Direct Routing allows Microsoft Teams to make and receive external calls within the platform. It optimizes Microsoft licensing to help enterprises make massive cost savings by empowering calling for individual users rather than the entire organization. Voice calling is also available through Teams for analog devices, lobby phones, and other locations where end users might not have access to the app. Direct Routing uses Session Border Controllers (SBCs) and SIP Trunk platforms to link the Public Switched Telephone Network (PSTN) to Teams. By selecting a provider like Sinch, with 99.999% uptime, you can rest assured of high reliability and availability — especially essential for businesses operating 24×7. Best suited for businesses with complex needs, you can integrate calling between Teams users and other business-critical functions like remote teams and call centers. Plus, take advantage of additional SIP Trunk features like SIP-enabled phones, number porting, and international calling. With secure, seamless E911 calling directly through Microsoft Teams, you can be confident our 911 nomadic location management and precision routing will provide a seamless connection to emergency services, no matter if your workforce is onsite or remote. Get maximum reach and communicate securely and reliably with anyone over the largest nationwide network, with 94% population coverage — owned and operated by Sinch!