1、 ETSI TS 124 525 V14.0.0 (2017-04) Universal Mobile Telecommunications System (UMTS); LTE; Business trunking; Architecture and functional description (3GPP TS 24.525 version 14.0.0 Release 14) TECHNICAL SPECIFICATION ETSI ETSI TS 124 525 V14.0.0 (2017-04)13GPP TS 24.525 version 14.0.0 Release 14Refe
2、rence RTS/TSGC-0124525ve00 Keywords 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 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important notice Th
3、e present document can be downloaded from: http:/www.etsi.org/standards-search The present document may be made available in electronic versions and/or in print. The content of any electronic and/or print versions of the present document shall not be modified without the prior written authorization
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6、ces: https:/portal.etsi.org/People/CommiteeSupportStaff.aspx Copyright Notification No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm except as authorized by written permission of ETSI. The content of the PDF version sha
7、ll not be modified without the written authorization of ETSI. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2017. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTMand the ETSI logo are Trade Marks of ETSI registered fo
8、r the benefit of its Members. 3GPPTM and LTE are Trade Marks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM and the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI TS 124 525 V14.0.0 (2017-04)23GPP TS 24.525 version 14.0
9、.0 Release 14Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information 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: “Intellec
10、tual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (https:/ipr.etsi.org/). Pursuant to the ETSI IPR Policy, no investigation, includin
11、g 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 updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This Technical Specification (TS) has b
12、een 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 deliverables. The cross refe
13、rence 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 interpreted as described in
14、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 124 525 V14.0.0 (2017-04)33GPP TS 24.525 version 14.0.0 Release 14Contents Intellectual Property Rights
15、2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 7g31 Scope 8g32 References 8g33 Definitions, symbols and abbreviations . 10g33.1 Definitions 10g33.2 Abbreviations . 10g34 Overview 10g34.1 General principles. 10g34.2 Access network interconnection . 10g34.3 Service level layer interconnection
16、11g35 Functional architecture . 12g35.1 General . 12g35.2 Subscription based business trunking . 12g35.2.1 General 12g35.2.2 Used functional entities at the service layer 12g35.2.3 Used reference points at the service layer . 13g35.2.4 Used functional entities at the transport layer . 13g35.2.5 Used
17、 reference points at the transport layer 13g35.3 Peering-based business trunking 13g35.3.1 General 13g35.3.2 Used functional entities at the service layer 14g35.3.3 Used reference points at the service layer . 15g35.3.4 Used functional entities at the transport layer . 15g35.3.5 Used reference point
18、s at the transport layer 15g35.4 Session-level virtual leased line . 16g35.4.1 General 16g35.4.2 Used functional entities at the service layer 16g35.4.3 Used reference points at the service layer . 16g35.4.4 Used functional entities at the transport layer . 16g35.4.5 Used reference points at the tra
19、nsport layer 16g35.5 Support for roaming NGCN user . 17g35.5.1 General 17g35.5.2 Used functional entities at the service layer 17g35.5.3 Used reference points at the service layer . 17g35.5.4 Used functional entities at the transport layer . 17g35.5.5 Used reference points at the transport layer 17g
20、35.6 Support for roaming NGN user 18g36 Procedures 18g36.1 Subscription based business trunking . 18g36.1.1 Introduction. 18g36.1.2 Identification . 18g36.1.3 Registration . 18g36.1.4 Requests originating from an NGCN user entering NGN. 19g36.1.4.1 General 19g36.1.4.2 NGCN not considered as privileg
21、ed sender and not trusted by NGN . 20g36.1.4.3 NGCN considered as privileged sender and trusted by NGN . 21g36.1.4.4 NGCN considered as privileged sender and not trusted by NGN . 21g36.1.5 Requests terminating to an NGCN user leaving NGN 22g3ETSI ETSI TS 124 525 V14.0.0 (2017-04)43GPP TS 24.525 vers
22、ion 14.0.0 Release 146.1.5.1 General 22g36.1.5.2 NGCN not considered as privileged sender and not trusted by NGN . 23g36.1.5.3 NGCN considered as privileged sender and trusted by NGN . 23g36.1.5.4 NGCN considered as privileged sender and not trusted by NGN . 23g36.1.6 Business trunking applications
23、. 24g36.1.6.1 General 24g36.1.6.2 Routeing capabilities . 24g36.1.6.2.1 Overview . 24g36.1.6.2.2 Break-in . 24g36.1.6.2.3 Break-out . 24g36.1.6.2.4 Bulk rerouting 24g36.1.6.3 Communication admission control 25g36.1.6.4 Anonymous communication rejection. 25g36.1.6.5 Communication barring 25g36.1.7 Si
24、gnalling transparency . 25g36.1.8 Involvement of functions on the media path . 25g36.1.8.1 General 25g36.1.8.2 DTMF . 25g36.1.8.3 Codecs . 26g36.1.9 Handling of the P-Access-Network-Info header field. 26g36.1.10 Emergency calls 26g36.1.11 Charging . 27g36.1.12 Advice of Charge 27g36.1.13 NAT travers
25、al . 27g36.1.14 Private network traffic 27g36.1.15 P-CSCF and IP-CAN redundancy 28g36.2 Peering-based business trunking 28g36.2.1 Introduction. 28g36.2.2 Identification . 28g36.2.3 Registration . 28g36.2.4 Requests originating from an NGCN user entering NGN. 29g36.2.4.1 General 29g36.2.4.2 NGCN not
26、trusted by NGN . 29g36.2.4.3 NGCN trusted by NGN . 29g36.2.5 Requests terminating to an NGCN user leaving NGN 30g36.2.5.1 General 30g36.2.5.2 NGCN not trusted by NGN . 30g36.2.5.3 NGCN trusted by NGN . 30g36.2.6 Business trunking application . 30g36.2.6.1 General 30g36.2.6.2 Routeing related busines
27、s trunking applications . 31g36.2.6.2.0 General 31g36.2.6.2.1 Originating requests . 31g36.2.6.2.2 Terminating responses to an originating request . 31g36.2.6.2.3 Terminating requests . 31g36.2.6.3 Communication admission control 31g36.2.6.4 Anonymous communication rejection. 32g36.2.6.5 Communicati
28、on barring 32g36.2.7 Signalling transparency . 32g36.2.8 Involvement of functions on the media path . 32g36.2.9 Handling of the P-Access-Network-Info header field. 32g36.2.10 Emergency calls 32g36.2.11 Charging . 33g36.2.12 Advice of Charge 33g36.2.13 NAT traversal . 33g36.2.14 Private network traff
29、ic 33g36.3 Session-level virtual leased line between NGCN sites . 33g36.3.1 Introduction. 33g36.3.2 Identification . 33g36.3.3 Registration . 33g36.3.4 Session originating from a NGCN user entering NGN . 33g36.3.4.1 General 33g3ETSI ETSI TS 124 525 V14.0.0 (2017-04)53GPP TS 24.525 version 14.0.0 Rel
30、ease 146.3.4.2 NGCN not trusted by NGN . 34g36.3.4.3 NGCN trusted by NGN . 34g36.3.5 Session terminating to an NGCN user leaving NGN 34g36.3.5.1 General 34g36.3.5.2 NGCN not trusted by NGN . 34g36.3.5.3 NGCN trusted by NGN . 34g36.3.6 Business trunking applications . 34g36.3.7 Signalling transparenc
31、y . 34g36.3.8 Involvement of functions on the media path . 34g36.3.9 Handing of the P-Access-Network-Info header 34g36.3.10 Emergency calls 34g36.3.11 Charging . 35g36.3.12 Advice of Charge 35g36.3.13 NAT traversal . 35g36.3.14 Private network traffic 35g36.4 NGCN user roaming into NGN public networ
32、k . 35g36.4.1 Introduction. 35g36.4.2 Identification . 35g36.4.3 Registration . 35g36.4.4 Requests originating from an NGCN user roaming in NGN 35g36.4.5 Requests terminating on an NGCN user roaming in NGN . 36g36.4.6 Business trunking applications . 36g36.4.7 Signalling transparency . 36g36.4.8 Inv
33、olvement of functions on the media path . 36g36.4.9 Handing of the P-Access-Network-Info header 36g36.4.10 Emergency calls 36g36.4.11 Charging . 36g36.4.12 Advice of Charge 36g36.4.13 NAT traversal . 36g36.4.14 Private network traffic 36g37 Use of transport functions 37g37.1 Use of transport control
34、 sublayer . 37g37.1.1 Use of NASS. 37g37.1.2 Use of RACS 37g37.1.3 Use of PCC . 37g37.2 Use of transport processing functions 37g38 Security. 37g39 Management . 38g3Annex A (informative): Example signalling flows of business trunking and roaming arrangements 39g3A.1 Scope of signalling flows . 39g3A
35、.2 Introduction 39g3A.3 Signalling flows for registration . 39g3A.3.1 Introduction 39g3A.3.2 Registration of a roaming NGCN UE visiting an NGN/IMS with which the NGCN has a direct roaming agreement . 39g3A.3.2.1 General 39g3A.3.2.2 Signalling flow for registration of a roaming NGCN UE visiting an NG
36、N/IMS with which the NGCN has a direct roaming agreement 40g3A.3.2.3 Overview of routing decisions 45g3A.4 Signalling flows for call origination . 46g3A.5 Signalling flows for call termination 46g3Annex B (informative): Service Level Agreement (SLA) considerations 47g3Annex C (informative): Void . 4
37、8g3ETSI ETSI TS 124 525 V14.0.0 (2017-04)63GPP TS 24.525 version 14.0.0 Release 14Annex D (informative): Change history . 49g3History 50g3ETSI ETSI TS 124 525 V14.0.0 (2017-04)73GPP TS 24.525 version 14.0.0 Release 14Foreword This Technical Specification has been produced by the 3rdGeneration Partne
38、rship Project (3GPP). The contents of the present document are subject to continuing work within the TSG 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 incre
39、ase in version number as follows: Version x.y.z where: x the first digit: 1 presented to TSG for information; 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 enhancement
40、s, corrections, updates, etc. z the third digit is incremented when editorial only changes have been incorporated in the document. ETSI ETSI TS 124 525 V14.0.0 (2017-04)83GPP TS 24.525 version 14.0.0 Release 141 Scope The present document provides architecture and functional requirements for busines
41、s trunking for the Next Generation Network (NGN). The present document also specifies the protocol requirements for the Next Generation Corporate Networks (NGCNs) to attach to the NGN (in particular the IM CN subsystem) and also any protocol requirements relation to application servers provided in s
42、upport of business trunking. Business trunking is a set of NGN capabilities that may be applied to communications between NGCNs using the NGN as a transit. 2 References The following documents contain provisions which, through reference in this text, constitute provisions of the present document. Re
43、ferences are either specific (identified by date of publication, edition number, version number, etc.) or non-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 GS
44、M document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document. 1 3GPP TS 22.519: “Business Communication Requirements“. 2 ETSI ES 282 001 (V3.4.1): “Telecommunications and Internet converged Services and Protocols for Advan
45、ced Networking (TISPAN); NGN Functional Architecture“. 3 ETSI ES 282 004 (V2.0.0): “Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); NGN Functional Architecture; Network Attachment Sub-System (NASS)“. 4 ETSI ES 282 007 (V2.1.1): “Telecommunications a
46、nd Internet converged Services and Protocols for Advanced Networking (TISPAN);IP Multimedia Subsystem (IMS);Functional architecture“. 5 Void. 6 3GPP TS 32.260: “Telecommunication management; Charging management; IP Multimedia Subsystem (IMS) charging“. 7 3GPP TS 24.523: “Core and enterprise NGN inte
47、raction scenarios; Architecture and functional description“. 8 3GPP TS 24.611: “Anonymous Communication Rejection (ACR) and Communication Barring (CB) using IP Multimedia (IM) Core Network (CN) subsystem; Protocol specification“. 9 ETSI TS 183 019 (V.2.3.0): “Telecommunications and Internet converge
48、d Services and Protocols for Advanced Networking (TISPAN); Network Attachment; User-Network Interface Protocol Definitions“. 10 3GPP TS 24.628: “Common Basic Communication procedures using IP Multimedia (IM) Core Network (CN) subsystem; Protocol specification“. 11 ETSI ES 283 035 (V.2.6.2): “Telecom
49、munications and Internet converged Services and Protocols for Advanced Networking (TISPAN); Network Attachment Sub-System (NASS); e2 interface based on the DIAMETER protocol“. 12 3GPP TS 24.647: “Advice Of Charge (AOC) using IP Multimedia (IM) Core Network (CN) subsystem“. ETSI ETSI TS 124 525 V14.0.0 (2017-04)93GPP TS 24.525 version 14.0.0 Release 1413 3GPP TS 29.658: “SIP Transfer of IP Multimedia Service Tariff Information; Protocol specification“. 14 ETSI TS 183 065 (V3.1.1): “Telecommunications and Internet converged Services and Protocols for
