Recommendation ITU-T Q.3932.2 provides the second part of a multi-part deliverable covering the IMS/NGN Performance Benchmark, as identified below: Part 1: "Core Concepts"; Part 2: "Subsystem Configurations and Benchmarks"; Part 3: "Traffic Sets and Traffic Profiles"; Part 4: "Reference Load network quality parameters". The present Recommendation covers Part 2 and contains the specific benchmarking use cases and scenarios, along with scenario specific metrics and design objectives. It also defines the SUT configuration parameters. The present document also contains any required extensions to the overall descriptions, if necessary, for the specific scenario.