Parameters

Federation is a means by which two organizations can set up a trust relationship that facilitates communication between the two groups. When a federation has been established, users in the two organizations can send each other instant messages, subscribe for presence notifications, and otherwise communicate with one another using SIP applications such as Microsoft Lync 2010. Lync Server 2010 allows for three types of federation: 1) direct federation between your organization and another; 2) federation between your organization and a public provider; and, 3) federation between your organization and a third-party hosting provider.

A public provider is an organization which provides SIP communication services for the general public. When you establish a federation relationship with a public provider, you effectively establish federation with any user who has an account hosted by that provider. For example, if you federate with MSN, then your users will be able to exchange instant messages and presence information with anyone who has an MSN instant messaging account.

In order to federate with a public provider you need to create and enable a new public provider. (In addition, the public provider will need to create a federation relationship with you.) The Set-CsPublicProvider enables you to modify property values for any of the public providers that have been configured for use in your organization.

Note that you cannot federate with a public provider if your Edge servers are configured to use default routing rather than DNS server routing.

Who can run this cmdlet: By default, members of the following groups are authorized to run the New-CsPublicProvider cmdlet: RTCUniversalServerAdmins. 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 "New-CsPublicProvider"}

None. New-CsPublicProvider does not accept pipelined input.

Creates new instances of the Microsoft.Rtc.Management.WritableConfig.Settings.Edge.DisplayPublicProvider object.

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

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New-CsPublicProvider -Identity "Fabrikam" -ProxyFqdn "proxyserver.fabrikam.com" -Enabled $True

The command shown in Example 1 creates a new federation relationship with a public provider that has the Identity Fabrikam. In addition to specifying the Identity, two other property values (and their corresponding parameters) must be set: ProxyFqdn (set to proxyserver.fabrikam.com) and Enabled (which, in this case, is set to True).

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

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$x = New-CsPublicProvider -Identity "Fabrikam" -ProxyFqdn "proxyserver.fabrikam.com" -Enabled $True -InMemory $x.VerificationLevel = "AlwaysUnverifiable" Set-CsPublicProvider -Instance $x

Example 2 demonstrates how you can create a new public provider in memory only, modify the properties of that provider, then turn the virtual provider into a real provider that can be used in your organization. To do this, the first command in the example creates a public provider with the Identity Fabrikam. In addition to including the required parameters (Identity, ProxyFqdn, and Enabled), the command adds the InMemory parameter; this creates an in-memory-only instance of the provider that is then stored in a variable named $x.

After the in-memory instance of the provider has been created the second command in the example modifies the VerificationLevel of the virtual provider. The final command then uses Set-CsPublicProvider to turn the virtual provider (stored in $x) into an actual public provider. If you do not call Set-CsPublicProvider the real provider will not be created. In turn, the virtual provider will disappear the moment you end your Windows PowerShell session or delete the variable $x.

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