Summary

Recommendation ITU-T Q.3623 v.1 (2016) specifies requirements for supplementary service such as an explicit communication transfer (ECT) to be provided on the IP multimedia subsystem (IMS) platform.

The version number, v.1, indicates that this is version one of Recommendation ITU-T Q.3623, and that it relates to Release 10 of the relevant 3GPP/ETSI standard.

This Recommendation endorses ETSI TS 124 629 V10.2.0 (2013-04), "Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Explicit Communication Transfer (ECT) using IP Multimedia (IM) Core Network (CN) subsystem; Protocol specification (3GPP TS 24.629 version 10.2.0 Release 10)".