Application rules define the type of SBC-based Unified Communications (UC) applications Avaya SBC protects. You can also determine the maximum number of concurrent voice and video sessions that your network can process before resource exhaustion. Application rules are part of the Endpoint Policy Group configuration. You can select a customized application rule or the default application rule from a list during the configuration while creating an Endpoint Policy Group. The Application Rules function is available in the Domain Policies menu.