Summary

Recommendation ITU-T Q.4011.2 provides the testing requirements for the supplementary service "Closed user group (CUG) using IP multimedia (IM) core network (CN) subsystem; Conformance Test Specification – Part 2: Test suite structure and test purposes (TSS&TP); Network side" (based on Recommendation ITU‑T Q.3627 v.1).

The version number, v.1, indicates that this is version one of Recommendation ITU-T Q.4011.2, and that it relates to Release 10 of the relevant 3GPP/ETSI standard.