Summary

Recommendation ITU-T Q.4006.1 v.1 (2016) is part 1 of the testing specifications for communication waiting service (CW) implemented on IP multimedia subsystem (IMS) basis on the user side and network side. The Recommendation specifies the protocol implementation conformance statement (PICS) which can be used for testing against Recommendation ITU-T Q.3622 v.1, Communication waiting using IP multimedia core network subsystem – Protocol specification.

The version number, v.1, indicates that this is version one of Recommendation ITU-T Q.4006.1 and that it relates to Release 10 of the relevant 3GPP/ETSI standard.