ITU-T Q 86 4-1997 Stage 2 Description for Charging Supplementary Services International Freephone Service (IFS) - Series Q Switching and Signalling Functions and Information Flows ic.pdf

1、STD*ITU-T RECMN Q=Bb*q-ENGL 1777 qBb2571 Ob110575 115T INTERNATIONAL TELECOMMUNICATION UNION ITUWT TELECOMMUNICATION STANDARDIZATION SECT0 R OF ITU 4.86.4 (06197) SERIES Q: SWITCHING AND SIGNALLING Functions and information flows for services in the ISDN - Supplementary services Stage 2 description

2、for charging supplementary senrices: International Freephone Service (IFS) ITU-T Recommendation Q.86.4 (Previously CCITT Recommendation) STD-ITU-T RECMN d.Bb-4-ENGL 1977 4Bb259L ObLi057b 37b ITU-T Q-SERIES RECOMMENDATIONS SWITCHING AND SIGNALLING SIGNALLING IN THE INTERNATIONAL MANUAL SERVICE Q. 1 4

3、.3 INTERNATIONAL AUTOMATIC AND SEMI-AUTOMATIC WORKING FUNCTIONS AND INFORMATION FLOWS FOR SERVICES IN THE ISDN Q.4-Q.59 Q.60-Q.99 Methodology Q.60-Q.67 Basic services Q.68-Q.79 CLAUSES APPLICABLE TO ITU-T STANDARD SYSTEMS Q. 1 OO-Q. 1 1 9 SPECIFICATIONS OF SIGNALLING SYSTEMS No. 4 AND No. 5 SPECIFIC

4、ATIONS OF SIGNALLING SYSTEM No. 6 SPECIFICATIONS OF SIGNALLING SYSTEM R1 SPECIFICATIONS OF SIGNALLING SYSTEM R2 DIGITAL EXCHANGES INTERWORKING OF SIGNALLING SYSTEMS SPECIFICATIONS OF SIGNALLING SYSTEM No. 7 DIGITAL SUBSCRIBER SIGNALLING SYSTEM No. 1 PUBLIC LAND MOBILE NETWORK INTERWORKING WITH SATEL

5、LITE MOBILE SYSTEMS INTELLIGENT NETWORK BROADBAND ISDN (2.1 20-Q.249 Q.250-Q.309 Q.31O-Q.399 Q.4004.499 Q.500-Q.599 Q.60O-Q.699 Q. 700-Q.849 Q.8504.999 Q. 100O-Q. 1 O99 Q.llOO-Q.1199 Q. 12004.1999 Q.2000-(2.2999 For further details, please refer to ITU-T List of Recommendations. STD-ITU-T RECMN Q-Bb

6、-q-ENGL 1977 LiAb2571 Ob110577 222 M ITU-T RECOMMENDATION 4.86.4 STAGE 2 DESCRIPTION FOR CHARGING SUPPLEMENTARY SERVICES: INTERNATIONAL FREEPHONE SERVICE (IFS) Summary Consistent with Recommendation E. 152, International Freephone Service (IFS) Stage 1, this Recommendation constitutes the Stage 2 de

7、scription for the service, including the functional architecture, Intelligent Network-based descriptions for normal IFS and optional features, and allocation of functional entities to physical locations. This Recommendation also provides Q. 1200-Series references for information flows, SDL diagrams,

8、 and functional entity actions. Source ITU-T Recommendation 4.86.4 was prepared by ITU-T Study Group 11 (1997-2000) and was approved under the WTSC Resolution No. 1 procedure on the 5th of June 1997. FOREWORD ITU (International Telecommunication Union) is the United Nations Specialized Agency in the

9、 field of telecommunications. The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of the ITU. The 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 b

10、asis. The World Telecommunication Standardization Conference (WTSC), which meets every four years, establishes the topics for study by the IT-T Study Groups which, in their turn, produce Recommendations on these topics. The approval of Recommendations by the Members of the ITU-T is covered by the pr

11、ocedure laid down in WTSC Resolution No. 1. In some areas of information technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis with IS0 and IEC. NOTE In this Recommendation, the expression “Administration“ is used for conciseness to indicate both

12、a telecommunication administration and a recognized operating agency. INTELLECTUAL PROPERTY RIGHTS The ITU draws attention to the possibility that the practice or implementation of this Recommendation may involve the use of a claimed Intellectual Property Right. The ITU takes no position concerning

13、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, the ITU hadhad not received notice of intellectual property, protected by p

14、atents, 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. O ITU 1998 All rights reserved. No part of this publication may be reproduced or

15、 utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the ITU. 11 Recommendation 4.86.4 (06/97) 4 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 4.10 4.1 1 STD*ITU-T RECMN Q-Bb-Y-ENGL 1777 W 118b259L Ob110577 UT5 CONTENTS Page

16、International Freephone Service (IFS) . Scope References Definitions Symbols and abbreviations . Description . Derivation of the functional model . 4.6.1 Functional model description 4.6.2 Description of functional entities 4.6.3 Relationship with basic service . IN SIB-based service feature definit

17、ions 4.7.1 Announcement for caller . 4.7.2 Geographical zone call routing 4.7.3 Variable cai1 routing 4.7.4 Additional customer service statisticsheal-time information Information flows . SDL diagrams for functional entities . Functional entity actions . Allocation of functional entities to physical

18、 locations . Recommendation Q.86.4 (06/97) 1 1 1 2 3 4 4 6 7 8 15 15 15 15 16 . 111 STD*ITU-T RECMN d.Bb-4-ENGL 1997 48b2591 Ob40580 817 D Recommendation Q.86.4 STAGE 2 DESCRIPTION FOR CHARGING SUPPLEMENTARY SERVICES: INTERNATIONAL FREEPHONE SERVICE (IFS) (Geneva, 1997) 4 International Freephone Ser

19、vice (IFS) 4.1 Scope This Recommendation defines the stage 2 service description for the call handling aspects of the international freephone service on the international Public Switched Telephone Network (PSTN). It is also applicable to IFS callers located on ISDNs or private networks directing cal

20、ls towards IFS customers on the PSTN. It may be applicable to some degree to called IFS customers on ISDNs or private networks. This Recommendation is specified according to the methodology defined in Recommendation 4.65 (1 997). This Recommendation does not formally describe the relationship betwee

21、n this supplementary service and basic call. Where possible, this information is included for guidance. “The international freephone service (IFS) enables a customer in one country to be assigned one or more special telephone numbers in another country(ies) which allow callers in those countries to

22、call the customer free of charge. All service and call-related charges are paid by the customer. l1 (4.1/E. 152.) This Recommendation is applicable to the stage 3 Recommendation for the IFS service. The term “stage 3“ is also defined in Recommendation 1.130. Where the text indicates the status of a

23、requirement (i.e. as strict command or prohibition, as authorization leaving freedom, or as a capability or possibility), this shall be reflected in the text of the relevant stage 3 Recommendations. Conformance to this Recommendation is met by conforming to the stage 3 Recommendations with the field

24、 of application appropriate to the equipment being implemented. Therefore no method of testing is provided for this Recommendation. 4.2 References - The following ITU-T Recommendations and other references contain provisions which, through reference in this text, constitute provisions of this Recomm

25、endation. At the time of publication, the editions 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 ref

26、erences listed below. A list of the currently valid IT-T Recommendations is regularly published. - - IT-T Recommendation E. 152 (1 996), Internationalf7eephone service. ITU-T Recommendation Q. 12 13 (1 995), Global functional plane fur intelligent network cs-I. ITU-T Recommendation 4.1214 (19959, Di

27、stributed functional plane for intelligent network cs-I. - Recornmendation Q.86.4 (06197) 1 STD-ITU-T RECMN B.Bb-11-ENGL 1997 iAb2591 Ob110581 753 - ITU-T Recommendation Q. 121 5 (1995), Physical plane for intelligent network CS-I. - ITU-T Recommendation 4.65 (1997), The uniJied hnctional methodolog

28、y for the characterization of services and network capabilities. 4.3 Definitions This Recommendation defines the following terms. 4.3.1 IFS customer: The individual or entity who (or which) obtains an international freephone service from an IFS service provider, and is responsible for payment of all

29、 charges due to that IFS service provider. 4.3.2 These definitions are extracted from clause 3E. 152. IFS caller: The person who places a call to an IFS number. 4.4 Symbols and abbreviations This Recommendation uses the following symbols and abbreviations: CCAF CCF CID CIDFP CLI FE FIFO IFS IN ISDN

30、LE PNX PSTN SCF SDF SDL SIB SRF SSF TE TR 4.5 Call Control Agent Function Call Control Function Call Instance Data Call Instance Data Field Pointer Calling Line Identity Functional Entity First-In-First-Out International Freephone Service Intelligent Network Integrated Services Digital Network Local

31、 Exchange Private Network Exchange Public Switched Telephone Network Service Control Function Service Data Function Specification and Description Language Service Independent Building Block Specialized Resource Function Service Switching Function Terminal Equipment Transit Exchange Description Not a

32、pplicable. 2 Recommendation 4.86.4 (06/97) 4.6 International fieephone service and its optional customer features are characterized in terms of SIBS in the IN context. The applicable functional model is that of the intelligent network as defined in Recommendation Q. 12 14, modified to show explicitl

33、y that initiating and terminating end treatment are required. Derivation of the functional model 4.6.1 Functional model description The functional model defining the supplementary service aspects of IFS is shown in Figure 4-1, FE4 7) -:- 4. TllYS-% FE5 Figure 4-VQ.86.4 - IFS functional model 2 Descr

34、iption of functional entities The Functional Entities (FES) required by IFS above those of basic call are as follows: - - - - - - - - FE1 : Originating service switching function. FE2: Originating side specialized resource function. FE3 : Originating side service control function. FE4: Originating s

35、ide service data function. FE5 : Terminating side service switching function. FE6: Terminating side service control function. FE7: Terminating side specialized resource function. FES: Terminating side service data function. Recommendation Q.86.4 (06/97) 3 - STD-ITU-T RECMN Q*Bb*l-ENGL 1997 lBb2591 O

36、bl0583 52b The following table shows the functional entities spanned by each SIB used in this Recommendation, and the subclauses of Recommendation Q. 1213 corresponding to the SIBS. 4.6.3 Relationship with basic service The relationship of the IFS functional model to basic service is shown in Figure

37、 4-2. NOTE -The basic call model for this Recommendation is defined in Recommendation 4.1214. -:_: FE4 FE87 CCF Call Control Function CCAF Call Control Agent Function Figure 4-2/Q.86.4 - Relationship of IFS functional model to basic service 4.7 These global service logic and SIB diagrams conform to

38、the semantics and syntax of Recommendations Q.1203 and 4.1213 (revised), with the exception that SIB error outputs are not shown or terminated. It is expected that error handling will be implementation-specific and is not covered in this Recommendation. IN SIB-based service feature definitions 4 Rec

39、ommendation 4.86.4 (06/97) STD-ITU-T RECMN Q-Bb-4-ENGL 1797 m 48b2591 Ob90589 Lib2 m Object name Translate filter With no additional customer service features, the SIB-based network support for the IFS service is shown in Figure 4-3. IFS number translation list Originally dialled IFS number Translat

40、e dialled # to destination network # Translated attribute CIDFP-info Log to billing file for charging to account # Network routing number Originally dialled IFS number Address anaiysed Service support data CIDFP-log Proceed with new data Values IFS number and call attempt time Figure 4-3lQ.86.4 - No

41、rmal IFS service The service support data for this service is shown in the following tables: I Translate SIB I I Servicesupportdata I Values CIDFP-translated I Network routing number Log call information SIB NOTE - While this Recommendation does not show all possible combinations of IFS and its opti

42、ons, combinations consistent with the requirements of the stage 1 service description can be readily formulated using IN techniques. Recommendation Q.86.4 (06/97) 5 STDOITU-T RECMN Q-Bb*q-ENGL 1997 W 98b2591 Ob110585 3T9 Service support data 4.7.1 Announcement for caller See Figure 4.4. Values Confi

43、rm no-charge nature of call to caller Announcement ID Repetition requested A Prepared to complete call Pointer to “confirmation of no-charge message No *, Continue with existing data Figure 4-4/Q.86.4 - No-charge announcement to caller The service support data for this service feature is shown in th

44、e following table: User interaction SIB I Collect informationtype I Null (Le. no collection of user input) I CIDFP-callgarty I Caler I This terminating call treatment is in addition to the translatiodlogging for billing purposes at the initiating end for normal IFS. This feature can also be provided

45、 by the originating network by incorporating the user interaction SIB into normal IFS service (see 4.7, Figure 4-3), as shown in Figure 4-5. -. 6 Recommendation Q.86.4 (06/97) STD-ITU-T RECMN Q-b-4-ENGL 1997 D 4b259L Ob11058b 235 Translate dialled # to destination network # Confirm no-charge nature

46、of call to caller Log to billing file for charging to account # TllB0860-96 Address Proceed with analysed new data Figure 4-5/Q.86.4 - IFS with originating no-charge announcement 4.7.2 Geographical zone call routing See Figure 4-6. Translate Log to billing dialled # to file for destination charging

47、to network # account # Check calling line identity against allowed zone list from zone not A Address analysed supported Y Clear call Figure 4-6lQ.86.4 - Geographical zone call routing Tl180870-96 Proceed with new data Recommendation 4.86.4 (06/97) 7 - STD-ITU-T RECMN Q-Bb-4-ENGL 1777 48b2571 Ob40587

48、 171 Service support data The service support data for this service feature is shown in the following tables: Values Screen list name Screen list filter CIDFP-screen Acceptable zone CLI list Calling line identity Calling line identity User Interaction SIB Service support data Announcement ID Values

49、Pointer to “call not allowed from your zone“ message Repetition requested Collect informationtype I CIDFP-callqarty I Caller The service support data for the translate and log SIBS is the same as in 4.6. 4.7.3 Variable call routing Variable call routing consists of a number of service features: 4.7.3.1 See Figure 4-7. Point of origin call routing No Null (Le. no collection of user input) Translate dialled # and calling line id to destination network # Log to billing file for charging to account # A Address analysed & T1180880-96 Pr