This Recommendation provides the third 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 metrics measured and reported are for the performance of this subsystem under a communications application load. The benchmark is defined for the IMS network as a whole@ as well as for several subsystems of an IMS network. The benchmark is designed so that nodes composing a subsystem can also be benchmarked alone. The initial benchmark test data defined in this Recommendation include: traffic set; traffic-time profile; benchmark test procedure.