Master Microsoft Teams Voice – Phone System – Direct Routing

Master Microsoft Teams Voice - Phone System - Direct Routing


  • Do you wish to migrate PBX users from on-premises to the cloud?
  • Do you want to keep or need to keep your current on-premises legacy PBX as a hybrid system to use loud UC as well?
  • Does your current legacy PBX offer unique features that are critical to your business?
  • Do some or all of your users need features that the Phone System does not currently provide?

Microsoft’s Phone System technology allows Microsoft Teams to use PBX and call control features in the Microsoft 365 cloud.

The phone system is compatible with MS Teams clients and approved gadgets. You can use Phone System to replace your current PBX system with a set of services that are directly provided by Microsoft 365.

Internal calls within your company are handled only within the Phone System and never across the Public Switched Telephone Network (PSTN), eliminating the need for long-distance charges.

The phone system offers add-on options for connecting to the PSTN in order to place external calls.

You can link a supported, customer-provided Session Border Controller (SBC) to a phone system using Direct Routing.

Using this feature, you can set up on-premises Public Switched Telephone Network (PSTN) connectivity with the Microsoft Teams client.

In this course, students will learn to configure the Microsoft Phone system by following hands-on labs as demonstrated in the course. The course teaches all the advanced features offered by Microsoft Teams Enterprise Voice.

All lab exercises use the Microsoft Azure Cloud platform. Students will be able to configure the phone system direct routing step by step by installing MS Teams-certified SBC and trunking with Asterisk PBX for the demonstration.

Who this course is for:

  • Any person or organisation interested in using Microsoft Teams Direct Routing.
  • Businesses that like providing support for Microsoft Teams’ Direct Routing.


  • Basic knowledge of Microsoft Office 365 applications including Microsoft Teams.
  • Having some familiarity with the Azure cloud or another platform that allows for installation.
  • Basic SIP PBX handling and troubleshooting expertise.

Last Updated 9/2023

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Master Microsoft Teams Voice – Phone System – Direct (1.5 GB) | Mirror

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