One potential use case for a Director is to control the client versions connecting to the Lync Server infrastructure. Since the Director is an initial sign-in point for any client, it makes sense to perform a filter check at the sign-in point. To manage which types of clients can connect to a Director, use the following steps:
1. Open the Lync Server Control Panel.
2. Click Clients.
3. Ensure that Client Version Policy is highlighted, click New, and select Pool Policy.
If a policy is edited at the Service level as in this previous example, it will apply only to the selected service and pool. The example only enforces the client version filter at the Director, meaning that an endpoint could sign in to a Front End pool ...