ITU-T Q 2951 9-1999 Stage 3 Description for Number Identification Supplementary Services Using B-ISDN Digital Subscriber Signalling System No 2 (DSS 2) - Basic Call Support of ATM fic.pdf

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1、INTERNATIONAL TELECOMMUNICATION UNION ITU-T TELECOMMU N CATION STAN DARD IZATI ON SECTOR OF ITU Qm2951 m9 (1 211 999) SERIES Q: SWITCHING AND SIGNALLING Broadband ISDN - B-ISDN application protocols for access Sig na Hing Stage 3 description for number identification supplementary sewices using 6-IS

2、DN digital subscriber signalling system No. 2 (DSSZ) - Basic call: Support of ATM end system addressing format by Number identification supplementary services ITU-T Recommendation Q.2951.9 (Formerly CCIlT Recommendation) STD.1TI.J-T RECMN Q.2951-9-ENGL 1997 M 48b259L Ob85838 484 m ITU-T Q-SERIES REC

3、OMMENDATIONS SWITCHING AND SIGNALLING SlGNALLING IN THE INTERNATIONAL MANUAL SERVICE FUNCTIONS AND INFORMATION FLOWS FOR SERVICES IN THE ISDN SPECIFICATIONS OF SIGNALLING SYSTEMS No. 4 AND No. 5 SPECIFICATIONS OF SIGNALLING SYSTEM No. 6 SPECIFICATIONS OF SIGNALLING SYSTEM RI SPECIFICATIONS OF SIGNAL

4、LING SYSTEM R2 DIGITAL EXCHANGES INTERWOIUUNG OF SIGNALLING SYSTEMS SPECIFICATIONS OF SIGNALLING SYSTEM No. 7 43 INTERFACE DIGITAL SUBSCRIBER SIGNALLING SYSTEM No. 1 PUBLIC LAND MOBILE NETWORK INTERWORKING WITH SATELLITE MOBILE SYSTEMS INTELLIGENT NETWORK BROADBAND ISDN INTERNATIONAL AUTOMATIC AND S

5、EMI-AUTOMATIC WORKING CLAUSES APPLICABLE TO ITU-T STANDARD SYSTEMS SIGNALLING REQUIREMENTS AND PROTOCOLS FOR IMT-2000 General aspects Signalling ATM adaptation layer (SAAL) Signalling network protocols Common aspects of B-ISDN application protocols for access signalling and network signalling and in

6、terworking B-ISDN application protocols for the network signalling FHSDN application protocols for access sigoalling e For further details, please refer to the list of ITU-T Recommendations Q. 1-4.3 Q.4- Q.59 Q.60-Q .99 Q.100-Q.119 Q. 120-Q.249 Q.25O-Q.309 4.3 10-4.399 Q.40O-Q.499 Q.50O-Q.599 Q.60O-

7、Q.699 4.7004.799 Q.80O-Q.849 Q.85O-Q.999 Q. 10004). 1099 Q. 1 1 OCrQ. 1 199 Q. 1200-Q. 1699 Q. 1700-Q. 1799 Q.200w.2999 Q.200O-Q.2099 4.2 i 004.2 199 Q.220O-Q.2299 Q.260O-Q.2699 4.2700-4.2899 Q.29-Q.2999 STDmITU-T RECMN Q.2951-9-ENGL 1997 4862573 Ob85639 310 ITU-T Recommendation Q.2951.9 Stage 3 des

8、cription for number identification supplementary services using B-ISDN digital subscriber signalling system No. 2 (DSS2) - Basic call: Support of ATM end system addressing format by Number identification supplementary services Summary This Recommendation belongs to the DSS2 family of ITU-T Recommend

9、ations and specifies extensions to Recommendations 4.295 1.1, Q.295 1-2, 4.295 1.3 and 4.295 1.5 to detail the additional DSS2 traffic related protocol procedures and functions needed to support the use of ATM end system addresses within the DDI, MSN, CLIP and COLP supplementary services. Source ITU

10、-T Recommendation 4.2951.9 was prepared by ITU-T Study Group 11 (1997-2000) and approved under the WTSC Resolution 1 procedure on 3 December 1999. STD e ITU-T RECMN Q-2951=9-ENGL 2999 W 4Bb257L 0b85840.032 FOREWORD The International Te.ecommunication Union (ITU) is the United Nations specialized age

11、ncy in the field of telecommunications. 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 them with a view to standardizing telecommunications on a worldwide

12、 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 turn, produce Recommendations on these topics. The approval of ITU-T Recommendations is covered by the procedure laid down in WTSC

13、 Resolution 1. In some areas of information technology which fall within IT-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 a telecommunication administra

14、tion and a recognized operating agency. MTELLECTAL 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

15、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, IT had not received notice of intellectual property, protected by patents, which may be required to implement this

16、Recommendation. However, impiementors are cautioned that this may not represent the latest information and are therefore strongly urged to consult the TSB patent database. o ITU 2001 Ali rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electroni

17、c or mechanical, including photocopying and microfilm, without permission in writing from the ITU. 1 2 3 4 5 !jTD.ITU-T RECMN Q.295Lm9-ENGL 1999 48b259L Ob85841 T79 m CONTENTS 6 6.1 6.2 6.3 7 8 9 9.1 9.2 9.3 Scope References Definitions Abbreviations . Description . Operational requirements . Provis

18、iodwithdrawal Requirements on the originating network side . Requirements on the terminating network side State definitions Coding requirements Signalling requirements at the coincident SLB and TLB reference point Delivery of Called party number to the called user in case of MSN or DDI . Actions at

19、the originating local exchange . CLIP . 9.2.1 9.2.2 Actions at the destination local exchange . 9.2.3 Interworking with other networks . COLP 9.3.1 Actions at the destination local exchange . 9.3.2 Actions at the originating local exchange . 9.3.3 Interworking with other networks . Page i 1 2 2 2 3

20、3 3 3 4 4 5 5 5 5 5 6 STD-ITU-T RECMN Q-2951*7-ENGL 1997 4862573 Ob85842 705 ITU-T Recommendation 4.2951.9 Stage 3 description for number identification supplementary services using B-ISDN digital subscriber signalling system No. 2 (DSSL) - Basic call: Support of ATM end system addressing format by

21、Number identification supplementary services (Geneva, 1999) 1 Scope Recommendation 4.295 1 covers the support of the number identification supplementary services for the Broadband Integrated Services Digital Network (B-ISDN) at the TB reference point or coincident SB and TB reference point as define

22、d in Recommendation 1.413 by means of the Digital Subscriber Signalling System No. 2 (DSS2). This Recommendation defines the DSS2 protocol procedures, formats and functions needed to support the use of ATM end system addresses. This Recommendation is part of the DSS2 family of ITU-T Recommendations,

23、 and specifies extensions to Recommendations 4.2951.1, 4.295 1.2, 4.2951.3 and 4.2951.5. It does not repeat states, information elements, messages and procedures contained therein, but only specifies extensions related to the support of ATM end system addresses. 2 References The following ITU-T Reco

24、mmendations and other references contain provisions which, through reference in this text, constitute provisions of this Recommendation. At the time of publication, the editions indicated were valid. All Recommendations and other references are subject to revision; all users of this Recommendation a

25、re therefore encouraged to investigate the possibility of applying the most recent edition of the Recommendations and other references listed below. A list of the currently valid ITU-T Recommendations is regularly published. ITU-T Recommendation 4.293 1 (1 999, Digital Subscriber Signalling No. 2 -

26、User-Network Interface (UNQ layer 3 specijcation for basic callkonnection control. ITU-T Recommendation 4.295 1.1 (1 995), Stage 3 description for number identification supplementary services using B-ISDN digital subscriber Signalling System No. 2 (DSS2) - Basic call: Direct-Dialling-In (DDr). ITU-T

27、 Recommendation 4.295 1.2 (1 995), Stage 3 description for number identification supplementary services using B-ISDN digital subscriber Signalling System No. 2 (DSS2) - Basic call: Multiple Subscriber Number (MSN). ITU-T Recommendation 4.295 1.3 (1 993, Stage 3 description for number identification

28、supplementary services using B-ISDN digital subscriber Signalling System No. 2 (DSS2) - Basic call: Calling Line Identifcation Presentation (CLIP). ITU-T Recommendation 4.295 1.4 (1 995), Stage 3 description for number identification supplementary services using B-ISDN digital subscriber Signalling

29、System No. 2 (DSS2) - Basic call: Calling Line Identijication Restriction (CLIR). ITU-T Recommendation 4.295 1.5 (1 995), Stage 3 description for number identiJication supplementary services using B-ISDN digital subscriber Signalling System No. 2 (DSS2) - Basic call: Connected Line Identifzcation Pr

30、esentation (COLP). STD.1TU-T RECflN d.2751.9-ENGL LTqq = 4862591 Ob85843 841 = 7 ITU-T Recommendation Q.295 1.6 (1999, Stage 3 description for number identijcation supplementary services using B-ISDN digital subscriber Signalling System No. 2 (DSS2) - Basic call: Connected Line IdentiJication Restri

31、ction (COLR). ITU-T Recommendation E. 191 (2000), B-ISDN addressing. ITU-T Recommendation 4.293 1, Amendment 4 (1 999). S 9 3 Definitions This Recommendation defines the following terms: 3.1 ATM end system address: See Recommendation E.191 SI. 3.2 address presentation format: Indicates the address f

32、ormat to be used by the network for the delivery of the address information to the user in the Calling party number, the Called party number, and the Connected number information elements based on a subscription, the three values are native E. 164 format, AESA format, and E. 164 or AESA format. 4 Ab

33、breviations This Recommendation uses the following abbreviations: AESA ATM end system address AESA (E. 164) CdPN Called party number CgPN Calling party number COPN Connected party number DCC Data country code ICD International code designator ID1 Initial domain identifier AESA containing an E. 164 a

34、ddress in the ID1 field (see E. 191 8) 5 Description The ATM end system addressing capability provides for the indication of addresses in the AESA format. A number assigned to an access can be either in the native E.164 format or in the AESA format (e.g. E.164, DCC or ICD). In case of MSN a set of n

35、umbers consisting of native E.164 addresses andor AESAs (e.g. E.164, DCC and ICD) can be assigned to a given access. A subscription option, called “address presentation format“ in the following, is relevant for the delivery of the address information in the network-to-user direction in the Calling p

36、arty number, the Called party number, and the Connected number information elements. This Recommendation is complementary to the specification of the DDI, MSN, CLIP, and COLP supplementary services. STDeITU-T RECMN dm295L.9-ENGL 1999 48b259L Ob65844 768 6 Operational requirements 6.1 Provision/withd

37、rawa ATM end system addressing shall be provided after prior arrangement with the network operator and shall be withdrawn on the subscribers request or for administrative reasons. A subscription option defines the address presentation format to be used for the delivery of the address information in

38、the network-to-user direction in the Calling party number, the Called party number, and the Connected number information elements, i.e. this subscription option is relevant only in conjunction with the DDI, MSN, CLIP, and COLP supplementary services. 6.2 The procedures according to clause 9 shall ap

39、ply. Requirements on the originating network side 6.3 The procedures according to clause 9 shall apply. Requirements on the terminating network side 7 State definitions No additional state definitions are required. 8 Coding requirements The extensions to the coding of the Calling party number and th

40、e Called party number information elements are defined in Amendment 4/Q.2931 9 (subclauses 4.5.13/Q.293 1 and 4.5.1 l/Q.2931). The extensions to the Connected number information element defined in 4.2951.5 are by reference defined in Q.2931 i. 9 Signalling requirements at the coincident SLB and TLB

41、reference point 9.1 If the called user has subscribed to either MSN or DDI, the SETUP message sent to the called user has to include the Called party number information element. Table 1 specifies in which format the called party number is sent to the called user depending on the applicable combinati

42、ons of received called party number parameter(s) and address presentation format subscribed at the destination UNI. Delivery of Called party number to the called user in case of MSN or DDl STD-ITU-T RECMN Qm2951.9-ENGL 1999 4862571 Ob85845 bL4 Table l/Q.2951.9 - Delivery of Called party number to th

43、e called user CdPN parameter) available for presentation at the destination UNI Address presentation format at the destination UNI (according to subscription option) E.164 AESA I E.164 or AESA CdPN (E. 164) CdPN (E.164) AESA for CdPN (E. 164) (Note I) (Note 2) (Note I) (Note 1) no no no Yes Yes .2.

44、AESA for CdPN (others) 1 (Note 3) NOTE 2 - Send called party number information to the called user by embedding the native E.164 address into AESA format. In case of overlap, receiving the digits shall be collected by the network using a network specific timer (range 10 - 20 s). On expiry of this ti

45、mer, the digits collected shall be sent to the called user according to the procedures in 5.2.UQ.293 1. NOTE 3 - “This setting of the Address presentation format is not appropriate if non-E.164 AESAs are assigned to an access.“ yes Send called party number information to the called user in the forma

46、t received. no Do not send called party number information to the called user in the format received. embed Native E.164 address embedded into AESA format. Yes Yes 9.2 CLIP The use of E.164 addresses within the CLIP supplementary service is specified in Q.2951.3 4. If AESA is used based on a subscri

47、ption, this Recommendation complements 4.2951.3 4 and the following procedures replace those parts of 4.2951.3 4 which are valid only for a addressingnumbering plan identification set to E. 1 64. 9.2.1 The actions at the originating local exchange when a special arrangement applies as well as when a

48、 special arrangement does not apply are summarized in Figure 1 in SDL form. NOTE - In order to show the relationship to the procedures without the use of AESA, Figure 1 includes partly also the handling of the native E.164 addresses as specified in 4.2951.3 4. In addition the following rules shall a

49、pply: Actions at the originating local exchange e For screening of AESA (E.164) only the E. 164 number in the ID1 part shall be screened. a The selector information (last octet of an AESA) shall not be considered for screening. The handling of the presentation indicator provided in the Calling party number information element shall be according to the CLIR supplementary service as specified in Q.295 1.4 5. STD-ITU-T RECMN Q*295L*S-ENGL 1999 W 4Bb259L Ob8584b 550 9.2.2 The delivery of the calling party number information to the called user depen