1、 International Telecommunication Union ITU-T Q.3610TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (05/2009) SERIES Q: SWITCHING AND SIGNALLING Signalling requirements and protocols for the NGN Service and session control protocols supplementary services Signalling requirements and protocol profiles
2、 for customized ring-back tone service Recommendation ITU-T Q.3610 ITU-T Q-SERIES RECOMMENDATIONS SWITCHING AND SIGNALLING SIGNALLING IN THE INTERNATIONAL MANUAL SERVICE Q.1Q.3 INTERNATIONAL AUTOMATIC AND SEMI-AUTOMATIC WORKING Q.4Q.59 FUNCTIONS AND INFORMATION FLOWS FOR SERVICES IN THE ISDN Q.60Q.9
3、9 CLAUSES APPLICABLE TO ITU-T STANDARD SYSTEMS Q.100Q.119 SPECIFICATIONS OF SIGNALLING SYSTEMS No. 4, 5, 6, R1 AND R2 Q.120Q.499 DIGITAL EXCHANGES Q.500Q.599 INTERWORKING OF SIGNALLING SYSTEMS Q.600Q.699 SPECIFICATIONS OF SIGNALLING SYSTEM No. 7 Q.700Q.799 Q3 INTERFACE Q.800Q.849 DIGITAL SUBSCRIBER
4、SIGNALLING SYSTEM No. 1 Q.850Q.999 PUBLIC LAND MOBILE NETWORK Q.1000Q.1099 INTERWORKING WITH SATELLITE MOBILE SYSTEMS Q.1100Q.1199 INTELLIGENT NETWORK Q.1200Q.1699 SIGNALLING REQUIREMENTS AND PROTOCOLS FOR IMT-2000 Q.1700Q.1799 SPECIFICATIONS OF SIGNALLING RELATED TO BEARER INDEPENDENT CALL CONTROL
5、(BICC) Q.1900Q.1999 BROADBAND ISDN Q.2000Q.2999 SIGNALLING REQUIREMENTS AND PROTOCOLS FOR THE NGN Q.3000Q.3999 General Q.3000Q.3029 Network signalling and control functional architecture Q.3030Q.3099 Network data organization within the NGN Q.3100Q.3129 Bearer control signalling Q.3130Q.3179 Signall
6、ing and control requirements and protocols to support attachment in NGN environments Q.3200Q.3249 Resource control protocols Q.3300Q.3369 Service and session control protocols Q.3400Q.3499 Service and session control protocols supplementary services Q.3600Q.3649 NGN applications Q.3700Q.3849 Testing
7、 for NGN networks Q.3900Q.3999 For further details, please refer to the list of ITU-T Recommendations. Rec. ITU-T Q.3610 (05/2009) i Recommendation ITU-T Q.3610 Signalling requirements and protocol profiles for customized ring-back tone service Summary Recommendation ITU-T Q.3610 specifies the signa
8、lling requirements and protocol profiles for NGN customized ring-back tone (CRBT) service in support of customized multimedia ringing (CMR). Source Recommendation ITU-T Q.3610 was approved on 7 May 2009 by ITU-T Study Group 11 (2009-2012) under Recommendation ITU-T A.8 procedures. Keywords CRBT, IMS
9、, NGN, SDP, SIP. ii Rec. ITU-T Q.3610 (05/2009) FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications, information and communication technologies (ICTs). The ITU Telecommunication Standardization Sector (ITU-T) is a perma
10、nent organ of ITU. ITU-T is responsible for studying technical, operating and tariff questions and issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Assembly (WTSA), which meets every four years, establis
11、hes the topics for study by the ITU-T study groups which, in turn, produce Recommendations on these topics. The approval of ITU-T Recommendations is covered by the procedure laid down in WTSA Resolution 1. In some areas of information technology which fall within ITU-Ts purview, the necessary standa
12、rds are prepared on a collaborative basis with ISO and IEC. NOTE In this Recommendation, the expression “Administration“ is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. Compliance with this Recommendation is voluntary. However, the Recom
13、mendation may contain certain mandatory provisions (to ensure e.g., interoperability or applicability) and compliance with the Recommendation is achieved when all of these mandatory provisions are met. The words “shall“ or some other obligatory language such as “must“ and the negative equivalents ar
14、e used to express requirements. The use of such words does not suggest that compliance with the Recommendation is required of any party. INTELLECTUAL PROPERTY RIGHTS ITU draws attention to the possibility that the practice or implementation of this Recommendation may involve the use of a claimed Int
15、ellectual Property Right. ITU takes no position concerning the evidence, validity or applicability of claimed Intellectual Property Rights, whether asserted by ITU members or others outside of the Recommendation development process. As of the date of approval of this Recommendation, ITU had not rece
16、ived notice of intellectual property, protected by patents, which may be required to implement this Recommendation. However, implementers are cautioned that this may not represent the latest information and are therefore strongly urged to consult the TSB patent database at http:/www.itu.int/ITU-T/ip
17、r/. ITU 2010 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior written permission of ITU. Rec. ITU-T Q.3610 (05/2009) iii CONTENTS Page 1 Scope 1 2 References. 1 3 Definitions 2 3.1 Terms defined elsewhere 2 3.2 Terms defined in this Recom
18、mendation. 2 4 Abbreviations and acronyms 2 5 CRBT service and architecture. 4 5.1 General description. 4 5.2 General architecture 4 5.3 Possible CRBT service architectures 5 6 Service models 7 7 Media formats. 7 7.1 Audio 7 7.2 Video 7 7.3 Text. 7 7.4 Still image. 7 8 Signalling requirements 7 8.1
19、Requirements for the originating UE . 8 8.2 Requirements for the originating P-CSC-FE 8 8.3 Requirements for the I-CSC-FE . 9 8.4 Requirements for the S-CSC-FE 9 8.5 Requirements for the IBC-FE. 9 8.6 Requirements for the AMG-FE 9 8.7 Requirements for the call server. 9 8.8 Requirements for the AS-F
20、E 9 8.9 Requirements for the MRC-FE 11 8.10 Requirements for the terminating P-CSC-FE. 11 8.11 Requirements for the terminating UE. 11 9 Protocol profiles 11 9.1 IMS-based CRBT service. 12 9.2 Call server-based CRBT service 14 10 Interactions between networks . 15 10.1 Providing circuit-switched net
21、work CRBT to the originating UE in the IMS domain 15 10.2 Providing IMS CRBT to the originating UE in circuit switched network . 16 11 Interactions with other services on NGN 17 11.1 Originating identification presentation (OIP). 17 11.2 Originating identification restriction (OIR) 17 iv Rec. ITU-T
22、Q.3610 (05/2009) Page 11.3 Terminating identification presentation (TIP) 17 11.4 Terminating identification restriction (TIR). 17 11.5 Communication HOLD (HOLD) . 17 11.6 Communication DIVersion (CDIV) services . 17 11.7 Explicit communication transfer (ECT) service. 18 11.8 Originating CRBT service
23、 interacting with terminating CRBT service 18 11.9 Terminating early media services to calling party other than CRBT. 18 12 Security considerations. 19 Annex A Multi-dialog model 20 A.1 General description. 20 A.2 Signalling requirements 20 Appendix I Signalling flows . 21 I.1 IMS-based CRBT service
24、 by gateway model with PRACK and UPDATE (Originating IMS-UE case) 21 I.2 IMS-based CRBT service by gateway model with re-INVITE (Originating IMS-UE case) 25 I.3 CRBT service by application server model 31 I.4 CRBT service by HTTP model (Originating IMS-UE case) 35 I.5 CRBT service by gateway model (
25、Originating PSTN/ISDN interworking case) 37 I.6 CRBT service by gateway model (Originating POTS-UE case) 40 I.7 Call server-based CRBT service by gateway model (Originating IMS-UE case) 42 I.8 Originating CRBT service interacts with terminating CRBT service by AS model 45 I.9 Providing circuit switc
26、hed network CRBT to the originating UE in IMS domain 52 I.10 Providing IMS CRBT to the originating UE in circuit switched network domain 58 Bibliography 63 Rec. ITU-T Q.3610 (05/2009) 1 Recommendation ITU-T Q.3610 Signalling requirements and protocol profiles for customized ring-back tone service 1
27、Scope This Recommendation specifies signalling requirements and protocol profiles of customized ring-back tone (CRBT) service in support of customized multimedia ringing (CMR). This Recommendation also contains signalling flows. The CRBT service is defined in next generation networks (NGNs) includin
28、g IP multimedia subsystems (IMS) and call-server based networks. This Recommendation covers the protocol profiles over the user-network interface (UNI) and network-to-network interface (NNI) based on ITU-T Q.3402 and ITU-T Q.3401, respectively. In addition, it also covers ITU-T H.248.1 based protoco
29、l profile for the interface between the access media gateway functional entity (AMG-FE) and the service control functions. More detailed protocol profiles for other interfaces may be subject to future specifications. 2 References The following ITU-T Recommendations and other references contain provi
30、sions which, through reference in this text, constitute provisions of this Recommendation. At the time of publication, the editions indicated were valid. All Recommendations and other references are subject to revision; users of this Recommendation are therefore encouraged to investigate the possibi
31、lity of applying the most recent edition of the Recommendations and other references listed below. A list of the currently valid ITU-T Recommendations is regularly published. The reference to a document within this Recommendation does not give it, as a stand-alone document, the status of a Recommend
32、ation. ITU-T H.248.1 Recommendation ITU-T H.248.1 (2005), Gateway control protocol: Version 3. ITU-T Q.3401 Recommendation ITU-T Q.3401 (2007), NGN NNI signalling profile (Protocol Set 1); Amendment 1 (2008). ITU-T Q.3402 Recommendation ITU-T Q.3402 (2008), NGN UNI signalling profile (Protocol Set 1
33、). ITU-T T.81 Recommendation ITU-T T.81 (1992) | ISO/IEC 10918-1:1994, Information technology Digital compression and coding of continuous-tone still images: Requirements and guidelines. ITU-T Y.2012 Recommendation ITU-T Y.2012 (2006), Functional requirements and architecture of the NGN release 1. I
34、TU-T Y.2701 Recommendation ITU-T Y.2701 (2007), Security requirements for NGN release 1. IETF RFC 2616 IETF RFC 2616 (1999), Hypertext Transfer Protocol HTTP/1.1. IETF RFC 3261 IETF RFC 3261 (2002), SIP: Session Initiation Protocol. IETF RFC 3262 IETF RFC 3262 (2002), Reliability of Provisional Resp
35、onses in the Session Initiation Protocol (SIP). IETF RFC 3311 IETF RFC 3311 (2002), The Session Initiation Protocol (SIP) UPDATE Method. 2 Rec. ITU-T Q.3610 (05/2009) IETF RFC 3372 IETF RFC 3372 (2002), Session Initiation Protocol for Telephones (SIP-T): Context and Architectures. IETF RFC 3959 IETF
36、 RFC 3959 (2004), The Early Session Disposition Type for the Session Initiation Protocol (SIP). IETF RFC 3960 IETF RFC 3960 (2004), Early Media and Ringing Tone Generation in the Session Initiation Protocol (SIP). IETF RFC 4566 IETF RFC 4566 (2006), SDP: Session Description Protocol. IETF RFC 5009 I
37、ETF RFC 5009 (2007), Private Header (P-Header) Extension to the Session Initiation Protocol (SIP) for Authorization of Early Media. 3 Definitions 3.1 Terms defined elsewhere This Recommendation uses the following term defined elsewhere: 3.1.1 early media IETF RFC 3959: The media (e.g., audio and vid
38、eo) that is exchanged before a particular session is accepted by the called user. 3.2 Terms defined in this Recommendation This Recommendation defines the following terms: 3.2.1 calling CRBT service subscriber: The calling party who subscribes to the CRBT service. 3.2.2 called CRBT service subscribe
39、r: The called party who subscribes to the called party configured CRBT service. 3.2.3 CRBT service user: The calling party who experiences the CRBT service. 3.2.4 early media for CRBT: The early media that is delivered to the calling party with the media contents configured by the service subscriber
40、. It can be generated by the originating network or the terminating network, depending on the location of service subscriptions. 3.2.5 icon ring tone server (IRT server): Icon ring tone (IRT) server stores the ringing tone media such as audio, video and picture files. The IRT server behaves as a web
41、 server and can be provided by content providers or operators. A user terminal can interact with the IRT server via, for example, HTTP to download the ringing tone media. 4 Abbreviations and acronyms This Recommendation uses the following abbreviations and acronyms: ACM Address Complete Message AGC-
42、FE Access Gateway Control Functional Entity AMG-FE Access Media Gateway Functional Entity ANM Answer Message AS Application Server AS-FE Application Support Functional Entity AVP Audio Video Profile B2BUA Back-to-Back User Agent BGC-FE Breakout Gateway Control Functional Entity Rec. ITU-T Q.3610 (05
43、/2009) 3 CDIV Communication DIVersion CFNR Call Forwarding on No Reply CRBT Customized Ring-Back Tone CRBT-O Customized Ring-Back Tone by Originating network CRBT-T Customized Ring-Back Tone by Terminating network CSN Circuit Switched Network ECT Explicit Communication Transfer EUF End-User Function
44、s GSM Global System for Mobile communications HOLD Communication HOLD HTTP HyperText Transfer Protocol IAM Initial Address Message IBC-FE Interconnection Border Gateway Control Functional Entity I-CSC-FE Interrogating Call Session Control Functional Entity IMS IP Multimedia Subsystem IRT Icon Ring T
45、one ISDN Integrated Services Digital Network ISUP ISDN User Part MGCF Media Gateway Control Function MGC-FE Media Gateway Control Functional Entity MRC-FE Media Resource Control Functional Entity MRFC Media Resource Function Controller MRP-FE Media Resource Processing Functional Entity MSC Mobile Sw
46、itching Centre NGN Next Generation Network NNI Network-to-Network Interface OIP Originating Identification Presentation OIR Originating Identification Restriction P-CSC-FE Proxy Call Session Control Functional Entity POTS Plain Old Telephone Service PSTN Public Switched Telephone Network RTCP RTP Co
47、ntrol Protocol RTP Real-Time Transport Protocol SCF Service Control Functions S-CSC-FE Serving Call Session Control Functional Entity SDP Session Description Protocol SG-FE Signalling Gateway Functional Entity 4 Rec. ITU-T Q.3610 (05/2009) SIP Session Initiation Protocol SIP UA SIP User Agent SUP-FE
48、 Service User Profile Functional Entity TIP Terminating Identification Presentation TIR Terminating Identification Restriction TMG-FE Trunk Media Gateway Functional Entity UAC User Agent Client UAS User Agent Server UDP User Datagram Protocol UE User Equipment UE-A User Equipment for user A UE-B Use
49、r Equipment for user B UNI User-to-Network Interface URL Uniform Resource Locator UUI User-to-User Information 5 CRBT service and architecture 5.1 General description Customized ring-back tone (CRBT) service provides the calling party with the called/calling partys customized ring-back tone. The service is based on subscription and can be subscribed by the called party or the calling party. The service is invoked to provide customized ring-back tone to
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