Enable PSTN Calling in the Way that Suits you Best

Whether through Operator Connect, Direct Routing, or a fully tailored solution...our services support both local and international regions, and you’ll have access to an intuitive portal to easily manage your setup.

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Why Choose Linc for Microsoft Teams Voice?

With decades of experience, industry-leading infrastructure and deep Microsoft expertise, Linc delivers a highly resilient, secure and fully integrated voice solution for Microsoft Teams.

Cloud-First Communications

Built on a long-standing heritage of cloud communications, Linc is the UK’s No.1 SIP provider, trusted by 1 in 3 UK businesses for reliable voice services.

Microsoft Teams Expertise

Linc’s voice services integrate seamlessly with Microsoft Teams, providing full PSTN breakout and high availability through triplicate entry points into Microsoft Azure.

18+ Years of Microsoft Voice Experience

With more than 18 years supporting Microsoft voice solutions, Linc holds advanced specialisation in Calling for Microsoft Teams — proof of deep technical expertise and proven customer success.

Business-Only Provider

Linc is known for being easy to work with, supported by 24x7x365 UK-based teams and industry-leading SLAs covering everything from provisioning to ongoing management.

Complete Network Ownership

Linc owns and operates its entire network infrastructure, giving full flexibility to design and deliver bespoke solutions tailored to specific business needs.

Secure & Highly Accredited

Linc holds multiple independently audited certifications, demonstrating a strong commitment to security, reliability and the highest quality standards across all products and infrastructure.

Ready to upgrade to Teams Voice?

Switch to Linc Telecom and start saving today. Our dedicated team provides outstanding service, tailored support, and competitive pricing. Making the switch is simple...and we’ll handle everything for you.

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Your Questions, Answered

Operator Connect enables seamless, carrier-grade calling within Microsoft Teams. As part of Microsoft’s exclusive operator partner program, it provides superior interconnection via Microsoft Azure Peering Services (MAPS), along with a joint engineering and support model for smooth deployment and management.

Linc’s cloud-first solutions transform Microsoft Teams into a complete, enterprise-grade telephony platform. Built on our extensive experience delivering cloud communications, these enhanced features help organisations maximise the value of their Microsoft Teams environment.

Yes. By using Microsoft-certified Session Border Controllers (SBCs), Teams can operate as a complete PBX—without on-premise hardware or Microsoft calling plans. This cloud-based approach delivers enhanced flexibility, better value, greater functionality, and smooth migration.

Linc offers Operator Connect, Direct Routing, and fully managed services—ensuring a solution tailored to your business needs. Our Professional Services team supports your journey from start to finish, including solution design, deployment, migration, and user training.

Operator Connect Advanced Options

Discover why Linc is the trusted provider for Microsoft Teams voice solutions, delivering reliability, expertise, and advanced features.

Microsoft Teams Expertise

With over 15 years’ experience enabling Microsoft voice solutions, Linc understands business requirements and helps you maximise your Teams environment.

Continuity of Service

Maintain your Linc contracts and phone numbers while providing users with a modern calling experience in Microsoft Teams—no number porting required.

Independently-Owned Carbon Neutral Network

Linc owns and operates its own carbon-neutral network, supporting over six million UK business users with efficient, automated services and strong governance.

Augmented Service

Native fraud management protects against toll fraud, while SIP Trunk Call Manager delivers carrier-grade cloud resilience and enhanced Teams Calling capabilities.

Cloud Communications Heritage

20 years of delivering cloud-first communication services, making Linc the UK’s No.1 SIP provider and an accredited supplier across multiple public sector frameworks.

Deep Microsoft Integration

Linc integrates with Microsoft networking, provisioning, management, reporting APIs, and the Teams portal, providing a simple and reliable calling experience.

Gold Microsoft Partner

Certified in Messaging, Communications, Collaboration and Content, Cloud Productivity, and Windows & Devices, Linc brings unmatched expertise to your Teams deployment.