1、 International Telecommunication Union ITU-T Q.3401TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (03/2007) SERIES Q: SWITCHING AND SIGNALLING Signalling requirements and protocols for the NGN Service and session control protocols NGN NNI signalling profile (protocol set 1) ITU-T Recommendation Q.3
2、401 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.99 CLAUSES APPLICABLE TO ITU-T STANDARD SYSTEMS Q.100Q.119 SPECI
3、FICATIONS 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 SIGNALLING SYSTEM No. 1 Q.850Q.999 PUBLIC LAND MOBILE NETWORK Q
4、.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 (BICC) Q.1900Q.1999 BROADBAND ISDN Q.2000Q.2999 SIGNALLING REQU
5、IREMENTS 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 Signalling and control requirements and protocols to support attachmen
6、t 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 for NGN networks Q.3900Q.3999 For further details, please refe
7、r to the list of ITU-T Recommendations. ITU-T Rec. Q.3401 (03/2007) i ITU-T Recommendation Q.3401 NGN NNI signalling profile (protocol set 1) Summary ITU-T Recommendation Q.3401 defines the IP network-to-network interface (NNI) signalling profile for use between NGN carriers of protocol set 1 for vo
8、iceband services. Source ITU-T Recommendation Q.3401 was approved on 9 March 2007 by ITU-T Study Group 11 (2005-2008) under the ITU-T Recommendation A.8 procedure. Keywords NGN, profile, SDP, SIP, signalling. ii ITU-T Rec. Q.3401 (03/2007) FOREWORD The International Telecommunication Union (ITU) is
9、the United Nations specialized agency in the field of telecommunications. The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for studying technical, operating and tariff questions and issuing Recommendations on them with a view to standardizing
10、 telecommunications on a worldwide basis. The World Telecommunication Standardization Assembly (WTSA), which meets every four years, establishes 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
11、 the procedure laid down in WTSA Resolution 1. In some areas of information technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis with ISO and IEC. NOTE In this Recommendation, the expression “Administration“ is used for conciseness to indicate bo
12、th a telecommunication administration and a recognized operating agency. Compliance with this Recommendation is voluntary. However, the Recommendation may contain certain mandatory provisions (to ensure e.g. interoperability or applicability) and compliance with the Recommendation is achieved when a
13、ll of these mandatory provisions are met. The words “shall“ or some other obligatory language such as “must“ and the negative equivalents are used to express requirements. The use of such words does not suggest that compliance with the Recommendation is required of any party. INTELLECTUAL PROPERTY R
14、IGHTS ITU draws attention to the possibility that the practice or implementation of this Recommendation may involve the use of a claimed Intellectual Property Right. ITU takes no position concerning the evidence, validity or applicability of claimed Intellectual Property Rights, whether asserted by
15、ITU members or others outside of the Recommendation development process. As of the date of approval of this Recommendation, ITU had not received notice of intellectual property, protected by patents, which may be required to implement this Recommendation. However, implementers are cautioned that thi
16、s may not represent the latest information and are therefore strongly urged to consult the TSB patent database at http:/www.itu.int/ITU-T/ipr/. ITU 2007 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior written permission of ITU. ITU-T Rec
17、. Q.3401 (03/2007) iii CONTENTS Page 1 Scope 1 2 References. 1 2.1 ITU-T references 1 2.2 IETF references 2 2.3 ETSI references 4 2.4 Other references 4 3 Definitions 4 4 Abbreviations and acronyms 5 5 Reference model . 6 6 Assumptions . 7 7 Media availability in a SIP session. 8 8 Codec 8 8.1 Codec
18、 list 8 8.2 Packetization size . 9 9 Routing and addressing. 9 10 Service level signalling profile . 10 10.1 RFCs to be supported . 10 10.2 SIP profile. 11 10.3 SDP profile . 25 11 Transport-level profile 26 12 Call control signalling transport . 27 13 IP protocol version 27 14 Security consideratio
19、ns. 27 Appendix I Call/signalling flows 28 A.1 PSTNIP(NNI)IPPSTN 29 A.2 PSTNIP(NNI)IPIP 31 A.3 IPIP(NNI)IPPSTN 33 A.4 IPIP(NNI)IPIP 34 Bibliography. 36 ITU-T Rec. Q.3401 (03/2007) 1 ITU-T Recommendation Q.3401 NGN NNI signalling profile (protocol set 1) 1 Scope This Recommendation contains a service
20、-level profile, i.e., SIP/SDP interface description, between two network operators (NNI signalling profile), where the two different network operators may support different SIP/SDP profiles (i.e., they differ in terms of the SIP extensions, SIP information elements and SDP lines which are supported)
21、. Transport-level profile, e.g., RTP, is described as necessary as the media are described in the service-level signalling. NOTE 1 Specification of the interworking between the SIP/SDP profile contained in this Recommendation and the SIP/SDP profiles in each operators network (i.e., the functions co
22、ntained inside the interworking entity/entities at the network boundary) is out of scope of this Recommendation. For the protocol set 1 of the NGN NNI signalling profile, this Recommendation covers the voiceband services such as VoIP (audio, text and so on), DTMF and T.38 fax. NOTE 2 Support for a m
23、obility management interface is not supported in this version of this interface. However, nomadicity of users between different networks is supported. 2 References The following ITU-T Recommendations and other references contain provisions which, through reference in this text, constitute provisions
24、 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 possibility of applying the most recent edition of the Recommendations an
25、d 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 Recommendation. 2.1 ITU-T references ITU-T G.711 ITU-T Recommendation G.711
26、 (1988), Pulse code modulation (PCM) of voice frequencies. ITU-T G.722 ITU-T Recommendation G.722 (1988), 7 kHz audio-coding within 64 kbit/s. ITU-T G.722.1 ITU-T Recommendation G.722.1 (2005), Low-complexity coding at 24 and 32 kbit/s for hands-free operation in systems with low frame loss. ITU-T G
27、.722.2 ITU-T Recommendation G.722.2 (2003), Wideband coding of speech at around 16 kbit/s using Adaptive Multi-Rate Wideband (AMR-WB). ITU-T G.726 ITU-T Recommendation G.726 (1990), 40, 32, 24, 16 kbit/s Adaptive Differential Pulse Code Modulation (ADPCM). ITU-T G.729 ITU-T Recommendation G.729 (199
28、6), Coding of speech at 8 kbit/s using conjugate-structure algebraic-code-excited linear prediction (CS-ACELP). ITU-T G.729A ITU-T Recommendation G.729 Annex A (1996), Reduced complexity 8 kbit/s CS-ACELP speech codec. ITU-T G.729.1 ITU-T Recommendation G.729.1 (2006), G.729-based embedded variable
29、bit-rate coder: An 8-32 kbit/s scalable wideband coder bitstream interoperable with G.729. ITU-T Q.761 ITU-T Recommendation Q.761 (1999), Signalling System No. 7 ISDN User Part functional description. 2 ITU-T Rec. Q.3401 (03/2007) ITU-T Q.762 ITU-T Recommendation Q.762 (1999), Signalling System No.
30、7 ISDN User Part general functions of messages and signals. ITU-T Q.763 ITU-T Recommendation Q.763 (1999), Signalling System No. 7 ISDN User Part formats and codes. ITU-T Q.764 ITU-T Recommendation Q.764 (1999), Signalling System No. 7 ISDN User Part signalling procedures. ITU-T Q.1912.5 ITU-T Recom
31、mendation Q.1912.5 (2004), Interworking between Session Initiation Protocol (SIP) and Bearer Independent Call Control protocol or ISDN User Part. ITU-T T.38 ITU-T Recommendation T.38 (2005), Procedures for real-time Group 3 facsimile communication over IP networks. ITU-T T.140 ITU-T Recommendation T
32、.140 (1998), Protocol for multimedia application text conversation. ITU-T Y.2012 ITU-T Recommendation Y.2012 (2006), Functional requirements and architecture of the NGN release 1. 2.2 IETF references 2.2.1 Service-level signalling specifications RFC 2046 IETF RFC 2046 (1996), Multipurpose Internet M
33、ail Extensions (MIME) Part Two: Media Types. RFC 2327 IETF RFC 2327 (1998), SDP: Session Description Protocol. RFC 2976 IETF RFC 2976 (2000), The SIP INFO Method. RFC 3087 IETF RFC 3087 (2001), Control of Service Context using SIP Request-URI. RFC 3204 IETF RFC 3204 (2001), MIME media types for ISUP
34、 and QSIG Objects. RFC 3261 IETF RFC 3261 (2002), SIP: Session Initiation Protocol. RFC 3262 IETF RFC 3262 (2002), Reliability of Provisional Responses in the Session Initiation Protocol (SIP). RFC 3264 IETF RFC 3264 (2002), An Offer/Answer Model with the Session Description Protocol (SDP). RFC 3265
35、 IETF RFC 3265 (2002), Session Initiation Protocol (SIP)-Specific Event Notification. RFC 3311 IETF RFC 3311 (2002), The Session Initiation Protocol (SIP) UPDATE Method. RFC 3312 IETF RFC 3312 (2002), Integration of Resource Management and Session Initiation Protocol (SIP). RFC 3323 IETF RFC 3323 (2
36、002), A Privacy Mechanism for the Session Initiation Protocol (SIP). RFC 3324 IETF RFC 3324 (2002), Short Term Requirements for Network Asserted Identity. RFC 3325 IETF RFC 3325 (2002), Private Extensions to the Session Initiation Protocol (SIP) for Asserted Identity within Trusted Networks. RFC 332
37、6 IETF RFC 3326 (2002), The Reason Header Field for the Session Initiation Protocol (SIP). ITU-T Rec. Q.3401 (03/2007) 3 RFC 3398 IETF RFC 3398 (2002), Integrated Services Digital Network (ISDN) User Part (ISUP) to Session Initiation Protocol (SIP) Mapping. RFC 3420 IETF RFC 3420 (2002), Internet Me
38、dia Type message/sipfrag. RFC 3428 IETF RFC 3428 (2002), Session Initiation Protocol (SIP) Extension for Instant Messaging. RFC 3455 IETF RFC 3455 (2003), Private Header (P-Header) Extensions to the Session Initiation Protocol (SIP) for the 3rd-Generation Partnership Project (3GPP). RFC 3515 IETF RF
39、C 3515 (2003), The Session Initiation Protocol (SIP) Refer Method. RFC 3824 IETF RFC 3824 (2004), Using E.164 numbers with the Session Initiation Protocol (SIP). RFC 3840 IETF RFC 3840 (2004), Indicating User Agent Capabilities in the Session Initiation Protocol (SIP). RFC 3841 IETF RFC 3841 (2004),
40、 Caller Preferences for the Session Initiation Protocol (SIP). RFC 3891 IETF RFC 3891 (2004), The Session Initiation Protocol (SIP) Replaces Header. RFC 3892 IETF RFC 3892 (2004), The Session Initiation Protocol (SIP) Referred-By Mechanism. RFC 3893 IETF RFC 3893 (2004), Session Initiation Protocol
41、(SIP) Authenticated Identity Body (AIB) Format. RFC 3911 IETF RFC 3911 (2004), The Session Initiation Protocol (SIP) Join Header. RFC 3959 IETF RFC 3959 (2004), The Early Session Disposition Type for the Session Initiation Protocol (SIP). RFC 3960 IETF RFC 3960 (2004), Early Media and Ringing Tone G
42、eneration in the Session Initiation Protocol (SIP). RFC 3966 IETF RFC 3966 (2004), The tel URI for Telephone Numbers. RFC 4028 IETF RFC 4028 (2005), Session Timers in the Session Initiation Protocol (SIP). RFC 4032 IETF RFC 4032 (2005), Update to the Session Initiation Protocol (SIP) Preconditions F
43、ramework. RFC 4235 IETF RFC 4235 (2005), An INVITE-Initiated Dialog Event Package for the Session Initiation Protocol (SIP). RFC 4244 IETF RFC 4244 (2005), An Extension to the Session Initiation Protocol (SIP) for Request History Information. RFC 4412 IETF RFC 4412 (2006), Communications Resource Pr
44、iority for the Session Initiation Protocol (SIP). RFC 4458 IETF RFC 4458 (2006), Session Initiation Protocol (SIP) URIs for Applications such as Voicemail and Interactive Voice Response (IVR). RFC 4483 IETF RFC 4483 (2006), A Mechanism for Content Indirection in Session Initiation Protocol (SIP) Mes
45、sages. RFC 4566 IETF RFC 4566 (2006), SDP: Session Description Protocol. RFC 4694 IETF RFC 4694 (2006), Number Portability Parameters for the tel URI. 4 ITU-T Rec. Q.3401 (03/2007) 2.2.2 Transport-level specifications RFC 2833 IETF RFC 2833 (2000), RTP Payload for DTMF Digits, Telephony Tones and Te
46、lephony Signals. RFC 3267 IETF RFC 3267 (2002), Real-Time Transport Protocol (RTP) Payload Format and File Storage Format for the Adaptive Multi-Rate (AMR) and Adaptive Multi-Rate Wideband (AMR-WB) Audio Codecs. RFC 3389 IETF RFC 3389 (2002), Real-time Transport Protocol (RTP) Payload for Comfort No
47、ise. RFC 3550 IETF RFC 3550 (2003), RTP: A Transport Protocol for Real-Time Applications. RFC 3551 IETF RFC 3551 (2003), RTP Profile for Audio and Video Conferences with Minimal Control. RFC 4103 IETF RFC 4103 (2005), RTP Payload for Text Conversation. 2.3 ETSI references EN 301 703 ETSI EN 301 703
48、V7.0.2 (1999), Digital cellular telecommunications system (Phase 2+) (GSM); Adaptive Multi-Rate (AMR); Speech processing functions; General description (GSM 06.71 version 7.0.2 Release 1998). 2.4 Other references TIA-127-A TIA-127-A (2004), Enhanced Variable Rate Codec Speech Service Option 3 for Wi
49、deband Spread Spectrum Digital Systems. TIA-1016 TIA-1016-A (2006), Source-Controlled Variable-Rate Multimode Wideband Speech Codec (VMR-WB), Service Options 62 and 63 for Spread Spectrum Systems. 3 Definitions For SIP- and SDP-specific terminology, reference shall be made to RFC 3261, RFC 3264 and RFC 2327. For NGN-specific terminology, reference shall be made to ITU-T Y.2012. Definitions for
