1、 International Telecommunication Union ITU-T J.460.0TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (06/2008) SERIES J: CABLE NETWORKS AND TRANSMISSION OF TELEVISION, SOUND PROGRAMME AND OTHER MULTIMEDIA SIGNALS IPCablecom2 residential SIP telephony: Feature definition Recommendation ITU-T J.460.0 R
2、ec. ITU-T J.460.0 (06/2008) i Recommendation ITU-T J.460.0 IPCablecom2 residential SIP telephony: Feature definition Summary Recommendation ITU-T J.460.0 describes the IPCablecom2 residential SIP telephony feature definitions and underlying assumptions. The IPCablecom2 residential SIP telephony feat
3、ures include many of the features commonly available to residential subscribers of public switched telephone network services. Examples include caller ID, call waiting, speed dialing, and emergency calling capabilities. This Recommendation also describes the expectations for the devices that can be
4、used for IPCablecom2 residential SIP telephony. Source Recommendation ITU-T J.460.0 was approved on 13 June 2008 by ITU-T Study Group 9 (2005-2008) under Recommendation ITU-T A.8 procedure. ii Rec. ITU-T J.460.0 (06/2008) FOREWORD The International Telecommunication Union (ITU) is the United Nations
5、 specialized agency in the field of telecommunications, information and communication technologies (ICTs). 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
6、them with a view to standardizing 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 IT
7、U-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 standards are prepared on a collaborative basis with ISO and IEC. NOTE In this Recommendation, the expression “Administration“ is us
8、ed for conciseness to indicate both 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
9、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 are used to express requirements. The use of such words does not suggest that compliance with the Recommendation is required of a
10、ny 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 Intellectual Property Right. ITU takes no position concerning the evidence, validity or applicability of claimed Intellectual Prop
11、erty 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 received notice of intellectual property, protected by patents, which may be required to implement this Recommendation. However, im
12、plementers 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/ipr/. ITU 2009 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior wri
13、tten permission of ITU. Rec. ITU-T J.460.0 (06/2008) iii CONTENTS Page 1 Scope 1 2 References. 1 2.1 Informative References 1 2.2 Reference Acquisition 2 3 Terms and definitions . 2 4 Abbreviations and acronyms 3 5 IPCablecom2 Residential SIP Telephony Scope 4 5.1 Overview 5 5.2 Residential SIP Tele
14、phony Feature Groupings 6 6 IPCablecom2 Residential SIP Telephony Feature Definitions. 6 6.1 Basic Calling Capabilities 7 Appendix I Requirements for Region A (Primarily Europe) 12 Appendix II Requirements for Region B (Primarily North America) 13 II.1 Scope 13 II.2 References 13 II.3 Terms and defi
15、nitions. 15 II.4 Abbreviations and acronyms 15 II.5 IPCablecom2 Residential SIP Telephony Scope 15 II.6 IPCablecom2 Residential SIP Telephony Feature Definitions 15 Appendix III Region C of Residential SIP Telephony Feature Definition. 40 III.1 Scope 40 III.2 References 40 III.3 Terms and definition
16、s. 41 III.4 Abbreviations and acronyms 41 III.5 IPCablecom2 Residential SIP Telephony Scope 41 III.6 IPCablecom2 Residential SIP Telephony Feature Definitions 41 Appendix IV User Interface Tones and Signals 42 Appendix V Vertical Service Codes . 46 Rec. ITU-T J.460.0 (06/2008) 1 Recommendation ITU-T
17、 J.460.0 IPCablecom2 residential SIP telephony: Feature definition 1 Scope The IPCablecom2 residential SIP telephony effort is intended to replicate many of the residential features currently available on the public switched telephone network (PSTN), except that the features operate using an IPCable
18、com2-based IP (Internet Protocol) network using session initiation protocol for voice over IP (SIP VoIP) sessions. The IPCablecom2 residential SIP telephony features described in this Recommendation are intended to form the basis for specification requirements that define the behaviour of SIP client
19、s that interact with the IPCablecom2 network and the corresponding network behaviour. This Recommendation describes the behaviour of residential telephony features using a standard RST Client (called RST User Equipment, or RST UE, or simply UE in this Recommendation) connected to the IPCablecom2 net
20、work. Prior IPCablecom efforts have defined residential telephony capabilities that operate on an IPCablecom IP network. IPCablecom defined an MGCP-based (Media Gateway Control Protocol) architecture in which a centralized call management server (CMS) controls the telephony services provided by mult
21、imedia terminal adapters (MTAs). The IPCablecom2 residential SIP telephony specification defines how UEs can support residential telephony capabilities similar to that of IPCablecom. This allows for the deployment of new types of clients and services while maintaining continuity with existing reside
22、ntial telephony services. This Recommendation is the overview document describing basic telephony features to be supported in SIP. The Recommendations that specify the implementation of these features are given below. J.460.1 IPCablecom2 residential SIP telephony feature specification J.460.2 IPCabl
23、ecom2 residential SIP telephony E-DVA specification J.460.3 IPCablecom2 residential SIP telephony accounting specification J.460.4 IPCablecom2 residential SIP telephony E-UE provisioning specification. It is an important objective of this work that interoperability between IPCablecom 2.0 and 3GPP IM
24、S is provided. IPCablecom 2.0 is based upon 3GPP IMS, but includes additional functionality necessary to meet the requirements of cable operators. Recognizing developing converged solutions for wireless, wireline, and cable, it is expected that further development of IPCablecom 2.0 will continue to
25、monitor and contribute to IMS developments in 3GPP, with the aim of alignment of 3GPP IMS and IPCablecom 2.0. NOTE The structure and content of this Recommendation have been organized for ease of use by those familiar with the original source material; as such, the usual style of ITU-T recommendatio
26、ns has not been applied. 2 References 2.1 Informative References AIP1.5 Recommendation ITU-T J.173 (2005), IPCablecom embedded MTA primary line support. ARCH-FRM TR Recommendation ITU-T J.360 (2006), IPCablecom2 architecture framework. 2 Rec. ITU-T J.460.0 (06/2008) CMSS1.5 Recommendation ITU-T J.17
27、8 (2005), IPCablecom CMS to CMS signalling. CODEC1.5 Recommendation ITU-T J.161 (2007), Audio and video codec requirements and usage for the provision of bidirectional audio services over cable television networks using cable modems. CODEC-MEDIA Recommendation ITU-T J.361 (2006), IPCablecom2 Codec a
28、nd Media. ITU-T T.38 Recommendation ITU-T T.38 (2005), Procedures for real-time Group 3 facsimile communication over IP networks. ITU-T V.152 Recommendation ITU-T V.152 (2005), Procedures for supporting voice-band data over IP networks. ITU-T T.30 Recommendation ITU-T T.30 (2005), Procedures for doc
29、ument facsimile transmission in the general switched telephone network. ITU-T V.18 Recommendation ITU-T V.18 (2000), Operational and interworking requirements for DCEs operating in the text telephone mode. ITU-T V.21 Recommendation ITU-T V.21 (1988), 300 bits per second duplex modem standardized for
30、 use in the general switched telephone network. ITU-T V.25 Recommendation ITU-T V.25 (1996), Automatic answering equipment and general procedures for automatic calling equipment on the general switched telephone network including procedures for disabling of echo control devices for both manually and
31、 automatically established calls. ITU-T V.8 Recommendation ITU-T V.8 (2000), Procedures for starting sessions of data transmission over the public switched telephone network. NCS1.5 Recommendation ITU-T J.162 (2005), Network call signalling protocol for the delivery of time-critical services over ca
32、ble television networks using cable modems. OB 781 Operational Bulletin No. 781 (1.II.2003) and Annexed List: Various tones used in national networks (According to ITU-T Recommendation E.180) (03/1998) (Position on 1 February 2003). RFC 2833 IETF RFC 2833 (2000), RTP Payload for DTMF Digits, Telepho
33、ny Tones and Telephony Signals. RFC 3261 IETF RFC 3261 (2002), SIP: Session Initiation Protocol. 2.2 Reference Acquisition Internet Engineering Task Force (IETF) Secretariat c/o Corporation for National Research Initiatives, 1895 Preston White Drive, Suite 100, Reston, VA 20191-5434, Phone 703-620-8
34、990, Fax 703-620-9071, Internet: http:/www.ietf.org/ 3 Terms and definitions This Recommendation uses the following terms and definitions: 3.1 jitter: Variability in the delay of a stream of incoming packets making up a flow such as a voice communication. 3.2 latency: The time taken for a signal ele
35、ment to pass through a device or circuit. 3.3 media gateway: Devices bridging between the IPCablecom IP Voice Communication network and the PSTN. A Media Gateway provides the bearer circuit interfaces to the PSTN and transcodes the media stream. Rec. ITU-T J.460.0 (06/2008) 3 3.4 off hook: The activ
36、e state of a traditional telephone, while a call is in progress or being attempted, and the telephone handset is out of its cradle. 3.5 on hook: The idle state of a traditional telephone, while no call is in progress and the telephone handset is sitting in its cradle. 3.6 SIP client: The functional
37、element used by subscribers to attach to the IPCablecom2 network. 3.7 trunk: An analog or digital connection from a circuit switch that carries user media content and may carry voice signaling (MF, R2, etc.). 4 Abbreviations and acronyms This Recommendation uses the following abbreviations and acron
38、yms: 3WC Three Way Calling AC Auto Callback or Alternating Current ACR Anonymous Call Rejection AR Auto Recall AS Application Server BCT Blind Call Transfer BLV Busy Line Verification CCT Consultative Call Transfer CFBL Call Forwarding Busy Line CFDA Call Forwarding Dont Answer CFV Call Forwarding V
39、ariable CID Caller Identity Delivery CIDB Caller Identity Delivery Blocking CIDS Caller Identity Delivery Suppression CNAM Calling Name CND Calling Number Delivery COT Customer Originated Trace CPE Customer Premises Equipment CSCF Call Session Control Function CT Call Transfer DC Direct Current DN D
40、irectory Number DND Do Not Disturb DTMF Dual Tone Multi Frequency DVA Digital Voice Adapter E-DVA Embedded Digital Voice Adapter EI Emergency Interrupt 4 Rec. ITU-T J.460.0 (06/2008) E-MTA Embedded Multimedia Terminal Adapter FSK Frequency Shift Key IMS IP Multimedia Subsystem IP Internet Protocol L
41、CD Liquid Crystal Display MGC Media Gateway Controller MTA Multimedia Terminal Adapter NAT Network Address Translation NCS Network Call Signaling PSTN Public Switched Telephone Network QoS Quality of Service RACF Remote Activation of Call Forwarding ROH Receiver-Off-Hook RST Residential SIP Telephon
42、y RTP Real-time Transport Protocol SCA Selective Call Acceptance SCF Selective Call Forwarding SCR Selective Call Rejection SIP Session Initiation Protocol SLE Screening List Editing SPP Subscriber Programmable PIN TDD Telecommunications Device for the Deaf UE User Equipment URI Uniform Resource Ide
43、ntifier URL Uniform Resource Locator VMWI Visual Message Waiting Indicator VoIP Voice over Internet Protocol 5 IPCablecom2 Residential SIP Telephony Scope The IPCablecom2 Residential SIP Telephony Feature Definition describes a grouping of telephony call features and capabilities that approximate th
44、e services available to most PSTN residential voice subscribers. The IPCablecom2 Residential SIP Telephony is an application built upon the IPCablecom2 architecture described in ARCH-FRM TR. The IPCablecom2 architecture framework Recommendation and related specifications specify the system component
45、s, the various functional groupings and the network interfaces necessary for delivery of services via an IPCablecom2 network. The architecture (which is based on IMS) leverages the use of triggers within the core network to determine when application level processing is required. Rec. ITU-T J.460.0
46、(06/2008) 5 Common groupings of features have been proposed in this Recommendation so that implementers can easily refer to groups of related features and capabilities when describing their implementations. This clause provides: An overview of the IPCablecom2 Residential SIP Telephony feature capabi
47、lities. A description of the main feature groupings. 5.1 Overview This Recommendation defines the IPCablecom2 Residential SIP Telephony features from a users point of view, without delving into many of the details of the network elements in the IPCablecom2 network. Figure 1 illustrates the context f
48、or this Recommendation, and the interfaces that are within scope for this Recommendation. Figure 1 IPCablecom2 Residential SIP Telephony Feature Definition Context This Recommendation defines requirements for the Residential SIP Telephony capability set as they impact the following elements: UE: the
49、 functional element subscribers use to attach to the IPCablecom2 network. UEs may take any number of forms, including clients embedded into cable modems, clients embedded into set-top boxes, clients embedded into SIP Phones, and software clients on PCs or laptops. UEs support several interfaces to the IPCablecom2 network: Session Initiation Protocol (SIP): For signaling the creation, modification, and destruction of sessions. Media: For carrying audio or other media traffic, and related statistics. Network Address Translation (
