Dynamically allocating network resources for communication session

摘要

A primary call admission controller (CAC) system receives a request from a client to allocate a network resource such as a network bandwidth. The primary CAC system may determine subordinate CAC to delegate the allocation and transfer the request to the subordinate CAC. Subsequently, the subordinate CAC analyzes the communication session attributes to determine an available network resource for the communication session. Upon a positive determination, the subordinate CAC allocates the network resource and signals the allocation up the network chain to the primary CAC and the client.