Federating with Domains of Lync Server 2010 On-Premises Deployments - IM & Online Meetings with Lync Online - Office 365

Users of a Lync Online customer account can communicate with users of Lync Server 2010 on-premises deployment using Lync instant messaging (IM) and online meetings if federation support is configured. This requires configuring the Lync Online 2010 customer account, including the following:

Configuring the Lync Online customer domain to support federation with the domain of the on-premises deployment.
Configuring the user accounts of the Lync Online customer to support federation.

Note:

The Lync Server 2010 on-premises deployment must support federation with the Lync Online customer before users of the on-premises deployment and users of the Lync Online customer can communicate.

Configuring the Lync Online Customer Domain to Support Federation

By default, domain federation is enabled for Lync Online 2010 customers, so users can communicate with all domains. To verify that domain federation is enabled, the administrator of the Lync Online 2010 customer account must verify the settings and make any configuration changes required. For details see "View your company’s Lync Online settings" and "Edit domain federation settings" at http://go.microsoft.com/fwlink/?LinkId=219139.

Note:

A Lync Online customer can have multiple domains. The administrator of the Lync Online customer must enable federation for each of the domains to be federated.

Configuring the Lync Online User Accounts

User accounts for a Microsoft Lync Online 2010 customer can be created in either of the following ways:

The administrator of the Microsoft Lync Online 2010 customer account can create the accounts directly with the hosted provider, using the Microsoft Online portal.
The administrator of the Lync Server 2010 on-premises deployment can create the accounts in Active Directory Domain Services (AD DS) in their organization, and then synchronize with the hosted provider using the Microsoft Online Directory Synchronization utility.

The administrator of the Lync Online 2010 customer account must enable the user accounts for Lync Online 2010 services. For additional details about how to configure user accounts for a Lync Online customer, see "Change Lync Online user settings" at http://go.microsoft.com/fwlink/?LinkId=219143.

The user accounts for Lync Online 2010 services that are to be allowed to communicate with the users of the Lync Server 2010 on-premises deployment must also be enabled for federation.

Note:

If you enable federation with multiple domains of a Lync Online customer, the administrator of the Lync Online customer account must enable users for each domain for which federation is to be supported.

To enable users of a Lync Online customer for federation

1. Go to https://portal.microsoftonline.com/ and log in using your Office365 Admin credentials.

2. Click Admin at the top of the page.

3. Under Admin Overview in the navigation pane, click Users.

4. Click the user that you want to enable for Lync Online services, and then click Edit.

5. Click Properties, and then specify the information for the user.

6. Click Settings, and then verify that the user is allowed to sign in to access services.

7. Click Licenses, and then click Microsoft Office 365 (Plan E3).

8. Click More, and then click Lync Online / Configure User Settings.

9. Click Options, and then verify that the user is enabled for File Transfer and for Audio/Video.

10. Click External Access, and then verify that the user is enabled for Domain Federation.