The Director role for Skype for Business provides functionality for users accessing Skype for Business, internally and externally. For more information about the Skype for Business Director, visit the Technet Wiki and see Director.

To support this capability, the Skype for Business is deployed as one or more pools, based on Standard Edition or Enterprise Edition of Skype for Business. Users can be homed on only a single pool. Clients can be configured to find their Skype for Business pool automatically. However, the DNS records that support this functionality can point to only a single pool. In a multi-pool environment, this "primary" pool will have to redirect users to their correct home pool. This is an overhead on the primary pool. The Skype for Business Director is used to offload this redirection functionality. The Director does not home any users itself but instead redirects the user to their correct pool home. The requirement for the Director is therefore for multi-pool environments with high user numbers.

After the user has been redirected to their correct pool, the Director plays no further role in communications between the client and the pool server.