From a user account that is a member of the RTCUniversalServerAdmins group (or has equivalent user rights), or is assigned to the CsAdministrator role, log on to any computer in your internal deployment.

Open a browser window, and then enter the Admin URL to open the Lync Server Control Panel. For details about the different methods you can use to start Lync Server Control Panel, see Open Lync Server Administrative Tools.

In the left navigation bar, click Federation and External Access, and then click SIP Federated Providers.

If you need to create a new Hosted provider, click New and then click Hosted provider.

If you need to edit an entry from the list of Hosted providers, select a hosted provider, click Edit, then click Show details.

On the Edit SIP Federated Provider page, you can type or edit the following settings:

• Enable communications with this provider   Selecting this setting enables communications with this provider’s users.

• Provider name:   A required property, type the name of the provider as it will be reflected in the listing of SIP Federated Providers.

• Access Edge service (FQDN):   A required property, type the fully qualified domain name of the Access Edge service of the hosted provider that you are configuring. This information should be provided by the hosted provider, and should only be changed if the hosted provider makes a change to the FQDN of the Access Edge service at the hosted provider.

• Default verification level:   The default setting, Allow users to communicate with people on their Contacts list who use this provider will limit communication to contacts that you have accepted and are in your contact list.

  Selecting Allow users to communicate with everyone using this provider removes the restriction that you must have received and accepted a contact invite. This setting does not limit who can contact you from the hosted provider’s network.

When you are done configuring the settings, click Commit to save, or click Cancel to discard your changes.