Description of the illustration dgw_extensionpoints.gif

This figure illustrates the diameter-request processing extension points: PreProcessor extension, OCSBypass extension, Request-Received extension, Pre-OCS extension, and Post-OCS extension. This figure shows that the PreProcessor and OCSBypass extension processes the CCRs before any rating, discounting, or alteration logic has been invoked. The Request-Received extension processes the CCR before any rating, discounting, or alteration logic has been invoked and also it allows immediate response (CCA) that bypasses the OCS completely. The Pre-OCS extension processes the ECE Usage Request payload before any rating, discounting, or alteration logic has been invoked. The Post-OCS extension processes the CCA before it is returned to the diameter client.