Topic Last Modified: 2011-05-16

Supporting federation with a Microsoft Lync Online 2010 customer requires you to complete the following steps:

A Lync Online customer can have multiple domains. If you want to federate with more than one of the domains, you must configure support for each of the domains with which you want to federate.

To configure support for a hosting provider

  1. From a Front End Server, Start the Lync Server Management Shell: Click Start, click All Programs, click Microsoft Lync Server 2010, and then click Lync Server Management Shell.

  2. Run the New-CsHostingProvider cmdlet to create and configure the hosting provider. For example, run:

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    New-CsHostingProvider -Identity LyncOnline -ProxyFqdn "" -VerificationLevel AlwaysVerifiable -Enabled $True -EnabledSharedAddressSpace $False -HostsOCSUsers $False -IsLocal $False

    The preceding example sets the following parameters:

    • Identity specifies a unique string value identifier for the hosting provider you are creating. Note that the command will fail if an existing provider has already been configured with that Identity.

    • ProxyFQDN specifies the fully qualified domain name (FQDN) for the proxy server used by the hosting provider. This value cannot be modified. If the hosting provider changes its proxy server you will need to delete and then recreate the entry for that provider.

    • VerificationLevel specifies how (or if) messages sent from a hosting provider are verified to ensure that they were sent from that provider.

    • Enabled indicates whether the network connection between your domain and the hosting provider is enabled. Messages cannot be exchanged between the two organizations until this value is set to True.

    • EnabledSharedAddressSpace indicates whether the hosting provider is being used in a shared SIP address space (split domain) scenario.

    • HostsOCSUsers indicates whether the hosting provider is used to host Lync Server accounts. If False, the provider hosts other account types, such as Microsoft Exchange accounts.

    • IsLocal indicates whether the proxy server used by the hosting provider is contained within your Lync Server topology.

    For details about use of this cmdlet, see New-CsHostingProvider in the Operations documentation.