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1.
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Clear description of the referenced document:
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Name:
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ETSI TS 123 218 V15.0.0 (2018-06)
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Title:
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Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; IP Multimedia (IM) session handling; IM call model; Stage 2 (3GPP TS 23.218 version 15.0.0 Release 15)
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2.
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Status of approval:
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It is approved and published by ETSI.
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3.
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Justification for the specific reference:
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It is used as a reference in the Recommendation ITU-T Q.3644 (formerly Q.VoLTE-SAO-req).
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4.
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Current information, if any, about IPR issues:
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See: https://ipr.etsi.org/.
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5.
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Other useful information describing the "Quality" of the document:
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The status of the referred ETSI document is approved standard.
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6.
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The degree of stability or maturity of the document:
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The status of the referred ETSI document is published standard.
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7.
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Relationship with other existing or emerging documents:
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None
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8.
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Any explicit references within that referenced document should also be listed:
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[1] Void./
[2] 3GPP TR 21.905: "Vocabulary for 3GPP Specifications"./
[3] 3GPP TS 23.228: " IP multimedia subsystem; Stage 2"./
[4] Void./
[5] 3GPP TS 24.229: "IP multimedia call control protocol based on SIP and SDP; stage 3"./
[6] IETF RFC 3261: "SIP: Session Initiation Protocol"./
[7] 3GPP TR 29.998-4-4 Release 8: "Open Service Access (OSA); Application Programming Interface (API) Mapping for Open Service Access (OSA); Part 4: Call Control Service Mapping; Subpart 4: Multiparty Call Control SIP"./
[8] 3GPP TS 29.228: "IP Multimedia (IM) Subsystem Cx Interface; Signalling flows and message contents"./
[9] 3GPP TS 23.278: "Customised Applications for Mobile network Enhanced Logic (CAMEL); IP Multimedia System (IMS) interworking; Stage 2"./
[10] 3GPP TS 23.008: "Organisation of subscriber data"./
[11] 3GPP TS 33.203: "Access security for IP based services"./
[12] 3GPP TS 29.198: "Open Service Access (OSA); Application programming Interface (API)"./
[13] Void./
[14] 3GPP TS 29.078: "Customised Applications for Mobile network Enhanced Logic (CAMEL) Phase 3; CAMEL Application Part (CAP) specification"./
[15] IETF RFC 3264: "An Offer/Answer Model with Session Description Protocol"./
[16] 3GPP TS 29.002: "Mobile Application Part (MAP) specification"./
[17] 3GPP TS 29.229: "Cx Interface based on the Diameter protocol"./
[18] 3GPP TS 29.328: "IP Multimedia Subsystem (IMS) Sh Interface; Signalling flows and message contents"./
[19] 3GPP TS 29.329: "Sh Interface based on the Diameter protocol"./
[20] 3GPP TS 32.240: "Telecommunication management; Charging management; Charging architecture and principles"./
[21] 3GPP TS 32.260: "Telecommunication management; Charging management; IP Multimedia Subsystem (IMS) charging"./
[22] IETF RFC 5627 (October 2009): "Obtaining and Using Globally Routable User Agent URIs (GRUUs) in the Session Initiation Protocol (SIP)"./
[23] 3GPP TS 24.147: "Conferencing using the IP Multimedia (IM) Core Network (CN) subsystem; Stage 3"./
[24] 3GPP TS 24.247: "Messaging service using the IP Multimedia (IM) Core Network (CN) subsystem; Stage 3"./
[25] 3GPP TS 33.328: "IMS Media Plane Security"./
[26] 3GPP TS 29.364: "IP Multimedia Subsystem (IMS) Application Server (AS) service data descriptions for AS interoperability".
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9.
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Qualification of
ETSI:
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ETSI is recognized under the provisions of ITU-T Recommendations A.5 and A.6. Qualifying information is on file at TSB.
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10.
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Other (for any supplementary information):
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None
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