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Microsoft Teams Direct Routing Configuration

Microsoft Teams Direct Routing Configuration

02 APR 2020

Microsoft Teams Direct Routing Configuration for a Microsoft Partner-blog

The Client

A mid-sized IT consulting and Microsoft Cloud Service Provider company in Las Vegas, USA engages Star Knowledge to connect their on-premises telephony infrastructure to Microsoft Teams.

The Need

The client needed a unified communication system for improved business collaboration. They wanted to enable Microsoft Teams to use their own on-premises voice infrastructure for calling outside / Public Switched Telephone Network (PSTN).

As Microsoft Phone System Direct Routing allows us to connect a supported, customer-provided Session Border Controller (SBC) with Microsoft Phone System, companies can configure their SIP Trunk or PSTN connectivity with Microsoft Teams. With Direct Routing, you can stay with your existing telephony provider while using the calling capabilities of Microsoft Teams.

The Challenge

The direct routing capability is accessed provided the client has Microsoft Teams and Phone System as part of Office 365. The users of Direct Routing must have different licenses assigned in Office 365 and the client required an additional SBC License and External certificate for the direct routing to be performed.

The Solution

With certified SBCs to work on Phone System Direct Routing, Star Knowledge provides secure PSTN services for Office 365 Phone System.

Here’s how team Star Knowledge set up the Microsoft Teams Direct Routing for the client:
  • A wild card certificate was used
  • Integrated Audio codes SBC with Microsoft Phone system using Teams direct routing

Benefits obtained

  • Improved online meetings
  • Decreased number of communication tools
  • Enterprise-grade security


  • Microsoft Office 365

Looking for a Teams Direct Routing Partner? As a Microsoft Solution Provider for 10 years in the industry, the experienced consultants at Star Knowledge provide tailored Microsoft Teams consulting, direct routing support, the transition from SFB to Teams, and Office 365 consulting services.

Get in touch with our consultants to today to discuss your business challenge.

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