Summary

Recommendation ITU-T Q.4011.1 v.1 (2016) specifies the testing requirements for supplementary service "Closed user group (CUG) using IP multimedia (IM) core network (CN) subsystem; Conformance test specification – Part 1: Protocol implementation conformance statement (PICS)".

The version number, v.1, indicates that this is version one of Recommendation ITU-T Q.4011.1, and that it relates to Release 10 of the relevant 3GPP/ETSI standard.

This Recommendation endorses ETSI TS 101 597-1 V1.1.1 (2013-07); "IMS Network Testing (INT); Closed User Group (CUG) using IP Multimedia (IM) Core Network (CN) subsystem; Conformance Test Specification; Part 1: Protocol Implementation Conformance Statement (PICS)".