This chapter explored how certain calls can be restricted by applying CSS and partitions to devices and patterns. Because it is often required that different devices have access to various destinations, the steps for creating and applying CSS and partitions are provided.
When deploying VoIP solutions, ensuring the quality of the call is essential. To accomplish this, CAC was discussed. Detailed steps were provided that show how to configure a gatekeeper that provides CAC for calls between clusters. Steps were also included to show how to configure locations for CAC, for calls to and from remote sites.
Finally, special services, such as 911, were discussed in this chapter. An overview of the required steps for the proper configuration of these services was given.