How to enable Zoom and Webex meetings on MTR

Maxime Hiez
MTR , Tutorial
04 Apr, 2025

Introduction

In the modern business world, effective collaboration is essential. Organizations use various video conferencing platforms to stay connected, and it’s crucial to be able to join meetings across different platforms without complications. This is where the Direct Guest Join feature for Microsoft Teams Rooms (MTRs) comes in. This innovation allows users to join Zoom and Webex meetings directly from their MTRs, simplifying meeting management and improving the flexibility of collaborative work environments.

Benefits of the Direct Guest Join feature

Increased flexibility : Allows users to easily join meetings on different platforms without leaving the MTR interface.
Simplified processes : Eliminates the need for complex setups and multiple steps to join third-party meetings.
Improved collaboration : Facilitates collaboration between teams using different video conferencing platforms.

Prerequisites

Licenses required

Teams Rooms Pro (or Teams Rooms Basic).

A Teams room

An MTR deployed.

Administrator role

An account with the Global Administrator role to access Microsoft Teams Rooms Pro Management.
An account with the Global Administrator or Security Administrator role to access the Microsoft Defender portal.
An account with the Global Administrator or Exchange Administrator role to access Microsoft Exchange Online.

Step 2 : Edit the Safe Links policy

If your organization uses the Microsoft Defender for Office 365 Safe Links feature, it is important that Zoom and Webex URLs are not rewritten so that the room can read the invitation content.

In the left menu, click Policies & Rules, then Threat Policies and Safe Links.

Edit the rule and add the following URLs :

*.zoom.us/*
*.zoom.com/*
*.zoomgov.com/*
*.webex.com/*

Connect-ExchangeOnline

Step 4 : Edit Exchange attributes

For an MTR to join a Teams meeting, they must use hidden properties in the Outlook invitation. However, to be able to join a Zoom or Webex meeting, they must be able to read the body of the invitation message. Therefore, you must preserve this body to ensure a Join button is generated. Also, these meetings are created outside of your organization, and it’s important that the room calendar accepts the invitation.

Edit the two Exchange attributes DeleteComments and ProcessExternalMeetingMessages using the following PowerShell command :

Set-CalendarProcessing -Identity "Salle.Montreal@hiez.ca" -DeleteComments $False -ProcessExternalMeetingMessages $True

It may take several minutes for the configuration to take effect. Your account should then look like this :

Sign in to the Microsoft Teams Rooms Pro Management portal by opening your web browser to https://portal.rooms.microsoft.com.

Step 6 : Enable Zoom and Webex providers

In the left menu, click Rooms, then click the room you want to edit.

Click Settings, then Meetings and enable the Zoom and Webex providers.

Result

After a few minutes of waiting, the MTR should be able to process the invitation and display a Join button with a Zoom (or Webex) logo on the tablet.

What about an Android MTR room ?

You can follow steps 1, 2, 3, and 4, but activating Zoom and Webex is done directly from the tablet.

Conclusion

The Direct Guest Join feature for Microsoft Teams Rooms improves the flexibility and efficiency of collaborative work environments. By allowing users to join Zoom and Webex meetings directly from their MTR devices, this feature simplifies meeting management and strengthens team collaboration.

You now know how to enable Zoom and Webex meetings on MTR.