1、 ETSI TS 124 629 V15.0.0 (2018-07) Digital cellular telecommunications system (Phase 2+) (GSM); 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 15.0.0 Re
2、lease 15) TECHNICAL SPECIFICATION ETSI ETSI TS 124 629 V15.0.0 (2018-07)13GPP TS 24.629 version 15.0.0 Release 15Reference RTS/TSGC-0124629vf00 Keywords GSM,LTE,UMTS ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562
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9、 logo are trademarks registered and owned by the GSM Association. ETSI ETSI TS 124 629 V15.0.0 (2018-07)23GPP TS 24.629 version 15.0.0 Release 15Intellectual Property Rights Essential patents IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The inform
10、ation pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: “Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards“, which is available from the E
11、TSI Secretariat. Latest updates are available on the ETSI Web server (https:/ipr.etsi.org/). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the
12、updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Trademarks The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners. ETSI claims no ownership of these except for any which are indicated
13、as being the property of ETSI, and conveys no right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks. Foreword This Technical Spec
14、ification (TS) has been produced by ETSI 3rd Generation Partnership Project (3GPP). The present document may refer to technical specifications or reports using their 3GPP identities, UMTS identities or GSM identities. These should be interpreted as being references to the corresponding ETSI delivera
15、bles. The cross reference between GSM, UMTS, 3GPP and ETSI identities can be found under http:/webapp.etsi.org/key/queryform.asp. Modal verbs terminology In the present document “shall“, “shall not“, “should“, “should not“, “may“, “need not“, “will“, “will not“, “can“ and “cannot“ are to be interpre
16、ted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of provisions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. ETSI ETSI TS 124 629 V15.0.0 (2018-07)33GPP TS 24.629 version 15.0.0 Release 15Contents Intellect
17、ual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 5g31 Scope 6g32 References 6g33 Definitions and abbreviations . 7g33.1 Definitions 7g33.2 Abbreviations . 7g34 Explicit Communication Transfer (ECT) . 8g34.1 Introduction 8g34.2 Description . 8g34.2.1 General description . 8g
18、34.3 Operational requirements . 8g34.3.1 Provision/withdrawal 8g34.3.2 Requirements on the transferor network side . 8g34.3.3 Requirements on the transferee network side . 8g34.3.4 Requirements on the transfer target network side . 8g34.4 Coding requirements 9g34.5 Signalling requirements 9g34.5.1 A
19、ctivation/deactivation . 9g34.5.1A Registration/erasure 9g34.5.1B Interrogation . 9g34.5.2 Invocation and operation 9g34.5.2.1 Actions at the transferor UE 9g34.5.2.2 Void. 10g34.5.2.3 Void. 10g34.5.2.4 Actions at the transferor AS 10g34.5.2.4.1 Invocation of ECT service . 10g34.5.2.4.1.1 Prerequisi
20、te for invocation of the ECT service 10g34.5.2.4.1.2 Determine whether the ECT applies 11g34.5.2.4.1.2.1 REFER request received on a separate dialog 11g34.5.2.4.1.2.2 REFER request received in the to be transferred dialog . 11g34.5.2.4.1.2.2A Procedures for call transfer with 3PCC 11g34.5.2.4.1.2.3
21、Actions of ECT when invoked with a transfer request 12g34.5.2.4.2 Subsequent procedures 12g34.5.2.4.2.1 Actions of ECT when invoked again by the transferred communication. 12g34.5.2.5 Actions at the transferee UE 13g34.5.2.5.1 Actions at the transferee UE (without 3PCC) 13g34.5.2.5.2 Actions at the
22、transferee UE (with 3PCC) . 13g34.5.2.6 Void. 13g34.5.2.7 Actions at the transferee AS 13g34.5.2.7.0 Prerequisite for invocation of the ECT service 13g34.5.2.7.1 Determine whether ECT applies 13g34.5.2.7.2 Actions of the ECT AS when invoked with a transfer request 13g34.5.2.7.3 Actions of the ECT AS
23、 when invoked again by the transferred communication 14g34.5.2.8 Void. 14g34.5.2.9 Void. 14g34.5.2.10 Void. 14g34.5.2.11 Void. 14g34.5.2.12 Void. 14g34.5.2.13 Void. 14g34.5.2.14 Void. 14g34.5.2.15 Actions at the transfer targets AS . 14g3ETSI ETSI TS 124 629 V15.0.0 (2018-07)43GPP TS 24.629 version
24、15.0.0 Release 154.5.2.16 Void. 14g34.5.2.17 Actions at the transfer targets UE . 14g34.6 Interaction with other services 15g34.6.1 Communication HOLD (HOLD) 15g34.6.2 Terminating Identification Presentation (TIP) 15g34.6.3 Terminating Identification Restriction (TIR) 15g34.6.4 Originating Identific
25、ation Presentation (OIP) . 15g34.6.5 Originating Identification Restriction (OIR) . 15g34.6.6 CONFerence Calling (CONF) 15g34.6.7 Communication DIVersion Services (CDIV) . 15g34.6.8 Malicious Communication IDentification (MCID) 15g34.6.9 Anonymous Communication Rejection and Communication Barring (A
26、CR/CB) . 15g34.6.10 Explicit Communication Transfer (ECT) . 16g34.6.10.1 Determine whether a previously transferred communication is transferred again 16g34.6.10.2 Handling of transfer requests 16g34.6.10.3 Actions when this ECT instance is invoked again by the transferred communication 16g34.6.11 E
27、nhanced Calling Name (eCNAM) 16g34.7 Interworking with other networks 16g34.7.1 Void 16g34.7.2 Void 16g34.7.3 Void 16g34.8 Parameter values (timers) . 16g34.9 Service configuration . 17g3Annex A (informative): Signalling flows 18g3A.1 Blind transfer 18g3A.2 Consultative transfer. 21g3A.3 Blind call
28、transfer with third party call control 22g3A.4 Consultative call transfer with third party call control . 23g3Annex B (informative): Example of filter criteria . 24g3B.1 Example of filter criteria for ECT 24g3Annex C (informative): Example charging model 25g3C.1 Example of B REFERs A to C 25g3C.2 Ex
29、ample of A REFERs B to C 26g3Annex D (informative): Void . 27g3Annex E (informative): Change history . 28g3History 29g3ETSI ETSI TS 124 629 V15.0.0 (2018-07)53GPP TS 24.629 version 15.0.0 Release 15Foreword This Technical Specification (TS) was been produced by ETSI Technical Committee Telecommunica
30、tions and Internet converged Services and Protocols for Advanced Networking (TISPAN) and originally published as ETSI TS 183 029 11. It was transferred to the 3rd Generation Partnership Project (3GPP) in January 2008. The contents of the present document are subject to continuing work within the TSG
31、 and may change following formal TSG approval. Should the TSG modify the contents of the present document, it will be re-released by the TSG with an identifying change of release date and an increase in version number as follows: Version x.y.z where: x the first digit: 1 presented to TSG for informa
32、tion; 2 presented to TSG for approval; 3 or greater indicates TSG approved document under change control. y the second digit is incremented for all changes of substance, i.e. technical enhancements, corrections, updates, etc. z the third digit is incremented when editorial only changes have been inc
33、orporated in the document. ETSI ETSI TS 124 629 V15.0.0 (2018-07)63GPP TS 24.629 version 15.0.0 Release 151 Scope The present document specifies the stage three (protocol description) of the Explicit Communication transfer (ECT) supplementary service, based on stage one and two of the ISDN ECT suppl
34、ementary service. It provides the protocol details in the IP Multimedia (IM) Core Network (CN) subsystem based on the Session Initiation Protocol (SIP) and the Session Description Protocol (SDP). The present document is applicable to User Equipment (UE) and Application Servers (AS) which are intende
35、d to support the ECT supplementary service. 2 References The following documents contain provisions which, through reference in this text, constitute provisions of the present document. - References are either specific (identified by date of publication, edition number, version number, etc.) or non-
36、specific. - For a specific reference, subsequent revisions do not apply. - For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same
37、 Release as the present document. 1 3GPP TS 24.229: “Internet Protocol (IP) multimedia call control protocol based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP); Stage 3“. 2 IETF RFC 3515: “The Session Initiation Protocol (SIP) Refer Method“. 3 IETF RFC 3892: “The Sessi
38、on Initiation Protocol (SIP) Referred-By Mechanism“. 4 IETF RFC 3891: “The Session Initiation Protocol (SIP) “Replaces“ Header“. 5 Void. 6 IETF RFC 3261: “SIP: Session Initiation Protocol“. 7 3GPP TS 29.228: “IP Multimedia (IM) Subsystem Cx and Dx Interfaces; Signalling flows and message contents“.
39、7A 3GPP TS 29.229: “Cx and Dx interfaces based on the Diameter protocol; Protocol details“. 8 3GPP TS 24.610: “Communication HOLD (HOLD) using IP Multimedia (IM) Core Network (CN) subsystem; Protocol specification“. 9 3GPP TS 24.605: “Conference (CONF) using IP Multimedia (IM) Core Network (CN) subs
40、ystem; Protocol specification“. 10 3GPP TS 24.628: “Common Basic Communication procedures using IP Multimedia (IM) Core Network (CN) subsystem; Protocol specification“. 11 ETSI TS 183 029 V2.5.0: “Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); PSTN
41、/ISDN simulation services: Explicit Communication Transfer (ECT); Protocol specification“. 12 3GPP TS 24.315: “IP Multimedia Subsystem (IMS) Operator Determined Barring (ODB); Stage 3“. 13 IETF RFC 7090 (April 2014): “Public Safety Answering Point (PSAP) Callback“. 14 IETF RFC 6665: “SIP-Specific Ev
42、ent Notification“. 15 IETF RFC 4538: “Request Authorization through Dialog Identification in the Session Initiation Protocol (SIP)“. ETSI ETSI TS 124 629 V15.0.0 (2018-07)73GPP TS 24.629 version 15.0.0 Release 1516 IETF RFC 7647 (September 2015): “Clarifications for the Use of REFER with RFC6665“. 3
43、 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: ECT session identifier URI: PSI created and inserted by an ECT AS that resolves to the AS itself NOTE 1: If this URI contains correlation information it has to be const
44、ructed in such a way that it does not reveal identity information about any party involved in the transfer. transferee: party being transferred to the transfer target transferor: party initiating the transfer transfer target: party that the existing communication is transferred to NOTE 2: After tran
45、sfer the transferee and the transfer target are in communication with each other. 3.2 Abbreviations For the purposes of the present document, the following abbreviations apply: ACR Anonymous Communication Rejection AS SIP Application Server CDIV Communication DIVersion CONF CONFerenceCSCF Call Sessi
46、on Control Function ECT Explicit Communication Transfer GRUU Globally Routable User agent URI HOLD communication HOLD IETF Internet Engineering Task Force IFC Initial Filter Criteria ISDN Integrated Services Digital Network MCID Malicious Call IDentification MGCF Media Gateway Control Function OCB O
47、utgoing Communication Barring ODB Operator Determined Barring OIP Originating Identification Presentation OIR Originating Identification presentation Restriction PSAP Public Safety Answering Point PSTN Public Switch Telephone Network S-CSCF Serving-CSCF SIP Session Initiation Protocol TIP Terminatin
48、g Identification Presentation TIR Terminating Identification presentation Restriction UE User Equipment ETSI ETSI TS 124 629 V15.0.0 (2018-07)83GPP TS 24.629 version 15.0.0 Release 154 Explicit Communication Transfer (ECT) 4.1 Introduction The service provides a party involved in a communication to
49、transfer that communication to a third party. Procedures for the ECT AS regarding operator determined barring (ODB) are defined in 3GPP TS 24.315 12. 4.2 Description 4.2.1 General description The explicit communication transfer (ECT) service provides a party involved in a communication to transfer that communication to a third party. There are three actors active in a transfer, they are acting in the following roles: transferor: the party that initiates the transfer of the active communication that it has with the transferee; transfere
