Start the Lync Server Management Shell: Click Start, click All Programs, click Microsoft Lync Server 2013, and then click Lync Server Management Shell.

Run the Set-CsHostedVoicemailPolicy cmdlet to set the global policy parameters for your environment. For example, run:

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Set-CsHostedVoicemailPolicy -Destination ExUM.fabrikam.com -Organization "corp1.litwareinc.com"

Because this command does not specify the policy’s Identity parameter, Windows PowerShell command-line interface sets the following values on the global hosted voice mail policy:

• Destination specifies the fully qualified domain name (FQDN) of the hosted Exchange UM service. This parameter is optional, but if you attempt to enable a user for hosted voice mail and the user’s assigned policy does not have a Destination value, the enable will fail.

• Organization specifies a comma-separated list of the Exchange tenants that home Lync Server users. Each tenant must be specified as the FQDN of that tenant on the hosted Exchange UM service.

Note:
In the previous example cmdlet, the value “corp1.litwareinc.com” replaces any value that might already be present in the Organization parameter. For example, if the policy already contains a comma-separated list of organizations, the full list would be replaced. If you want to add an organization to the list rather than replace the entire list, run a command similar to the following.

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$a = Get-CsHostedVoicemailPolicy $a.Organization += ",corp3.litwareinc.com" Set-CsHostedVoicemailPolicy -Organization $a.Organization