Microsoft Teams To Webex

Posted : admin On 1/29/2022
  • Verify that users have activated accounts in Control Hub, and they should be successfully registered to Unified Communications Manager or Webex Calling for making calls.

  • Make sure your users have the Webex app.

  • Make sure you have Administrator rights for Microsoft Teams.

  • Make sure users' phone numbers are updated in the Azure Active Directory.


Go to Microsoft Teams Admin Center .


From the menu on the left, click Teams Apps > Manage Apps .


In the search box, search for Webex Call , and in the search results, click on the app name.


Toggle on the app status to Allowed .


From the menu on the left, go to Teams apps > Permission policies .


Select the policy for your organization, and make sure Third Party apps is set to Allow all apps .


From the menu on the left, select Teams apps > Setup policies .


Select the policy for your organization.


Click Add > Add Apps , then search for Webex Call and click Add . Click Add at the bottom of the screen to confirm.


Click Save .

It can take up to 24 hours for changes in Microsoft Teams to take effect.

Sign in to Webex Teams for group chat, video calling, and sharing documents with your team. It's all backed by Cisco security and reliability. Though Cisco Webex also offers a free version, in comparison, Microsoft Teams offers far more generous features in the free version. Cisco Webex’s cheapest plan starts with $13.50 per user per month and calling service add-ons would be priced extra. When you must decide between Teams vs Webex with cost as a factor, Microsoft Teams wins hands down.

Microsoft Teams To Webex

Microsoft Teams Rooms devices support a one-touch experience for joining third-party online meetings, also referred to as Direct guest join. When enabled, you can use a Teams Rooms device to join meetings hosted on Cisco WebEx and Zoom just as easily as you can join meetings hosted in Microsoft Teams.

Before you can join third-party meetings from a Teams Rooms device, you need to do the following:

  1. Configure the Teams Rooms device's Exchange Online room mailbox to process invites for third-party meetings.
  2. Make sure your organization doesn't have any policies that would prevent you from connecting to third-party meeting services.
  3. Configure your Teams Rooms devices to allow third-party meetings.

The following sections show you how to do each of these steps.

Step 1: Allow calendar invite processing for third-party meetings


The first thing you need to do to enable a one-touch join experience from a Team Rooms device is set the calendar processing rules for the device's Exchange Online room mailbox. The room mailbox needs to allow external meetings and keep the message body and subject so it can see the URL needed to join the third-party meeting. To set these room mailbox options using the Set-CalendarProcessing cmdlet, do the following:

  1. Connect to Exchange Online PowerShell. For more information, see Connect to Exchange Online PowerShell with Basic authentication or Connect to Exchange Online PowerShell using multi-factor authentication, depending on your authentication method.

  2. Get the User Principal Name (UPN) of the room mailbox if you don't know it by running the following command:

  3. Find the name of the room mailbox associated with your Teams Rooms device and make note of its UPN.

  4. After you find the room mailbox's UPN, run the following command. Replace <UserPrincipalName> with the room mailbox's UPN:

Webex teams to microsoft teams migration

Learn more about Exchange Online PowerShell.

Step 2: Configure Office 365 Threat Protection and link rewrite

To enable the one-touch join experience, meeting join link information from the third-party meeting needs to be present and readable in the meeting invite. If your organization uses the Office 365 Advanced Threat Protection Safe Links feature, or if you use a third-party solution that scans all incoming and outgoing URLs for threats, it may change the meeting join URLs and make the meeting unrecognizable by the Teams Rooms device. To make sure this doesn't happen, you need to add the third-party meeting service's URLs to the ATP Safe Links 'do not rewrite' list or the third-party URL rewrite exception list.

To add third-party meeting service URLs to the ATP Safe Links 'do not rewrite' list, follow the steps in Set up a custom do-not-rewrite URLs list using ATP Safe Links. If you use a third-party solution, refer to the instructions for that solution to add URLs to its URL rewrite exception list.

Here are some example entries that you may need to add to your ATP Safe Links 'do not rewrite' list or third-party URL rewrite exception list:

  • Cisco WebEx**
  • Zoom**, **, **

For a complete list of URLs to add to your ATP Safe Links 'do not rewrite' list or third-party URL rewrite exception list, contact the third-party meeting service provider you want to accept meeting invites from.


Only add URLs that you trust to your ATP Safe Links 'do not rewrite' list or third-party URL rewrite exception list.

Step 3: Enable third-party meetings on device

The last step you need to do is allow each Teams Rooms device to join third-party meetings. Third-party meetings require a username and email address to join them. If the username and email address that you need to use is different than the device's room mailbox, you need to add them to your device. You can do this in the device settings or in the XML config file.

Use device settings

To configure the Teams Rooms device using its touchscreen, do the following:

  1. On the Microsoft Teams Rooms device, select More ....
  2. Select Settings, and then enter the device administrator username and password.
  3. Go to the Meetings tab and select Cisco WebEx, Zoom, or both.
  4. If you want to join meetings with the username and email address associated with the room mailbox, select Join with room info.
  5. If you want to join meetings with an alternate username and email address, select Join with custom info and enter username and email address you'd like to use.
  6. Select Save and exit. Your device will restart.

Use the SkypeSettings.xml configuration file

Join Webex From Microsoft Teams


The following settings can be added to the SkypeSettings.xml file located in C:UsersSkypeAppDataLocalPackagesMicrosoft.SkypeRoomSystem_8wekyb3d8bbweLocalState. For more information about the SkypeSettings.xml file, see Manage a Microsoft Teams Rooms console settings remotely with an XML configuration file.

Microsoft Teams To Webex Login

To enable Cisco WebEx meetings, set the WebExMeetingsEnabled XML element to True, as follows.

Microsoft Teams To Webex Drive

To enable Zoom meetings, set the ZoomMeetingsEnabled XML element to True, as follows.

You can optionally specify a custom username and email address to join third-party meetings using the following XML elements. If the values you provide aren't valid, the Teams Rooms device will default to use room mailbox username and email address.

Microsoft Teams To Webex App


Webex Teams Microsoft Edge

To join Cisco WebEx meeting from a Teams Rooms device, the Cisco meeting needs to be hosted using Cisco WebEx web application version WBS 40.7 or later.