Communication/TEAMS DIRECT ROUTING

Seamless Calling
Directly from Microsoft Teams

As businesses move toward unified communications, Microsoft Teams has become the platform of choice for collaboration. Direct Routing enhances Teams by enabling external calling — allowing users to make and receive phone calls directly through the Teams interface.
With Sona’s Direct Routing for Microsoft Teams, organizations gain complete voice functionality without the need for costly hardware or additional phone systems. Connect easily with customers, partners, and teams across the globe — all within a single, familiar environment.

What is
Direct Routing?

Direct Routing allows companies to connect Microsoft Teams to the Public Switched Telephone Network (PSTN)through a certified Session Border Controller (SBC). This setup enables Teams users to place and receive external calls, manage numbers, and integrate with existing phone systems — delivering full PBX-level functionality within Microsoft Teams. Sona’s SBC solutions support both individual enterprise tenants and multi-tenant provider models, available as cloud-native, virtualized, or on-premises deployments. Whether your infrastructure runs on Azure, AWS, VMware, or another platform, our flexible integration ensures seamless performance and reliability.

Key
Benefits

PSTN Connectivity for Global Teams

Enable full external calling capabilities directly within Microsoft Teams. Eliminate the need for local phone lines by utilising Sona’s global SIP infrastructure to reach customers in over 50+ countries.

Carrier-Grade SBC Reliability

Our solution utilises certified Session Border Controllers (SBCs) to manage secure, high-quality voice traffic. This ensures your communications are protected by enterprise-grade encryption and industry-leading security protocols.

Significant Telecom Cost Savings

Dramatically reduce your monthly overhead by replacing traditional PBX hardware and expensive local call packages with a unified, cloud-native voice solution billed at a fraction of standard rates.

Centralised Voice Management

Simplify your IT operations by consolidating all communication logs, user data, and international numbers into a single, visible dashboard within the Microsoft Teams environment.

Elastic Scalability & Rapid Deployment

Whether you are adding ten users or ten thousand, our cloud-based infrastructure scales instantly across global regions without requiring on-site technical installations.

HD-Quality Voice & Low Latency

Experience crystal-clear, high-definition audio for every call. Our optimised network paths minimise jitter and latency, ensuring professional-grade communication for your critical business meetings.

Empowering Productivity
Through Integration

Direct Routing empowers companies to future-proof their communications, strengthen team collaboration, and improve customer experiences — all while saving time and operational costs. With Sona’s quick setup, you can enable enterprise-grade voice calling within minutes, allowing your teams to stay focused on what matters most: your customers.

Built for the
Modern Enterprise

Global Customer Support Centres

Best for organisations that need a unified, high-quality voice platform to manage international support tickets directly through Teams.

Professional Services (Legal & Accounting)

Ideal for firms requiring secure, HD-quality calls for confidential client consultations with detailed call logging for billing accuracy.

Multinational Corporations

Necessary for companies with "Borderless Workplaces" that need to connect dispersed teams in different countries under a single, cost-effective phone system.

Education & Public Sector

Optimised for institutions that need to move away from expensive on-premise PBX systems toward a more flexible, remote-friendly cloud infrastructure.

Hybrid Enterprises

Critical for businesses where employees split time between the office and home, as it allows them to take "office calls" on any device with the Teams app installed.

Want to know
more?
Get in touch today.

FAQ

What is the main difference between Microsoft Calling Plans and Sona Direct Routing?

While Microsoft Calling Plans are a "one-size-fits-all" retail option, Sona Direct Routing offers greater flexibility, lower international call rates, and superior technical support. It allows you to choose your own carrier (Sona) while keeping the same Teams interface.

Can we keep our existing business phone numbers?

Yes. We provide full number portability services. We can port your existing international and local numbers into our network, ensuring your clients can reach you on the same familiar digits without any service interruption.

Do we need to purchase additional hardware for this to work?

No. Our Direct Routing service is entirely cloud-native. We host and manage the Session Border Controllers (SBCs) on our side, meaning you don't have to worry about buying, maintaining, or upgrading expensive physical equipment.

Is a specific Microsoft 365 license required for Direct Routing?

Yes, users generally require a Microsoft 365 or Office 365 license that includes the "Phone System" add-on (standard in E5 licenses, available as an add-on for E1 and E3). We can help you audit your current licensing to ensure you are ready for the switch.

What happens if our internet connection goes down?

We offer "Resilient Failover" options. In the event of an internet outage, calls can be automatically rerouted to mobile devices or alternative office locations, ensuring your business remains reachable at all times.

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