MPE devices perform the following actions:
- Provides policy and charging rules function (PCRF) for controlling policy decisions and flow-based charging
Note: Refer to Policy Wizard Reference for information on how to create, organize, and manage policies and the elements they control.
- Obtains subscriber information, evaluates the applicable policies, and directs the PCEF network element to handle the session based on policy rules when the MPE device receives a request for a policy decision for a subscriber session
- Communicates with clients using Diameter application interfaces (for example, Gx and Rx) and can communicate with an online charging system (OCS) directly using an Sy interface
See Figure 1 for a representation of the various Diameter interfaces used by Policy Management system.
- Sends Short Message Service (SMS) or Simple Mail Transfer Protocol (SMTP) notifications to subscribers, if enabled
- Sends analytics data stream (ADS) information, as a series of policy event records (PERs), to third-party systems for analysis
Note: You can increase the capacity of the Policy Management network by adding additional MPE devices.
See Multimedia Policy Engine Devices for detailed information.