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Outbound calling restriction policies for Audio Conferencing and user PSTN calls

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    Microsoft Teams

As an admin, you can use outbound call controls to restrict the types of audio conferencing and end-user Public Switched Telephone Network (PSTN) calls that users in your organization can make.

Outbound call controls can be applied on a per-user basis or on a tenant basis and provide the following two controls to independently restrict each type of outbound calls. By default, both controls are set to allow international and domestic outbound calls.

Control Description Control options
Audio Conferencing PSTN calls Restricts the type of outbound
calls that are allowed from within
meetings organized by a user.		 Any destination (default)
In the same country or region as the organizer
Zone A countries or regions only
Don't allow
End-user PSTN calls Restricts the type of calls
that users can make.		 International and Domestic (default)
Domestic
None

To find out which countries and regions are considered Zone A, see Country and region zones for Audio Conferencing.

Note

A call is considered domestic if the number dialed is in the same country/region where Microsoft 365 or Office 365 has been set up for the organizer of the meeting (in the case of audio conferencing), or the end user (in the case of end user PSTN calls).

Note

We are frequently updating how you can manage features, so the steps here might be a little different from what you see.

Restrict audio conferencing outbound calls

Using the Microsoft Teams admin center

  1. In the left navigation, select Users, and then select the display name of the user from the list of available users.

  2. Next go to Audio Conferencing, select Edit.

  3. Under Dial-out from meetings, select the dial-out restriction option you want.

  4. Select Save.

Using PowerShell

A single policy called OnlineDialOutPolicy controls outbound call restrictions, which have a restriction attribute for each. The policy can't be customized, but there are pre-defined policy instances for each combination of settings.

You can use the Get-CSOnlineDialOutPolicy cmdlet to view the outbound calling policies and use the following command for the setup.

Set the policy on a per-user level with the following cmdlet. (The Grant cmdlet doesn't contain the word "Online" as the Get cmdlet does.)

Grant-CsDialoutPolicy -Identity <username> -PolicyName <policy name>

Set the policy on the tenant level with the following cmdlet.

Grant-CsDialoutPolicy -PolicyName <policy name>  -Global

All users of the tenant who don't have any dial-out policy assigned get this policy. Other users remain with their current policy.

Check the current policy at the tenant level with the following cmdlet.

Get-CSOnlineDialOutPolicy -Identity Global

The following table provides an overview of each policy.

PowerShell cmdlet Description
Identity='tag:DialoutCPCandPSTNInternational' User in the conference can dial out to international and domestic numbers, and this user can also make outbound calls to international and domestic numbers.
Identity='tag:DialoutCPCDomesticPSTNInternational' User in the conference can only dial out to domestic numbers, and this user can make outbound calls to international and domestic numbers.
Identity='tag:DialoutCPCDisabledPSTNInternational' User in the conference can't dial out. This user can make outbound calls to international and domestic numbers.
Identity='tag:DialoutCPCInternationalPSTNDomestic' User in the conference can dial out to international and domestic numbers, and this user can only make outbound calls to domestic PSTN number.
Identity='tag:DialoutCPCInternationalPSTNDisabled' User in the conference can dial out to international and domestic numbers, and this user can't make any outbound calls to PSTN number besides emergency numbers.
Identity='tag:DialoutCPCandPSTNDomestic' User in the conference can only dial out to domestic numbers, and this user can only make outbound call to domestic PSTN numbers.
Identity='tag:DialoutCPCDomesticPSTNDisabled' User in the conference can only dial out to domestic numbers, and this user can't make any outbound calls to PSTN number besides emergency numbers.
Identity='tag:DialoutCPCDisabledPSTNDomestic' User in the conference can't dial out, and this user can only make outbound call to domestic PSTN numbers.
Identity='tag:DialoutCPCandPSTNDisabled' User in the conference can't dial out, and this user can't make any outbound calls to PSTN number besides emergency numbers.
Identity='tag:DialoutCPCZoneAPSTNInternational' User in the conference can only dial out to Zone A countries and regions, and this user can make outbound calls to international and domestic numbers.
Identity='tag:DialoutCPCZoneAPSTNDomestic' User in the conference can only dial out to Zone A countries and regions, and this user can only make outbound calls to domestic PSTN number.
Identity='tag:DialoutCPCZoneAPSTNDisabled' User in the conference can only dial out to Zone A countries and regions, and this user can't make any outbound calls to PSTN number besides emergency numbers.