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Grant-CsExternalAccessPolicy

Enables you to assign an external access policy to a user or a group of users. External access policies determine whether or not your users can: 1) communicate with users who have Session Initiation Protocol (SIP) accounts with a federated organization; 2) communicate with users who are using custom applications built with Azure Communication Services (ACS); 3) access Skype for Business Server over the Internet, without having to log on to your internal network; and, 4) communicate with users who have SIP accounts with a public instant messaging (IM) provider such as Skype.

This cmdlet was introduced in Lync Server 2010.

Syntax

Grant-CsExternalAccessPolicy []
Grant-CsExternalAccessPolicy
     [-Identity] <String>
     [[-PolicyName] <String>]
     [<CommonParameters>]
Grant-CsExternalAccessPolicy
     [[-PolicyName] <String>]
     [-Group] <String>
     [-Rank] <Int32>
     [<CommonParameters>]
Grant-CsExternalAccessPolicy
     [[-PolicyName] <String>]
     [-Global]
     [-Force]
     [<CommonParameters>]

Description

When you install Microsoft Teams or Skype for Business Server, your users are only allowed to exchange instant messages and presence information among themselves: by default, they can only communicate with other people who have SIP accounts in your Active Directory Domain Services. In addition, users are not allowed to access Skype for Business Server over the Internet; instead, they must be logged on to your internal network before they will be able to log on to Skype for Business Server.

That might be sufficient to meet your communication needs. If it doesn't meet your needs you can use external access policies to extend the ability of your users to communicate and collaborate. External access policies can grant (or revoke) the ability of your users to do any or all of the following:

  1. Communicate with people who have SIP accounts with a federated organization. Note that enabling federation will not automatically provide users with this capability. Instead, you must enable federation, and then assign users an external access policy that gives them the right to communicate with federated users.

  2. (Microsoft Teams only) Communicate with users who are using custom applications built with Azure Communication Services (ACS). This policy setting only applies if ACS federation has been enabled at the tenant level using the cmdlet Set-CsTeamsAcsFederationConfiguration.

  3. Communicate with people who have SIP accounts with a public instant messaging service such as Skype.

  4. Access Skype for Business Server over the Internet, without having to first log on to your internal network. This enables your users to use Skype for Business and log on to Skype for Business Server from an Internet café or other remote location.

When you install Skype for Business Server, a global external access policy is automatically created for you. In addition to this global policy, you can use the New-CsExternalAccessPolicy cmdlet to create additional external access policies configured at either the site or the per-user scope.

When a policy is created at the site scope, it is automatically assigned to the site in question; for example, an external access policy with the Identity site:Redmond will automatically be assigned to the Redmond site. By contrast, policies created at the per-user scope are not automatically assigned to anyone. Instead, these policies must be explicitly assigned to a user or a group of users. Assigning per-user policies is the job of the Grant-CsExternalAccessPolicy cmdlet.

Note that per-user policies always take precedent over site policies and the global policy. For example, suppose you create a per-user policy that allows communication with federated users, and you assign that policy to Ken Myer. As long as that policy is in force, Ken will be allowed to communicate with federated users even if this type of communication is not allowed by Ken's site policy or by the global policy. That's because the settings in the per-user policy take precedence.

Examples

-------------------------- EXAMPLE 1 --------------------------

Grant-CsExternalAccessPolicy -Identity "Ken Myer" -PolicyName RedmondAccessPolicy

Example 1 assigns the external access policy RedmondAccessPolicy to the user with the Active Directory display name Ken Myer.

-------------------------- EXAMPLE 2 --------------------------

Get-CsUser -LdapFilter "l=Redmond" | Grant-CsExternalAccessPolicy -PolicyName RedmondAccessPolicy

The command shown in Example 2 assigns the external access policy RedmondAccessPolicy to all the users who work in the city of Redmond. To do this, the command first uses the Get-CsUser cmdlet and the LdapFilter parameter to return a collection of all the users who work in Redmond; the filter value "l=Redmond" limits returned data to those users who work in the city of Redmond (the l in the filter, a lowercase L, represents the locality). That collection is then piped to the Grant-CsExternalAccessPolicy cmdlet, which assigns the policy RedmondAccessPolicy to each user in the collection.

-------------------------- EXAMPLE 3 --------------------------

Get-CsUser -LdapFilter "Title=Sales Representative" | Grant-CsExternalAccessPolicy -PolicyName SalesAccessPolicy

In Example 3, all the users who have the job title "Sales Representative" are assigned the external access policy SalesAccessPolicy. To perform this task, the command first uses the Get-CsUser cmdlet and the LdapFilter parameter to return a collection of all the Sales Representatives; the filter value "Title=Sales Representative" restricts the returned collection to users who have the job title "Sales Representative". This filtered collection is then piped to the Grant-CsExternalAccessPolicy cmdlet, which assigns the policy SalesAccessPolicy to each user in the collection.

-------------------------- EXAMPLE 4 --------------------------

Get-CsUser -Filter {ExternalAccessPolicy -eq $Null} | Grant-CsExternalAccessPolicy -PolicyName BasicAccessPolicy

The command shown in Example 4 assigns the external access policy BasicAccessPolicy to all the users who have not been explicitly assigned a per-user policy. (That is, users currently being governed by a site policy or by the global policy.) To do this, the Get-CsUser cmdlet and the Filter parameter are used to return the appropriate set of users; the filter value {ExternalAccessPolicy -eq $Null} limits the returned data to user accounts where the ExternalAccessPolicy property is equal to (-eq) a null value ($Null). By definition, ExternalAccessPolicy will be null only if users have not been assigned a per-user policy.

-------------------------- EXAMPLE 5 --------------------------

Get-CsUser -OU "ou=US,dc=litwareinc,dc=com" | Grant-CsExternalAccessPolicy -PolicyName USAccessPolicy

Example 5 assigns the external access policy USAccessPolicy to all the users who have accounts in the US organizational unit (OU). The command starts off by calling the Get-CsUser cmdlet and the OU parameter; the parameter value "ou=US,dc=litwareinc,dc=com" limits the returned data to user accounts found in the US OU. The returned collection is then piped to the Grant-CsExternalAccessPolicy cmdlet, which assigns the policy USAccessPolicy to each user in the collection.

-------------------------- EXAMPLE 6 --------------------------

Get-CsUser | Grant-CsExternalAccessPolicy -PolicyName $Null

Example 6 unassigns any per-user external access policy previously assigned to any of the users enabled for Skype for Business Server. To do this, the command calls the Get-CsUser cmdlet (without any additional parameters) in order to return a collection of all the users enabled for Skype for Business Server. That collection is then piped to the Grant-CsExternalAccessPolicy cmdlet, which uses the syntax "-PolicyName $Null" to remove any per-user external access policy previously assigned to these users.

Parameters

-DomainController

Enables you to specify the fully qualified domain name (FQDN) of a domain controller to be contacted when assigning the new policy. If this parameter is not specified, then the Grant-CsExternalAccessPolicy cmdlet will contact the first available domain controller.

Type:Fqdn
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False
Applies to:Microsoft Teams, Lync Server 2010, Lync Server 2013, Skype for Business Online, Skype for Business Server 2015, Skype for Business Server 2019

-Global

When you use this cmdlet without specifying a user identity, the policy applies to all users in your tenant. To skip a warning when you do this operation, specify "-Global".

Type:SwitchParameter
Position:0
Default value:None
Required:True
Accept pipeline input:False
Accept wildcard characters:False

-Group

Specifies the group used for the group policy assignment.

Type:String
Position:0
Default value:None
Required:True
Accept pipeline input:False
Accept wildcard characters:False

-Identity

Identity of the user account the policy should be assigned to. User Identities can be specified by using one of four formats: 1) the user's SIP address; 2) the user's user principal name (UPN); 3) the user's domain name and logon name, in the form domain\logon (for example, litwareinc\kenmyer); and, 4) the user's Active Directory display name (for example, Ken Myer). User Identities can also be referenced by using the user's Active Directory distinguished name.

In addition, you can use the asterisk () wildcard character when specifying the user Identity. For example, the Identity " Smith" returns all the users with a display name that ends with the string value " Smith."

Type:UserIdParameter
Position:1
Default value:None
Required:True
Accept pipeline input:True
Accept wildcard characters:False
Applies to:Microsoft Teams, Lync Server 2010, Lync Server 2013, Skype for Business Online, Skype for Business Server 2015, Skype for Business Server 2019

-PassThru

Enables you to pass a user object through the pipeline that represents the user being assigned the policy. By default, the Grant-CsExternalAccessPolicy cmdlet does not pass objects through the pipeline.

Type:SwitchParameter
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False
Applies to:Microsoft Teams, Lync Server 2010, Lync Server 2013, Skype for Business Online, Skype for Business Server 2015, Skype for Business Server 2019

-PolicyName

"Name" of the policy to be assigned. The PolicyName is simply the policy Identity minus the policy scope (the "tag:" prefix). For example, a policy with the Identity tag:Redmond has a PolicyName equal to Redmond; a policy with the Identity tag:RedmondAccessPolicy has a PolicyName equal to RedmondAccessPolicy.

To unassign a per-user policy previously assigned to a user, set the PolicyName parameter to $Null.

Type:String
Position:2
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False
Applies to:Microsoft Teams, Lync Server 2010, Lync Server 2013, Skype for Business Online, Skype for Business Server 2015, Skype for Business Server 2019

-Rank

The rank of the policy assignment, relative to other group policy assignments for the same policy type.

Type:Int32
Position:Named
Default value:None
Required:True
Accept pipeline input:False
Accept wildcard characters:False

-Tenant

This parameter is reserved for internal Microsoft use.

Type:Guid
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False
Applies to:Microsoft Teams

Inputs

String value or Microsoft.Rtc.Management.ADConnect.Schema.ADUser object. Grant-CsExternalAccessPolicy accepts pipelined input of string values representing the Identity of a user account. The cmdlet also accepts pipelined input of user objects.

Microsoft.Rtc.Management.AD.UserIdParameter

String value or Microsoft.Rtc.Management.ADConnect.Schema.ADUser object. The Grant-CsExternalAccessPolicy cmdlet accepts pipelined input of string values representing the Identity of a user account. The cmdlet also accepts pipelined input of user objects.

Outputs

By default, Grant-CsExternalAccessPolicy does not return a value or object. However, if you include the PassThru parameter, the cmdlet will return instances of the Microsoft.Rtc.Management.ADConnect.Schema.OCSUserOrAppContact object.

System.Object

By default, the Grant-CsExternalAccessPolicy cmdlet does not return a value or object. However, if you include the PassThru parameter, the cmdlet will return instances of the Microsoft.Rtc.Management.ADConnect.Schema.OCSUserOrAppContact object.