, industry-leading, high-availability architecture approved by Microsoft Teams. Geo-redundant infrastructure means no single point of failure in the call path. The platform is built to the same reliability standards your customers expect from their carrier — because it is running carrier-grade infrastructure underneath.

Powerful analytics — call insights across your entire estate

Get instant, in-depth call insights with multiple dashboard views for full visibility across your customer base. From call behaviour patterns to individual troubleshooting, answers are fast and accessible in one place. Give your operations team the data they need to manage quality, resolve issues before customers raise them, and demonstrate service performance to commercial stakeholders.

Good for you. Good for your customers. Good for their users.

Call2Teams Operator Connect creates value at every level of the service chain — from the SP building a recurring Teams voice practice, to the business simplifying its number estate, to the individual who just wants to make a call from Teams without a second thought.

Service providers

Fast go-to-market with no risk to existing business operations. Full visibility and clarity around the path to cloud. A structured commercial model with recurring revenue from day one, and a platform that grows with your customer base.

End customers

Effortless number management regardless of geography. Improved operational resilience through a single, integrated service — activate once and manage your entire number estate from one place. Dramatically simpler than managing multiple carrier relationships and porting processes.

End users

Full voice capability without changing how they work. Calls happen natively inside Microsoft Teams — the interface they already use every day for meetings, chat, and collaboration. No new app. No new dial pad. No training required.

Frequently asked questions

Operator Connect is Microsoft's programme for certified carriers and service providers to offer PSTN calling directly within Microsoft Teams. It is integrated into the Teams Admin Center — meaning customers can find, select, and activate a voice service provider without leaving Teams. Operator Connect is available in 60+ markets and is projected to reach over 17 million endpoints by 2026. It is distinct from Direct Routing (where the SP manages a Session Border Controller) and Calling Plans (Microsoft's own carrier service, limited to 33 markets).

Operator Connect is Microsoft's newer, more tightly integrated programme. The service provider connects directly with Teams and Azure, integrates with the Operator Connect APIs, and appears in the Teams Admin Center marketplace for customers to discover and activate. It requires Microsoft certification and direct peering through MAPS. Direct Routing uses a Session Border Controller to route calls between a SP network and Teams — it is more flexible in terms of infrastructure, does not require Microsoft certification, and is available in more markets. Call2Teams offers both pathways: Operator Connect and Direct Routing.

To participate in the Operator Connect programme, a service provider must hold direct peering through Microsoft MAPS for voice, be a regulated or licensed operator in the markets they want to serve, pass Microsoft certification (requiring designated individuals to complete several certifications), and integrate with the Operator Connect APIs. Ongoing requirements include keeping API integrations current as Microsoft releases updates, and maintaining the analytics and provisioning portals. Call2Teams Operator Connect handles all of this — the certification process, the API integration, and the ongoing maintenance — on behalf of the SP.

The structured onboarding process takes 6 to 8 weeks from contract to in-market. This covers certification support, technical integration with the Operator Connect APIs and your BSS/OSS, portal setup, and GTM readiness. This compares to 9 to 18 months for service providers who have attempted to build the integration themselves — and those estimates typically undercount the ongoing engineering resource required to maintain API integrations as Microsoft's programme evolves.

Yes. Microsoft regularly updates the Operator Connect APIs as the programme evolves. One of the most significant operational challenges for SPs who have built their own integration is the ongoing resource required to stay current with those changes. Call2Teams Operator Connect handles all API maintenance centrally — when Microsoft releases a change, our engineering team updates the platform. SPs on the Call2Teams platform do not need to dedicate internal resource to tracking or implementing Microsoft programme changes.

Operator Connect

See how it works

320 million Teams users. Most of them still can't make a phone call.

320M+

17M+

60+

9 to 18 months of development. Or 6 to 8 weeks with us.

Self-build; 9–18 months

Operator Connect; 6–8 weeks