Summary

Recommendation ITU-T Q.3621 v.1 (2016) specifies requirements for supplementary services such as a conference (CONF) 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.3621, and that it relates to Release 10 of the relevant 3GPP/ETSI standard.

This Recommendation endorses ETSI TS 124 605 V10.1.0 (2013-01), "Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Conference (CONF) using IP Multimedia (IM) Core Network (CN) subsystem; Protocol specification (3GPP TS 24.605 version 10.1.0 Release 10)".