About manage external meetings and chat with people

Question

About manage external meetings and chat with people

Cliff 86

Hi All,

I would like to ask a question about restricting users and external people from using Teams.

Can specific company users be allowed to use Teams to have meetings and chat with people within the company, but not with non company ?

How to setup?

Thanks.

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Answer 1

Anonymous

Hi @Cliff

Do you want users within your organization to be able to chat and hold meetings only with users within your organization?

Administrators can achieve this functionality by setting up external access in the Teams admin center.With the external access feature in Teams, you can allow users in your organization to chat and meet with people outside the organization who are using Microsoft as an identity provider. You can configure external access with:

Other Microsoft 365 organizations (chat and meetings)

Teams users not managed by an organization (chat only)
Skype users (chat only)

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If you want more details, please refer to this document.

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Anonymous

2024-01-04T07:45:15.1366667+00:00

Hi @Cliff

You can allow or block certain meetings and chats with other Teams organizations and Skype for Business by configuring user policies in PowerShell.

Please refer to this document to Configure external access policies.
Cliff 86 Reputation points

2024-01-04T10:02:36.4+00:00

@Anonymous

Hello, I have tried to use this powershell script to specify an user is prohibited from establishing Teams meetings or chats with external organizations. I did not disable the global setting and added a new policy to set all the conditions to false(like photo).

However, my test results showed that chats may not be able to communicate with external organizations, which is correct, but whether the meeting is initiated by me or invited by external organizations, I can join the meeting.

I don't know which setting has the problem?
Anonymous

2024-01-05T02:28:55.47+00:00

Hi @Cliff

Please note that meeting participants from other organizations who don't have the correct external access permissions will be considered anonymous when they join meetings.

Similarly, if a meeting organizer in your organization doesn't have external access permissions, all external participants joining their meetings will be considered anonymous unless they're logged in with a guest account.

If you want to disable external users from accessing meetings as anonymous users, please refer to the methods in this document, which include disabling anonymous users from accessing meetings for the entire organization, for meetings created by individual users, and using PowerShell.
Cliff 86 Reputation points

2024-01-05T05:09:22.2633333+00:00

Hi, LiweiTian-MSFT

So if I turn off anonymous users to join the meeting, I can only prevent it from being my own meeting. If it is an external user's meeting, it depends on the other party's Teams settings,

right?
Cliff 86 Reputation points

2024-01-05T05:46:57.6766667+00:00

Hi @Anonymous

I tested it and found that external user joining the meeting will become guests. So I also to diasble guest to join the meeting. This restricts whether it can also be specified to a useraccount like Powershell, it seems that my powershell command did not meet my expectations.
Anonymous

2024-01-05T06:02:10.7166667+00:00

Hi @Cliff

If external users join as guest users, it proves that they have been invited to join the organization as guest users by your organization before. At this time, they are different from ordinary external users.

A verified external meeting participant is one that is logged in to Teams in Microsoft 365 in way that you trust. There are two types of verified external meeting participants:

Guests - people who are logged in to Teams with a guest account in your directory. Guests can be anyone with an email address, including people from other Microsoft 365 organizations.

People from trusted organizations - people in other Microsoft 365 organizations with which you have configured a two-way trust relationship in external access and who have the required user-level external access permissions

External participants who are not verified in one of these two ways are considered anonymous.
Anonymous

2024-01-05T06:10:33.2+00:00

Hi @Cliff

Your users can decide who can attend meetings they create and can accept or reject meeting invitations from users in other organizations, but you can't prevent other organizations from sending you meeting invitations.
Cliff 86 Reputation points

2024-01-05T06:15:33.52+00:00
Hi LiweiTian-MSFT,

OK, let me summarize the issue and kindly ask for your reply.

could the previous powershell policy cmd can not restrict anonymity or guest to join in Teams?

2.Or is there a way to prevent an account from establishing or joining meetings with users who are external organization?
Anonymous

2024-01-05T07:52:33.9566667+00:00

Hi @Cliff

The original PowerShell cmd provided to you (the one in the first comment) restricts users within your organization from chatting with external users.

Essentially this cmd cannot completely prevent external users from entering the meeting, they just enter as anonymous users when entering the meeting.

Configure policies for your users in the Teams admin center (turn off the Anonymous users can join a meeting function). This method can prevent external users from joining the meeting for these users.

A guest user essentially acts as a member within your organization (unlike external users). If you want to prevent them from joining a meeting, the best way is to not invite them when you create the meeting, because once you invite them, they can enter. Meeting.

Depending on your needs, we think the best way is to set up a lobby. In Teams meetings, the meeting lobby keeps participants from joining a meeting until they're admitted by an organizer, co-organizer, or presenter. When people are in the lobby, organizers, co-organizers, and presenters are notified and can choose when to admit them to the meeting.

Answer 2

Cliff 86

Hi @Anonymous

Thank you for your reply.

May I ask if this setting will be applied to all internal organizations users, or can I specify some users to apply it?

I just need to setup a few users that can't meeting and chat to external organizations.

Thank you.

Answer 3

Julie 155 MVP

Hi

You can limit external access to specific users using PowerShell script.

You can check here: IT Admin - Manage external meetings and chat with people and Organizations using Microsoft Identity

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About manage external meetings and chat with people

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