ITU-T SERIES Q SUPP 4-1998 Number Portability - Call Control for Capability Set 1 Service Provider Portability - Series Q Switching and Signalling (Study Group 11 29 pp)《号码可携带性 - 能.pdf

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1、INTERNATIONAL TELECOMMUNICATION UNION ITU=T TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU Series Q Supplement 4 (05198) SERIES Q: SWITCHING AND SIGNALLING Number portability - Call control for capability set I service provider portability ITU-T Q-series Recommendations - Supplement 4 (Previously C

2、CITT Recommendations) ITU-T Q-SERIES RECOMMENDATIONS SWITCHING AND SIGNALLING SIGNALLING IN THE INTERNATIONAL MANUAL SERVICE INTERNATIONAL AUTOMATIC AND SEMI-AUTOMATIC WORKING FUNCTIONS AND INFORMATION FLOWS FOR SERVICES IN THE ISDN SPECIFICATIONS OF SIGNALLING SYSTEMS No. 4 AND No. 5 SPECIFICATIONS

3、 OF SIGNALLING SYSTEM No. 6 SPECIFICATIONS OF SIGNALLING SYSTEM RI 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 SATELLITE M

4、OBILE SYSTEMS INTELLIGENT NETWORK BROADBAND ISDN CLAUSES APPLICABLE TO ITU-T STANDARD SYSTEMS Q. I -Q.3 Q.4-Q . 59 Q.60-Q.99 Q. 1 OO-Q .I 1 9 Q. 120-Q .249 Q .250-Q. 309 Q.310-Q.399 Q.400-Q.499 Q.500-Q.599 Q.600-Q.699 Q.700-Q.849 Q.850-Q.999 Q.1000-Q.1099 Q.ll OO-Q.1199 Q. 1200-Q. 1999 Q.2000-Q.2999

5、 For further details, please refer to ITU-T List of Recommendations. SUPPLEMENT 4 TO ITU-T Q-SERIES RECOMMENDATIONS NUMBER PORTABILITY - CALL CONTROL FOR CAPABILITY SET 1 SERVICE PROVIDER PORTABILITY Summary This Supplement describes the additions required to support Service Provider Portability in

6、a Signalling System Number No. 7 network for Number Portability Capability Set 1 (NPCS-1). The Portability Number Call Control for Service Provider Portability (PNCC-SPP) in a Signalling System Number No. 7 network provides the core function to support portability for geographic numbers using the “o

7、nward routing and “all call query“ methods. Source Supplement 4 to ITU-T Q-series Recommendations was prepared by ITU-T Study Group 11 (1997- 2000) and was approved under the WTSC Resolution No. 5 procedure on the 15“ of May 1998. Q series - Supplement 4 (05/98) 1 STD-ITU-T RECNN SERIES Q SUPP 4-ENG

8、L 1998 4862573 ObSb088 945 II FOREWORD ITU (International Telecommunication Union) is the United Nations Specialized Agency in the 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, o

9、perating and tariff questions and issuing Recommendations 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 Groups which, in th

10、eir turn, produce Recommendations on these topics. The approval of Recommendations by the Members of the ITU-T is covered by the procedure laid down in WTSC Resolution No. 1. In someareas of information technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborat

11、ive basis with IS0 and IEC. NOTE In this Recommendation the term recognized operating agency (ROA) includes any individual, company, corporation or governmental organization that operates a public correspondence service. The terms Administration, ROA and public correspondence are defined in the Cons

12、titution of the ITU (Geneva, 1992). 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 the evidence, validity or applicab

13、ility 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 had not received notice of intellectual property, protected by patents, which may be required to impl

14、ement 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 1999 All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means

15、, electronic or mechanical, including photocopying and microfilm, without permission in writing from the ITU. 11 Q series - Supplement 4 (05/98) 1 2 3 4 5 5.1 5.2 6 6.1 Page Scope References Terms and definitions . Abbreviations . General . Purpose . Application . Description . Overview of number po

16、rtability SS7 capabilities 6.1.1 Inter-exchange Portable Number Call Control (PNCC-SPP) . 6.1.2 Configuration models 6.2 Procedures 6.2.1 Normal procedures 6.2.2 Exceptional procedures . 6.2.3 Interworking considerations 6.2.4 Interactions with supplementary services 6.2.5 SDL . 7 7. 1 Functional ca

17、pabilities and information flows . Functional entity model 7.1.1 7.1.2 7.1.3 7.1.4 Description of portable number detection functional entity (FE1) . Description of portable number query fnctional entity (FE2) . Description of FE3, FE4, and FE5 Description of recipient exchange functional entity (FE

18、6) . 7.2 Information flow model 7.2.1 Invoking the portable number detection functional entity (FE1) 7.2.2 Invoking the portable number query functional entity (FE2) 7.2.3 Invoking the recipient exchange functional entity (FE6) 7.2.4 Activation and deactivation of PNCC-SPP network capability 7.2.5 E

19、xceptional procedures . 7.3 Allocation of functions to equipment . 8 Signalling requirements Q series . Supplement 4 (0598) 1 1 1 2 2 3 10 10 10 10 10 11 11 11 11 11 11 12 12 12 . 111 O 48b2591 ObSb090 CT3 W Page Annex A - Intelligent Network support for PNCC for Service Provider Portability A.l Sco

20、pe 14 A.2 General description . A.2.1 General assumptions . 14 A.2.2 Number Portability data 14 IN support for Service Provider Portability of Geographic Numbers . 15 Information flows for PNCC-SSP using the IN architecture 16 14 14 A.2.3 A.2.4 I iv Q series - Supplement 4 (05198) STD-ITU-T RECMN SE

21、RIES Q SUPP 4-ENGL 1998 b 48b2591 Ob5bOql 43T 9 Supplement 4 to Q-series Recommendations NUMBER PORTABILITY - CALL CONTROL FOR CAPABILITY SET 1 SERVICE PROVIDER PORTABILITY (Geneva, 1998) 1 Scope This Supplement describes the additions required to support Service Provider Portability in a Signalling

22、 System Number No. 7 network for Number Portability Capability Set 1 (NPCS-1). The definition for Service Provider Portability is defined in reference i. The Portability Number Call Control for Service Provider Portability (PNCC-SPP) in a Signalling System Number No. 7 network provides the core func

23、tion to support portability for geographic numbers using the “onward routing“ and “all call query“ methods. The signalling requirements for the support of NPCS-1 PNCC-SPP are contained in this supplement. Annex A contains the additional requirements for the support of PNCC-SPP when Intelligent Netwo

24、rk (IN) is involved. 2 References 11 Supplement 3 to Q-series Recommendations, Number portability - Scope and capability set 1 architecture. 3 Terms and definitions For a complete set of definitions and terms, see reference l. Any additional definitions and terms specific to this Supplement will be

25、provided in this clause. 4 Abbreviations For a complete set of abbreviations, see reference i. Any additional abbreviations specific to this Supplement are provided below: cc FE ISC ISDN NDC “A PBX PNCC-SPP POTS ROA Country Code Functional Entity International Switching Centre Integrated Services Di

26、gital Network National Destination Code National Numbering Activity Authority Private Branch Exchange Portable Number Call Control - Service Provider Portability Plain Old Telephone Service Recognized Operating Agency Q series - Supplement 4 (05/98) 1 STD-ITU-T RECMN SERIES Q SUPP 4-ENGL 3998 II 48b

27、259L Ob5b092 37b SDL Specification and Description Language TCAP Transaction Capability Application Part 5 General The PNCC-SPP network capability delivers the following infomation to each exchange in the call path, once routing information has been obtained: 1) the original dialled number; 2) the n

28、ecessary routing information; 3) In addition, for calls originating from a ported numbers, PNCC-SPP delivers the portable number as the calling party number and location-related information about the calling party. The capabilities of the PNCC-SPP build upon the existing SS7 capabilities. Backward c

29、ompatibility is an important requirement. Only the new capabilities, not covered by existing ITU-T Recommendations, required for PNCC-SPP are described here. Number portability affects any service that makes an assumption that an E. 164 directory number indicates the correct network address. NP supp

30、orts the use of numbers that do not directly provide an indication of the network address. NP is used with numbers that have traditionally contained network location information (e.g. numbering plan). To route a call dialled with a non-geographic number (e.g. SOO), the dialled number is often transl

31、ated to a geographic number. How to obtain such a translation is beyond the scope of this Supplement. If the resulting translated geographic number is portable, the PNCC-SPP network capabilities apply. Deployment of NP may require other network capabilities and network interfaces related to: a) data

32、base architecture; b) exchange internal call processing; c) network operations and administration. These network capabilities and interfaces are outside the scope of PNCC-SPP. The functions described in this Supplement support number portability within the national domain and therefore should not be

33、 invoked for outgoing international calls. an indication that NP routing information has been obtained. 5.1 Purpose Number Portability (NP) allows end users of public switched networks to retain their E.164 telephone numbers when they change their service provider (service provider portability), loc

34、ation within a specific geographical area (location portability), or network service (service portability). Table 1 below shows the supported combinations between E.164 numbers and the types of number portability. 2 Q series - Supplement 4 (05/98) STD-ITU-T RECMN SERIES d SUPP 4-ENGL 1998 = 48b2591

35、Ob5b093 202 m Table 1 - Scope of the Number Portability Service E.164 1) Country Code for geographic area 1 Location Portability Service Portability Service Provider Portability Intl National Intl National Intl National I I I Country Code for 13) Networks NOTE - Case 6 is the focus of this Supplemen

36、t. Some aspects of Cases 2 and 12 are also supported. Cases where portability is not possible or not supported by this Supplement are shaded in this Table. Examples: la) +81 3XXXXXXXX lb) +81 120 XXXX XXXX lc) +81 50XXxXXXX 2) +soo XXXXXXXX (Universal International Freephone Number); 3) +881 X XX X

37、(Global Mobile Satellite System). (POTSISDN in Japan: “3“ is area code of Tokyo); (International Direct Dialling of Japan Domestic Freephone Number: “120“ is service access code); (Personal Handyphone System in Japan: 50XX is DN for Personal Handyphone System provider); The number beginning with ICo

38、untry Code for geographic area“ i) in Table 11 is the number that ITU assigns to each country (or countries in an integrated numbering plan). The National Numbering Activity Authority (“A) administers the number following the CC. number that ITU assigns the global service. ITU assigns the two or mor

39、e international Networks (typically ROAS). The following digits identi each international Network. The number beginning with the “Country Code for global service“ 2) in Table 11 is the The number beginning with “Country Code for Networks“ 3) in Table 11 is the number that 5.2 Application PNCC-SPP is

40、 to support the implementation of Service Provider Number Portability in the competitive local service environment. Q series - Supplement 4 (05/98) 3 STD-ITU-T RECMN SERIES Q SUPP 4-ENGL 1998 486259L Ob5b094 I149 6 Description This clause provides general descriptions of the new SS7 capability for t

41、he support of service provider number portability call control. The NP methods for this capability set are the “onward routing“ method and the “all call query method“. These methods are described in the Number Portability - Scope and Capability Set 1 Architecture (see reference i). This capability m

42、ay be used within a single network or across network-interconnect interfaces. PNCC-SPP is a core NP capability which determines that the called number is portable, ascertains the routing information to route the call towards the recipient networlexchange, and incorporates additional information into

43、 the call request to enable the recipient networkexchange to connect the call to the called end user. For calls originating from a ported number, PNCC-SPP delivers the portable number as the calling party number and location related information about the calling party. 6.1 Geographic numbers encode

44、an identifier of the exchange that is serving the end user, this is contained in the numbering plan. Number Portability (NP) permits an end user to move their E. 164 number while retaining their same number from one exchange in a network to another exchange in the same or a different network. Networ

45、ks will therefore require additional capabilities to determine the recipient network or recipient exchange for a number when portability is involved. The use of NP network capabilities is transparent both to the calling end user and to the called end user. 6.1.1 The PNCC-SPP capability: - - Overview

46、 of number portability SS7 capabilities Inter-exchange Portable Number Call Control (PNCC-SPP) Step 1 : determines whether or not the number dialled by the calling user is portable. Step 2: obtains routing information for the initiating exchange to route the call towards the Step 3: routes the call

47、to the recipient exchange and completes call Set-up to the portable recipient network. end user. - 6.1.2 Configuration models The following three configuration models depict the more typical PNCC-SPP network scenarios. Other network scenarios are possible (see reference i for more information). The

48、first configuration (Figure 1) shows separate originating .and initiating networks/exchanges while the second figure (Figure 2) depicts a scenario in which the originating and initiating networks/exchanges are the same. The third scenario (Figure 3) shows a network scenario in which the donor and in

49、itiating networks/exchanges are the same. Also, although not shown explicitly in these figures, there may be one or more Transit networks/exchanges between any of the originating, initiating, donor, and recipient networks/exchanges. The NP database may be internal to the initiating exchange or may be located at another node in the network. In each of these configurations, the exchanges may be in different networks but in the same country. When a call spans interconnecting networks, the configuration applicable for the call depends on bilateral agreements between t