1、 INTERNATIONAL TELECOMMUNICATION UNION ITU-T F.600TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (04/2004) SERIES F: NON-TELEPHONE TELECOMMUNICATION SERVICES Data transmission services Service and operational principles for public data transmission service ITU-T Recommendation F.600 ITU-T F-SERIES
2、RECOMMENDATIONS NON-TELEPHONE TELECOMMUNICATION SERVICES TELEGRAPH SERVICE Operating methods for the international public telegram service F.1F.19 The gentex network F.20F.29 Message switching F.30F.39 The international telemessage service F.40F.58 The international telex service F.59F.89 Statistics
3、 and publications on international telegraph services F.90F.99 Scheduled and leased communication services F.100F.104 Phototelegraph service F.105F.109 MOBILE SERVICE Mobile services and multidestination satellite services F.110F.159 TELEMATIC SERVICES Public facsimile service F.160F.199 Teletex ser
4、vice F.200F.299 Videotex service F.300F.349 General provisions for telematic services F.350F.399 MESSAGE HANDLING SERVICES F.400F.499DIRECTORY SERVICES F.500F.549 DOCUMENT COMMUNICATION Document communication F.550F.579 Programming communication interfaces F.580F.599 DATA TRANSMISSION SERVICES F.600
5、F.699 AUDIOVISUAL SERVICES F.700F.799 ISDN SERVICES F.800F.849 UNIVERSAL PERSONAL TELECOMMUNICATION F.850F.899 HUMAN FACTORS F.900F.999 For further details, please refer to the list of ITU-T Recommendations. ITU-T Rec. F.600 (04/2004) i ITU-T Recommendation F.600 Service and operational principles f
6、or public data transmission service Summary This Recommendation contains the general service and operational principles to be followed for the international public data transmission service. The general model of international public data transmission service is outlined. This Recommendation includes
7、 important aspects of data transmission service addressing, quality of service, call progress signals, multicast operation, user classes of service and optional user facilities. The general provisions between Administrations and the general provisions between the Administration and the customer are
8、also described. The overview of the interrelationship between the relevant Recommendations necessary for offering data transmission service is in the scope of this Recommendation. Source ITU-T Recommendation F.600 was approved on 29 April 2004 by ITU-T Study Group 17 (2001-2004) under the ITU-T Reco
9、mmendation A.8 procedure. ii ITU-T Rec. F.600 (04/2004) FOREWORD The International Telecommunication Union (ITU) is 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
10、 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, establishes the topics for study by the ITU-T study
11、 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 standards are prepared on a collaborative basis w
12、ith 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 Recommendation may contain certain mandatory pro
13、visions (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 are used to express requirements. The use of s
14、uch 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 Intellectual Property Right. ITU takes no posit
15、ion 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 received notice of intellectual property, protec
16、ted by patents, which may be required to implement this Recommendation. However, implementors are cautioned that this may not represent the latest information and are therefore strongly urged to consult the TSB patent database. ITU 2004 All rights reserved. No part of this publication may be reprodu
17、ced, by any means whatsoever, without the prior written permission of ITU. ITU-T Rec. F.600 (04/2004) iii CONTENTS Page 1 Scope 1 2 References. 2 3 Terminology . 4 4 Abbreviations 4 5 General model of international PDTS 4 6 Addressing aspects . 5 7 Quality of service 6 8 Call progress signals. 6 9 M
18、ulticast operation . 6 10 User classes of service, categories of access 6 11 Optional user facilities 7 12 Data compression and security . 7 13 Administrative arrangements for international Closed User Groups . 7 14 Administrative arrangements for international Permanent Virtual Circuits. 7 15 Charg
19、ing principles. 7 16 Duration of service . 8 17 Outages . 8 18 Service calls 8 19 General provisions between Administrations. 8 20 General provisions between Administration and customer 8 ITU-T Rec. F.600 (04/2004) 1 ITU-T Recommendation F.600 Service and operational principles for public data trans
20、mission service 1 Scope 1.1 The establishment in various countries of public data networks creates the need to produce Recommendations to facilitate the provision of international public data transmission services. This Recommendation lays down the general service and operational principles to be fo
21、llowed for international data transmission services. This Recommendation provides an overview of interrelationship between the relevant Recommendations necessary for establishing, maintaining and offering the public data transmission service. 1.2 Public Data Transmission Service (PDTS) is a service
22、established by an Administration and provides exchange of data between service users. NOTE In this Recommendation, the expression “Administration“ is used to indicate both a telecommunication administration and a Recognized Operating Agency (ROA). An international PDTS may be provided through the in
23、terworking of national Public Data Networks (PDNs) and Integrated Services Digital Networks (ISDNs). Public data networks are established and operated by the Administration for the specific purpose of providing data transmission service. 1.3 Public data networks and public data transmission services
24、 do not include the Data Terminal Equipment (DTE). Therefore, additional capabilities arise because DTEs do not belong to PDNs and PDTSs. PDTS is assumed to be equivalent to the bearer service (see the definition of bearer service in ITU-T Recs I.112 and I.230). Public Data Networks in Open Systems
25、Interconnection (OSI) environments typically provide three lower layers: physical layer, data link layer and network layer (see ITU-T Recs X.200 | ISO/IEC 7498-1 and X.300). Various services based on PDTS may be operated by Administrations. Those services are assumed to be equivalent to teleservices
26、 (refer to ITU-T Recs I.112 and I.240 for the definition of teleservice). See Figure 1. 1.4 Four types of data transmission services are identified: circuit switched, packet switched, frame relay and leased circuit PDTS. Those services are based on Circuit-Switched Public Data Networks (CSPDNs), Pac
27、ket-Switched Public Data Networks (PSPDNs), Frame Relay Public Data Networks (FRPDNs) and Leased Circuits. 1.5 This Recommendation does not cover international leased circuit PDNs. Also, this Recommendation does not cover public data transmission services offered by Integrated Services Digital Netwo
28、rks (ISDNs). Access to PDTS in one country through the Public Switched Telephone Network (PSTN) in another country is also out of the scope of this Recommendation. This Recommendation does not cover data transmission possibilities provided by IP-based networks or data transmission possibilities prov
29、ided by modems on Public Switched Telephone Network (PSTN). 2 ITU-T Rec. F.600 (04/2004) User/networkinterfaceUser/networkinterfaceDTE DTEDCE DCEData networkDTE Data terminal equipment (subscribers terminal, teleservice server, etc.)DCE Data circuit-terminating equipmentData transmission service(bea
30、rer service)Teleservices(facsimile service, computer service, etc.)Figure 1/F.600 The environment for data transmission service 2 References The following ITU-T Recommendations and other references contain provisions which, through reference in this text, constitute provisions of this Recommendation
31、. 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 and other references list
32、ed 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. ITU-T Recommendation E.116 (1997), International telecommunication charge card ser
33、vice. ITU-T Recommendation E.164 (1997), The international public telecommunication numbering plan. ITU-T Recommendation F.17 (1992), Operational aspects of service telecommunications. ITU-T Recommendation I.112 (1993), Vocabulary of terms for ISDNs. ITU-T Recommendation I.230 (1988), Definition of
34、bearer service categories. ITU-T Recommendation I.240 (1988), Definition of teleservices. ITU-T Recommendation X.1 (2000), International user classes of service in, and categories of access to, public data networks and Integrated Services Digital Networks (ISDNs). ITU-T Recommendation X.2 (2000), In
35、ternational data transmission services and optional user facilities in public data networks and ISDNs. ITU-T Recommendation X.6 (1997), Multicast service definition, plus Amendment 1 (2000), Frame relay PVC multicast service definition. ITU-T Recommendation X.7 (2004), Technical characteristics of d
36、ata transmission services. ITU-T Recommendation X.92 (1988), Hypothetical reference connections for public synchronous data networks. ITU-T Recommendation X.96 (2000), Call progress signals in public data networks. ITU-T Rec. F.600 (04/2004) 3 ITU-T Recommendation X.110 (2002), International routing
37、 principles and routing plan for Public Data Networks. ITU-T Recommendation X.111 (2003), Principles for the routing of international frame relay traffic. ITU-T Recommendation X.115 (1995), Definition of address translation capability in public data networks. ITU-T Recommendation X.116 (1996), Addre
38、ss translation registration and resolution protocol. ITU-T Recommendation X.121 (2000), International numbering plan for public data networks. ITU-T Recommendation X.130 (1988), Call processing delays in public data networks when providing international synchronous circuit-switched data services. IT
39、U-T Recommendation X.131 (1988), Call blocking in public data networks when providing international synchronous circuit-switched data services. ITU-T Recommendation X.135 (1997), Speed of service (delay and throughput) performance values for public data networks when providing international packet-s
40、witched services. ITU-T Recommendation X.136 (1997), Accuracy and dependability performance values for public data networks when providing international packet-switched services. ITU-T Recommendation X.137 (1997), Availability performance values for public data networks when providing international
41、packet-switched services. ITU-T Recommendation X.144 (2003), User information transfer performance parameters for public frame relay data networks. ITU-T Recommendation X.145 (2003), Connection establishment and disengagement performance parameters for public Frame Relay data networks providing SVC
42、services. ITU-T Recommendation X.146 (2000), Performance objectives and quality of service classes applicable to frame relay. ITU-T Recommendation X.147 (2003), Frame Relay network availability. ITU-T Recommendation X.180 (1988), Administrative arrangements for international Closed User Groups (CUGs
43、). ITU-T Recommendation X.181 (1988), Administrative arrangements for the provision of international permanent virtual circuits (PVCs). ITU-T Recommendation X.200 (1994) | ISO/IEC 7498-1:1994, Information technology Open Systems Interconnection Basic reference model: The basic model. ITU-T Recommend
44、ation X.272 (2000), Data compression and privacy over frame relay networks. ITU-T Recommendation X.300 (1996), General principles for interworking between public networks and between public networks and other networks for the provision of data transmission services. ITU-T Recommendation X.371/Y.1402
45、 (2001), General arrangements for interworking between Public Data Networks and the Internet. 4 ITU-T Rec. F.600 (04/2004) 3 Terminology The definitions of terms used in this Recommendation are in ITU-T Rec. X.7. NOTE Within this Recommendation the term “Frame Relay Public Data Network (FRPDN)“ is u
46、sed. Some other Recommendations use the term “Public Frame Relay Data Network (PFRDN)“. Both terms have absolutely the same meaning. 4 Abbreviations This Recommendation uses the following abbreviations: CSPDN Circuit-Switched Public Data Network CUG Closed User Group DCE Data Circuit-terminating Equ
47、ipment DTE Data Terminal Equipment FRPDN Frame Relay Public Data Network IDSE International Data Switching Exchange ISDN Integrated Services Digital Network OSI Open Systems Interconnection PSPDN Packet-Switched Public Data Network PDN Public Data Network PDTS Public Data Transmission Service PSTN P
48、ublic Switched Telephone Network PVC Permanent Virtual Circuit ROA Recognized Operating Agency 5 General model of international PDTS 5.1 An international PDTS is based on an interconnection of national PDTSs. Such an interconnection is achieved with the interconnection of International Data Switchin
49、g Exchanges (IDSEs) in relevant countries. The route for a call consists of three parts (see Figure 2): an originating national network part, from calling DTE to originating IDSE through the originating national PDN; an international network part, from the originating IDSE to the destination IDSE; a destination national network part, from the destination IDSE to the called DTE through the destination national PDN. ITU-T Rec. F.600 (04/2004) 5 Figure 2/F.600 Components of an internat
