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Direct Routing

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May 2, 2024 3 minute read

Direct Routing for Microsoft Teams is a telephony solution that allows you to connect your existing phone system or carrier to Microsoft Teams. This allows you to use Teams for all of your communication needs, including voice, video, and chat. Direct Routing can be a cost-effective way to upgrade your phone system and take advantage of the features of Microsoft Teams.

Benefits of Direct Routing

There are several benefits to using Direct Routing for Microsoft Teams, including:

  • Cost savings: Direct Routing can save you money on your phone bills, especially if you have a large number of users.
  • Flexibility: Direct Routing gives you the flexibility to choose your own phone carrier and plan.
  • Scalability: Direct Routing can be scaled to meet the needs of your business, whether you have a small or large number of users.
  • Reliability: Direct Routing is a reliable solution that is backed by Microsoft.

How Direct Routing Works

Direct Routing works by connecting your phone system or carrier to Microsoft Teams. This connection is made through a Session Border Controller (SBC). The SBC is responsible for translating the signals between your phone system and Microsoft Teams. Once the connection is established, you can use Teams for all of your communication needs.

Who Should Use Direct Routing?

Direct Routing is ideal for businesses that want to upgrade their phone system and take advantage of the features of Microsoft Teams. It is also a good option for businesses that have a large number of users and want to save money on their phone bills.

How to Use Direct Routing

Path to Direct Routing

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We've curated six courses to help you on your path to Direct Routing. Use these to develop your skills, build background knowledge, and put what you learn to practice.
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Reading list

We've selected 25 books that we think will supplement your learning. Use these to develop background knowledge, enrich your coursework, and gain a deeper understanding of the topics covered in Direct Routing.
Provides a complete overview of troubleshooting Microsoft Teams, including the Phone System, PSTN connectivity, and call routing. It directly addresses troubleshooting Direct Routing issues and provides practical tools and techniques for diagnosing and resolving problems in a Teams voice environment. It must-read for anyone responsible for the operational health of Teams Direct Routing.
Provides a comprehensive guide to Direct Routing for Microsoft Teams, covering everything from planning and implementation to troubleshooting and support. It is written by an experienced Microsoft Teams expert and valuable resource for anyone looking to deploy Direct Routing in their organization.
Best practices guide for planning and deploying Direct Routing for Microsoft Teams. It provides guidance from Microsoft on how to design, implement, and manage Direct Routing in your organization. It valuable resource for anyone looking to deploy Direct Routing in their organization.
This technical overview provides a detailed explanation of Direct Routing, including its architecture, protocols, and security considerations.
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Widely recognized resource for understanding the Session Initiation Protocol (SIP), the foundational protocol for VoIP and a core component of Direct Routing. It covers SIP comprehensively, from basic concepts to advanced topics and related protocols. It is essential reading for anyone needing a deep technical understanding of how voice sessions are established and managed in a Direct Routing environment.
Another comprehensive book on the SIP protocol, this resource delves into how SIP is used for delivering various multimedia services, including VoIP. It provides in-depth knowledge of SIP's architecture, messaging, and related standards, which is foundational for anyone working with Direct Routing at a technical level.
Provides a comprehensive guide to administering Microsoft Teams, including its architecture, phone system, and voice features like Direct Routing and Calling Plans. It covers deployment, management, and troubleshooting aspects. It's a valuable resource for administrators needing to configure and manage Teams for voice.
This e-book focuses specifically on Microsoft Teams Phone, covering provisioning, management, and best practices. It is highly relevant to Direct Routing as it details how to enable and manage users for voice within Teams. It provides practical guidance for IT professionals working with Teams Phone.
While focused on Cisco CUBE, this book provides a comprehensive guide to Session Border Controller (SBC) theory, design, deployment, and troubleshooting, which are fundamental to Direct Routing implementations regardless of the vendor. It offers insights valuable to technical professionals working with any SBC solution. This is an excellent resource for deepening understanding of the critical SBC component.
Focuses specifically on SIP Trunking, a key technology enabling Direct Routing by connecting an IP PBX to a service provider over an IP network. It covers planning, evaluating, and implementing SIP trunking solutions. Understanding SIP trunking is crucial for grasping the connectivity aspect of Direct Routing.
Provides expert-led advice on leveraging Microsoft Teams features, including voice capabilities and integration. It covers Teams architecture and deployment concepts, which are crucial for understanding where Direct Routing fits within the broader Teams ecosystem. It is valuable for administrators looking to implement and manage Teams voice solutions effectively.
Guide for IT professionals who are responsible for planning, deploying, and managing Direct Routing for Microsoft Teams. It provides step-by-step instructions and real-world examples. It valuable resource for anyone looking to deploy Direct Routing in their organization.
This lab guide provides hands-on exercises for configuring Session Border Controllers (SBCs), covering essential aspects like routing, transcoding, and message manipulation. While potentially vendor-specific (AudioCodes is mentioned in a search result), it offers practical experience crucial for understanding SBC configuration in a Direct Routing scenario.
Offers a non-technical introduction to Microsoft Teams Calling and Direct Routing, explaining the core concepts and benefits. It's particularly useful for those new to the topic or in non-technical roles who need a broad understanding of how Direct Routing fits into a business's communication strategy. While not a deep technical manual, it provides a solid foundation and context for further learning.
Covers the general architecture of VoIP and its application in various communication networks. It provides a broad technical overview of VoIP technology, which forms the basis for Direct Routing. It's suitable for gaining a deeper technical understanding of how VoIP works.
Focuses on the security vulnerabilities and countermeasures related to Unified Communications and VoIP systems. Understanding these security aspects is crucial when implementing Direct Routing, as it involves connecting internal networks to external telephony services. It provides valuable insights for securing a Teams voice deployment.
Covers securing Cisco Unified Communications systems, including deploying Session Border Controllers for security. While Cisco-focused, the security principles and SBC concepts discussed are broadly applicable to securing any UC environment, including those using Teams Direct Routing. It's a valuable reference for understanding security best practices.
Provides a step-by-step guide to using and administering Microsoft Teams. While it may not focus exclusively on Direct Routing, it covers core Teams functionalities and administration, which is prerequisite knowledge for configuring and managing Teams Voice features, including Direct Routing. It's a good starting point for those new to Teams administration.
Explores the evolution of voice communication from traditional telephony to VoIP and Unified Communications. It provides a broader understanding of the technologies and concepts underlying modern voice networks, including those relevant to Direct Routing. It's suitable for gaining a more comprehensive view of the telecommunications landscape.
Focuses on implementing enterprise voice features using Skype for Business Server, the predecessor to Microsoft Teams in the enterprise voice space. It provides valuable context on Microsoft's evolution in unified communications and the concepts that carried over to Teams Direct Routing. It can be useful for understanding the history and underlying principles.
Offers a high-level overview of Unified Communications (UC), explaining how different communication technologies are integrated. While not specific to Direct Routing, it provides essential background knowledge on the broader UC landscape into which Direct Routing fits. It's suitable for beginners and those who need to understand the business drivers and benefits of a unified communication system.
Although focused on Microsoft Lync Server (a predecessor to Teams), this book provides insights into the development and integration of Unified Communications solutions within a Microsoft ecosystem. It can offer valuable historical context and foundational knowledge regarding Microsoft's approach to enterprise voice and UC, which is relevant to understanding the evolution towards Teams and Direct Routing.
This introductory book explains the basics of Voice over IP (VoIP) technology in an easy-to-understand manner. While not specific to Direct Routing or Teams, it provides necessary background knowledge on how voice is transmitted over IP networks. It's a good starting point for those completely new to the concepts.
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