Parameters

Client version policies represent a collection of client version rules; in turn, client version rules are used to determine which client applications are allowed to log on to Lync Server 2010. When a user attempts to log on to Lync Server 2010, his or her client application sends a SIP header to the server; this header includes detailed information about the application itself, including the software’s major version, minor version, and build number. The version information included in the SIP header is then checked against a collection of client version rules to see if any rules apply to that particular application. If such a rule exists, Lync Server 2010 will then take the action specified by the rule. For example, the rule might tell Lync Server 2010 to allow the logon, to block it, or to allow the logon but then silently update the client application to the latest version (for example, update Office Communicator 2007 R2 to Microsoft Lync 2010).

Client version policies, which can be applied at the global scope, the site scope, the service scope (Registrar service only), or the per-user scope, give you flexibility in determining which client applications can be used to access the system. For example, you might want to prevent users from logging on to Lync Server 2010 by using Communicator 2007 R2 because this older client application does not support the same features and capabilities as Lync 2010. However, due to hardware or software conflicts, you might also have a select group of users who cannot upgrade to Lync 2010. In that case, you can create a separate rule -- and a separate client version policy -- that allows those users to log on from within Communicator 2007 R2.

The Grant-CsClientVersionPolicy cmdlet enables you to assign client version policies to individual users. When you create a per-user policy, that policy is not automatically assigned to anyone; assignment does not take place until you call Grant-CsClientVersionPolicy to explicitly assign the policy to a user or set of users.

It’s important to note that client version policies do not apply to federated users; instead, federated users are bound by the client version policies used in their own organization. For example, suppose a federated user uses client A, a client allowed by the federated organization. As long as the federated organization allows the use of client A, this user will be able to communicate with your organization using that client. This will be true even if your client version policy blocks the use of client A. Client version policies enforced in your organization do not override the client version policies used in a federated organization.

Who can run this cmdlet: By default, members of the following groups are authorized to run the Grant-CsClientVersionPolicy cmdlet locally: RTCUniversalUserAdmins. To return a list of all the role-based access control (RBAC) roles this cmdlet has been assigned to (including any custom RBAC roles you have created yourself), run the following command from the Windows PowerShell prompt:

Get-CsAdminRole | Where-Object {$_.Cmdlets –match "Grant-CsClientVersionPolicy"}

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

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

-------------------------- Example 1 --------------------------

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Grant-CsClientVersionPolicy -Identity "Ken Myer" -PolicyName "RedmondClientVersionPolicy"

In Example 1, the client version policy RedmondClientVersionPolicy is assigned to user Ken Myer.

-------------------------- Example 2 --------------------------

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Get-CsUser -LdapFilter "l=Redmond" | Grant-CsClientVersionPolicy -PolicyName "RedmondClientVersionPolicy"

The command shown in Example 2 assigns the client version policy RedmondClientVersionPolicy to all the users who work in the city of Redmond. To do this, the command first uses Get-CsUser and the LdapFilter parameter to retrieve the appropriate collection of user accounts; the filter value "l=Redmond" (where "l" is the lowercase letter L, the LDAP attribute name for "locality") limits data retrieval to users who work in the city of Redmond. This collection is then piped to Grant-CsClientVersionPolicy, which assigns the specified policy to each user in the collection.

-------------------------- Example 3 --------------------------

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Get-CsUser -OU "ou=Redmond,ou=North America,dc=litwareinc,dc=com" | Grant-CsClientVersionPolicy -PolicyName "RedmondClientVersionPolicy"

In Example 3, all the users in a specific organizational unit (OU) are assigned the client version policy RedmondClientVersionPolicy. To accomplish this task, the command first calls Get-CsUser and the OU parameter; the parameter value represents the distinguished name of the OU in which users are to be assigned the client version policy (ou=Redmond,ou=North America,dc=litwareinc,dc=com). After the user accounts have been retrieved, the collection is piped to Grant-CsClientVersionPolicy, which assigns RedmondClientVersionPolicy to each of those users.

-------------------------- Example 4 --------------------------

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Get-CsUser -Filter {VoicePolicy -eq "RedmondVoicePolicy"} | Grant-CsClientVersionPolicy -PolicyName "RedmondClientVersionPolicy"

The preceding command assigns the client version policy RedmondClientVersionPolicy to all of the users who have previously been assigned the voice policy RedmondVoicePolicy. To do this, the command first calls Get-CsUser along with the Filter parameter; the filter value {VoicePolicy -eq "RedmondVoicePolicy"} ensures that the only user accounts returned are those where the VoicePolicy property is equal to "RedmondVoicePolicy". The resulting user accounts are then piped to Grant-CsClientVersionPolicy and assigned the client version policy RedmondClientVersionPolicy.

-------------------------- Example 5 --------------------------

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Get-CsUser | Grant-CsClientVersionPolicy -PolicyName $Null

In Example 5, all the users in the organization are unassigned any per-user client version policies previously assigned to them. To do this, the command first uses Get-CsUser to return a collection of all the users in the organization who have been enabled for Lync Server. This collection is then piped to Remove-CsClientVersionPolicy, which removes any per-user client version policies assigned to those users. This is done by setting the parameter value of PolicyName to $null.

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