1、INTERNATIONAL TELECOMMUNICATION UNION ITU-T TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU Q.76 (02/95) GENERAL RECOMMENDATIONS ON TELEPHONE SWITCHING AND SIGNALLING FUNCTIONS AND INFORMATION FLOWS FOR SERVICES IN THE ISDN SERVICE PROCEDURES FOR UNIVERSAL FUNCTIONAL MODELLING AND INFORMATION FLOWS
2、PERSONAL TELECOMMUNICATION - ITU-T Recommendation Q.76 (Previously “CCITT Recommendation”) ITU-T RECRN*Q-76 95 4862593 Ob03959 325 FOREWORD The ITU-T (Telecommunication Standardization Sector) is a permanent organ of the International Telecommunication Union (IT). The IT-T is responsible for studyin
3、g technical, operating and tariff questions and issuing Recommen- dations on them with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Conference (WTSC), which meets every four years, establishes the topics for study by the ITU-T Study Gro
4、ups which, in their turn, produce Recommendations on these topics. The approval of Recommendations by the Members of the IT-T is covered by the procedure laid down in WTSC Resolution No. 1 (Helsinki, March 1-12, 1993). ITU-T Recommendation Q.76 was prepared by IT-T Study Group 11 (1993-1996) and was
5、 approved under the WTSC Resolution No. 1 procedure on the 7th of February 1995. NOTE In this Recommendation, the expression “Administration” is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. O ITU 1995 All rights reserved. No part of this
6、 publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the ITU. ITU-T RECNN*(a.76 95 = 486259L ObOL9b0 947 CONTENTS Introduction 1.1 Scope of Recommendation . 1.2 References . 1.3 Defi
7、nition of terms Terms defined in Recommendation F.851 Terms not defined in Recommendation F.851 1.4 Description of lJPT . 1.5 Glossary of abbreviations . 1.6 Conventions Functional model for UPT Service Set 1 2.1 Functional model 2.2 Descriptions of the functional entities . Information flows for UP
8、T Service Set 1 . 1.3.1 1.3.2 3.1 3.2 3.3 3.4 3.5 3.6 UPT elementary procedures and common sequences . Access. identification and authentication 3.1.1.1 Outline description 3.1.1.2 Information flow diagrams 3.1.2 Call release sequences . 3.1.2.1 Information flow diagrams 3.1.3 Procedure identificati
9、on including global follow-on 3.1.3.1 Outline description 3.1.3.2 Information flow diagrams Procedures for personal mobility 3.2.1 Registration and deregistration . 3.2.1.1 Outline description 3.2.1.2 Information flow diagrams UPT call handling procedures . 3.3.1.1 Outline description 3.3.1.2 Inform
10、ation flow diagrams Incoming call to UPT user 3.3.2.1 Outline description 3.3.2.2 Information flow diagrams Procedures for UPT service profile management . 3.4.1 Outline description 3.4.2 Information flow diagrams Third-party procedures 3.5.1 Outline description 3.5.2 Information flow diagrams Defin
11、ition of individual information flows . 3.6.1 Relationship ra (SSF-SCF) SSF to SCF flows SCF to SSF flows 3.6.2 Relationship rb (SCF-SDF) . SCF to SDF flows . SDF to SCF flows . 3.6.3 Relationship r, (SCF-SRF) . SCF to SRF flows . SRF to SCF flows . 3.1.1 3.3.1 Outgoing calls . 3.3.2 3.6.1.1 3.6.1.2
12、 3.6.2.1 3.6.2.2 3.6.3.1 3.6.3.2 Recommendation Q.76 (0295) Page 1 1 3 3 3 4 4 4 6 6 6 6 9 11 11 11 11 16 18 21 21 22 23 23 24 24 27 27 28 28 28 28 28 31 31 31 34 34 36 36 36 36 37 38 38 38 38 38 38 1 ITU-T RECMN*Q-76 95 4862593 0603963 883 4 SDL diagrams for functional entities . 5 Functional Entit
13、y Actions . 5.1 Functional Entity . FE2 (SSFKCF) . 5.2 Functional Entity . FE6 (SCF) . 5.3 Functional Entity . FE7 SDF(o)J 5.4 Functional Entity - FE8 (SRF) . 5.5 Functional Entity - FE9 SDF(h) 6 Mapping of functional entities to physical entities . Annex A - Outgoing call follow-on . A.l Initiation
14、 of follow-on . A.2 Release of resources A.2.1 Release of B-party . A.2.2 A-party resources A.3 Description and diagrams A.3.1 Outline description A.3.2 Information flow diagrams A.3.3 Functional entity actions . Functional Entity - FE2 (SSFKCF) . A.3.3.1 A.3.3.2 Functional Entity - FE6 (SCF) . ii R
15、ecommendation Q.76 (0395) Page 39 57 57 59 66 67 67 67 69 69 70 70 71 71 71 71 74 74 74 - - ITU-T RECMNxQ-76 95 = 4862591 060L9b2 7LT SUMMARY This Recommendation provides an Intelligent Network Capability Set 1 compliant description of PT Service Set 1 features and procedures. It does not provide an
16、 implementation or technology independent description. The 4.76 functional model, information flows, logic for sequencing of information flows and Intelligent Network functional entity actions are those of Intelligent Network Capability Set 1, as described in the 1993 Q.121-Series of Recommendations
17、 of ITU-T Study Group 1 1. The service basis of this Recommendation is provided by UPT Service Set 1 as described in Recommendation F.851 2, “Universal Personal Telecommunication - Service Description. Version 10”. In relation to Version 10 of Recommendation F.85 1 2, includes procedures for the fol
18、lowing features which are achievable in Intelligent Network Capability Set 1 : Essential UPT user identity authentication InCall registration Outgoing WT call InCall delivery Optional Remote InCall registration OutCall follow-on Global follow-on UPT-specific indications UPT service profile interroga
19、tion UPT service profile modification Third-party protection Optional Reset of registrations for incoming UPT calls. This Recommendation includes the essential features of Service Set 1 and other features which can be expected to be achievable in current networks with the addition of Intelligent Net
20、work capabilities such as CS-I. Other Service Set 1 features are outside the scope of initial standardization in this Recommendation, but may be added later as Addenda. iii Recommendation Q.76 (OU95) - ITU-T RECMN*O-76 95 m 4862591 ObOLSb4 592 m Recommendation Q.76 SERVICE PROCEDURES FOR UNIVERSAL P
21、ERSONAL TELECOMMUNICATION - FUNCTIONAL MODELLING AND INFORMATION FLOWS (Geneva, 1995) 1 Introduction 1.1 Scope of Recommendation This Recommendation defines an Intelligent Network Capability Set 1 (IN CS-1) compliant service description of Universal Personal Telecommunication (Um). It does not in an
22、y way provide an implementation or technology independent description. It identifies the functional capabilities and information flows from IN CS-1 needed to support the service for UPT Service Set 1, the initial phase of UPT introduction, as defined in Recommendations F.850 i and F.851 2. Recommend
23、ation F.851 2 categorizes the functionality into essential and optional. Not all the features of Recommendation F.85 1 2 can be supported by existing networks. This Recommendation includes only those service features achievable with current ITU-T signalling Recommendations. Networks not supporting e
24、xisting IT-T signalling Recommendations may be unable to provide all the features in this Recommendation. This Recommendation employs a methodology based on that specified in Recommendation 4.65 3, appropriately modified to take account of the facts that the functional model, information flows, logi
25、c for sequencing of information flows and IN functional entity actions are defined in Recommendation 4.1214 4 and Recommendation 4.1218 5, and are not defined within this Recommendation. All UPT procedures described in this Recommendation are associated with a call, as required by IN CS-1 capabiliti
26、es, and are invoked by interruption of call processing. Only the relationships related to IN service execution are addressed in this Recommendation. This Recommendation does not address the relationship between UPT service and basic call. This relationship is as prescribed for IN CS-1 services and i
27、s described in Recommendation Q.1214 4. It should be noted that the definitions of CCAF and CCF are based on corresponding 4.71 6 ISDN definitions but are modified for use in IN. In particular, the enhanced basic call state model of the IN defines standard detection points (DPs) at which IN service
28、feature logic instances can be invoked. These DPs correspond to the 4.71 “hooks” where an ISDN supplementary service interfaces to the 4.71 basic call model. Call modelling and the SSFICCF functional entity are described in detail in clauses 3/4.1214 and 4/Q.1214 4. In CS-1, the SSF/CCF functional e
29、ntity is treated as indivisible, i.e. the interface between CCF and SSF is not a matter for CS-1 standardization. The procedures, functional entities and information flows described in this Recommendation relate to service provision across multiple networks, to the level of Intelligent Network CS-1
30、capabilities, by allowing access to the UPT users home service providers database from the originating network across a network boundary. It is assumed throughout this Recommendation that the UPT user is a visitor on the originating network and no UPT service profile transfer is provided from the UP
31、T users home database to the originating network database. All interactions with SDF(h) are controlled by the SCF in the originating network, in conformance with CS-1 guidelines. The relationship between this Recommendation and UPT Service Set 1 as defined in Recommendation F.851 2 is as follows: Se
32、rvice provided - Telephone (.e. voice-grade connection) Networks involved - All voice networks (e.g. PSTN, ISDN, PLMN) Recommendation Q.76 (OZ95) 1 ITU-T RECMNtQ-76 95 = 4Bb2593 Ob03965 429 Features Included in this Recommendation Essential UPT user identity authentication InCall registration Outgoi
33、ng UPT call InCall delivery Optional Remote InCall registration OutCall follow-on Global follow-on UPT-specific indications UPT service profile interrogation UPT service profile modification Not included in this Recommendation Optional OutCall registration Remote OutCall registration AIICall registr
34、ation Remote AllCali registration Linked registration Remote Linked registration Multiple Terminai Address registration Call Pick-up Variable default InCall registration Intended Recipient Identity Presentation Access to groups of UPT service profiles UPT service assistance Called party specified se
35、cure answering of incoming UPT calls UPT service provider authentication Numbering - UPT numbering is based on a personal UPT number which uniquely identifies the UPT user. Charging Optional Location related charges based on the callers location and the current location of the called UPT user (see N
36、ote). the selection of the UPT user telecommunication services. Service profiles - Personalized UPT service profile to enable UPT user and subscriber control and flexibility in Third-party protection mechanisms Essential None identified in Recommendation F.851 2. Included in this Recommendation 2 Re
37、commendation Q.76 (OZ95) - - ITU-T RECMN*Q.76 95 4862591 0601766 365 Optional Reset of registrations for incoming UPT calls. Not included in this Recommendation Optional Exemption from any UPT usage Indications of UFT registrations Blocking/deblocking of registrations for incoming UPT calls Blocking
38、/deblocking of incoming UPT calls Reset of registration for outgoing UPT calls Suspension of registration for outgoing UPT calls NOTE - The charging information flows in this Recommendation are independent of the method of determination of charges. This Recommendation includes procedures for the ess
39、ential and optional features as indicated and for reset of registration for incoming UPT calls. 1.2 References The following Recommendations and other references contain provisions which, through reference in this text, constitute provisions of this Recommendation. At the time of publication, the ed
40、itions indicated were valid. All Recommendations and other references are subject to revision: all users of this Recommendation are therefore encouraged to investigate the possibility of applying the most recent edition of the Recommendations and other references listed below. A list of the currentl
41、y valid ITU-T Recommendations is regularly published. 111 121 i31 141 Pl i61 71 SI 1.3 ITU-T Recommendation F.850 (1 993), Principles of Universal Personal Telecommunication (UPT). ITU-T Recommendation F.85 1 (1995), Universal Personal Telecommunication (UPT) - Service description (service set i). C
42、CITT Recommendation 4.65 (19881, Stage 2 of the method for the characterization of services supported by un ISDN. ITU-T Recommendation Q. 1214 (1993). Distributedfinctional plane for intelligent network CS-1. IT-T Recommendation Q. 12 18 (1993), Inteace Recommendation for intelligent network CS-I. I
43、TU-T Recommendation Q.71 (1993), ISDN circuit mode switched bearer services. ITU-T Recommendation Q. 1219 (1994), Intelligent network users guide for capability ser 1 ITU-T Recommendation D.280 (1 993, Principles for charging and billing, accounting und reimbursements for Universal Personal Telecomm
44、unication. Definition of terms For the purposes of this Recommendation, the following terms and definitions apply. 1.3.1 The following terms are defined in Recommendation F.851 2: Terms defined in Recommendation F.8512 UPT (Universal Personal Telecommunication) UPT subscriber UPT user UPT service pr
45、ovider UPT number UPT access code Recommendation Q.76 (02i95) 3 ITU-T RECMNrQ.76 95 m 4862591 O603967 2TL m UPT environment UFT service profile UPT service profile management Terminal address Network limitations 1.3.2 Terms not defined in Recommendation F.851 2 The following terminology is used in t
46、his Recommendation: 1.3.2.1 home network The network with which the users UPT service provider is associated is described as the “home network”. The UPT service provider may not be the network provider but must be associated with a network. The UPT users default registration locations need not be on
47、 the home network. 1.3.2.2 the “originating” network. It is assumed that there is at least one UPT service provider associated with this network. 1.3.2.3 originating network: The network from which any user originates a UPT service request or outgoing call is terminating network: The called partys c
48、urrent network is the “terminating” network. 1.3.2.4 stored. It is designated SDF(h). home SDF: The “home SDF is the UPT service providers SDF, where the UPT users service profile is 1.3.2.5 originating network. It is designated SDF(o). originating SDF: The “originating SDF is the SDF of the UPT ser
49、vice provider associated with the 1.3.2.6 Where it is necessary to distinguish between SDFs of the A and B parties, the notation SDF(h)A and SDF(h)B is used. SDF(h)A and SDF(h)B: A UPT user who is the called party may be a visitor on the terminating network. 1.4 Description of PT UFT introduces the concept of UPT number. In fixed telecommunication networks, a user or subscriber is associated with the network access point of the terminal, the point of attachment of the terminal. In certain mobile telec
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