1.
Clear description of the referenced document:
Title:
Digital cellular telecommunications system (Phase 2+);Universal Mobile Telecommunications System (UMTS);LTE;Conference (CONF) using IP Multimedia (IM) Core Network (CN) subsystem
2.
Status of approval:
Approved; ETSI TS 124.605 was published in 2013-01. It is a ETSI standard document.
3.
Justification for the specific reference:
It is used as a reference in the Recommendation ITU-T Q.30xx_VoLTE_Interconnection_FW
4.
Current information, if any, about IPR issues:
Information about IPR could be available for ETSI members and non-members and found in SR 000 314: „Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards", which is available free of charge from the ETSI Secretariat and on the ETSI web site http://www.etsi.org/ipr.
5.
Other useful information describing the "Quality" of the document:
ETSI TS 124.605 was published in 2013-01. It is an ETSI standard document.
6.
The degree of stability or maturity of the document:
ETSI TS 124.605 was published in 2013-01. It is an ETSI standard document.
7.
Relationship with other existing or emerging documents:
[2] 3GPP TS 24.229: "INTERNET PROTOCOL (IP) MULTIMEDIA CALL CONTROL PROTOCOL BASED ON SESSION INITIATION PROTOCOL (SIP) AND SESSION DESCRIPTION PROTOCOL (SDP); STAGE 3".
[12] 3GPP TS 24.610: "COMMUNICATION HOLD (HOLD) USING IP MULTIMEDIA (IM) CORE NETWORK (CN) SUBSYSTEM; PROTOCOL SPECIFICATION".
8.
Any explicit references within that referenced document should also be listed:
[[1] 3GPP TS 22.173: "IP Multimedia Core Network Subsystem (IMS) Multimedia Telephony Service and supplementary services; Stage 1"./
[2] 3GPP TS 24.229: "Internet Protocol (IP) multimedia call control protocol based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP); Stage 3"./
[3] Void/
[4] Void./
[5] Void./
[6] Void./
[7] 3GPP TS 24.147: "Conferencing using the IP Multimedia (IM) Core Network (CN) subsystem; Stage 3"./
[8] IETF RFC 3891: "The SIP Replaces header"./
[9] Void./
[10] Void/
[11] 3GPP TS 24.628: "Common Basic Communication procedures using IP Multimedia (IM) Core Network (CN) subsystem; Protocol specification"./
[12] 3GPP TS 24.610: "Communication HOLD (HOLD) using IP Multimedia (IM) Core Network (CN) subsystem; Protocol specification"./
9.
Qualification of
ETSI:
ETSI is recognized under the provisions of ITU-T Recommendations A.5 and A.6. Qualifying information is on file at TSB.
10.
Other (for any supplementary information):
If the Study Group decides to make the reference to the in ETSI 124.605, the reference should always be made by ETSI number.