[This is preliminary documentation and is subject to change. Blank topics are included as placeholders.]

Forces the specified Address Book servers to synchronize their contents with Active Directory Domain Services. Users query Address Book files any time they search for a new contact; consequently, these files must be in synch with the user information stored in Active Directory.


Update-CsAddressBook [-Fqdn <Fqdn>] [-Force <SwitchParameter>]


Parameter Required Type Description




Enables you to specify an individual Address Book to be updated. If this parameter is not included then all of your Address Book servers will be synchronized with Active Directory. Individual Address Book servers should be referenced by their fully qualified domain name; for example, atl-abs-001.litwareinc.com.

Detailed Description

Address Book servers are intermediaries between Active Directory and Microsoft Communications Server 2010. The Address Book server ensures that the user information stored in Communications Server 2010 is in synch with the user information stored in Active Directory. By default, Address Book servers synch with Active Directory every 5 minutes. This time interval can be modified by using the Set-CsAddressBookConfiguration cmdlet.

If you can’t wait for synchronization to take place of if it appears that, for some reason, synchronization isn’t taking place, you can use the Update-CsAddressBook cmdlet to force an Address Book server to immediately synch with the user information stored in Active Directory.

Return Types

Update-CsAddressBook updates existing instances of the Microsoft.Rtc.Management.WriteableConfig.Settings.AddressBook.AddressBookSettings object.


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

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In Example 1, Update-CsAddressBook is called without any parameters. This synchronizes all the Address Book servers in the organization.

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

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Update-CsAddressBook -Fqdn atl-abs-001.litwareinc.com

In Example 2, only a single Address Book server is synchronized: the server with the fully qualified domain name (FQDN) atl-abs-001.litwareinc.com.