1、 STD-ITU-T RECMN Q.2751 CORR 1-ENGL 1998 W 48b2571 0b.53920 b4b W INTERNATIONAL TELECOMMUNICATION UNION ITU-T TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU Q.2951 Corrigendum I (05/98) SERIES Q: SWITCHING AND SIGNALLING Broadband ISDN - B-ISDN application protocols for access signalling Stage 3 de
2、scription for number identification supplementary services using B-ISDN Digital Subscriber Signalling System No. 2 (DSS 2) - Basic call Corrigendum I ITU-T Recommendation Q.2951 - Corrigendum 1 (Previously CCIT Recommendation) STD-ITU-T RECMN d.2951 CORR 1-ENGL 1778 = 9862571 Ob53721 582 ITU-T Q-SER
3、IES RECOMMENDATIONS SWITCHING AND SIGNALLING SIGNALLING 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
4、 SIGNALLING SYSTEM R2 DIGITAL EXCHANGES INTERWORKING OF SIGNALLING SYSTEMS SPECIFICATIONS OF SIGNALLING SYSTEM No. 7 DIGITAL SUBSCRIBER SIGNALLING SYSTEM No. I PUBLIC LAND MOBILE NETWORK INTERWORKING WITH SATELLITE MOBILE SYSTEMS INTELLIGENT NETWORK BROADBAND ISDN General aspects Signalling ATM adap
5、tation layer (SAAL) Signalling network protocols Common aspects of B-ISDN application protocols for access signalling and network signalling and interworking B-ISDN application protocols for the network signalling B-ISDN application protocols for access signalling INTERNATIONAL AUTOMATIC AND SEMI-AU
6、TOMATIC WORKING CLAUSES APPLICABLE TO ITU-T STANDARD SYSTEMS Q. 1 -Q. 3 Q .4-Q. 59 Q.60-Q.99 Q.100-Q.119 Q. 1 20-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. 1OOO-Q. 1 O99 Q.l I OO-Q. 1199 Q.1200-Q. I999 Q.2000-Q.2999 Q.2000-Q.2099 Q.2100-Q.2199 Q.
7、2200-Q.2299 Q.2600-Q.2699 Q.2700-Q.2899 4.2900-4.2999 For further details, please refer to ITU-T List of Recommendations. ITU-T RECOMMENDATION Q.2951 STAGE 3 DESCRIPTION FOR NUMBER IDENTIFICATION SUPPLEMENTARY SERVICES USING B-ISDN DIGITAL SUBSCRIBER SIGNALLING SYSTEM NO. 2 (DSS 2) - BASIC CALL CORR
8、IGENDUM 1 Summary This Corrigendum is issued in order to correct editorial and minor technical errors contained in ITU-T Recommendation Q.295 1 (1 995) - ”Stage 3 description for number identification supplementary services using B-ISDN Digital Subscriber Signalling System No. 2 (DSS 2) - Basic call
9、”, Source Corrigendum 1 to ITU-T Recommendation 4.2951, was prepared by ITU-T Study Group 11 (1997-2000) and was approved under the WTSC Resolution No. 1 procedure on the 15th of May 1998. FOREWORD ITU (International Telecommunication Union) is the United Nations Specialized Agency in the field of t
10、elecommunications. 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 basis. The W
11、orld Telecommunication Standardization Conference (WTSC), which meets every four years, establishes the topics for study by the ITU-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 procedure la
12、id 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 a telecomm
13、unication 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 the eviden
14、ce, 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 had received notice of intellectual property, protected by patents, which may
15、 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 utilized in any
16、form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing fiom the ITU. 11 Recommendation Q.2951Kor.l (05198) Recommendation Q.2951 STAGE 3 DESCRIPTION FOR NUMBER IDENTIFICATION SUPPLEMENTARY SERVICES USING B-ISDN DIGITAL SUBSCRIBER SIGNALLIN
17、G SYSTEM NO. 2 (DSS 2) - BASIC CALL CORRIGENDUM 1 (Geneva, 1998) a) Where the addressing/numbering plan identification equals ISDN/telephony numbering plan (see Recommendation E.164) the type of number is included in the called party number information element sent to the called user and shall be co
18、ded as: - - The two bullet items of the 2ndparagraph of 1.1 O. 1.1 are replaced by: unknown (see Table 4-1 2/Q.293 1, Note 2 against “Type of Number“); or subscriber number, national number or international number (See Table 4-1 2/Q.293 1, Note 3 against “Type of Number“). The first and the Indparag
19、raph of 2.8 are replaced by: b) . The multiple subscriber number of the called user is coded in the called party number information element as specified in 4.5.1 UQ.2931. The multiple subscriber number of the calling user is coded in the calling party number information element as specified in 4.5.1
20、314.293 1. c) Where the addressing/numbering plan identification equals ISDN/telephony numbering plan (see Recommendation E. 164) or unknown the type of number indicated in the calling party number information element sent to the network shall be coded as: - - The two bullet items of the 2ndparagrap
21、h of 2.9.1.1 are replaced by: unknown (see Table 4-14/Q.293 1, Note 2 against “Type of Number“); or subscriber number, national number or international number (see Table 4- 14/Q.293 1, Note 3 against “Type of Number“). 4 The de$nition of isewed user“ in 3.3.3 is replaced by: 3.3.3 served user: The u
22、ser of a particular ISDN number which has been subscribed to the presentation of the calling line identification information in association with incoming calls. The served user is also known as the called user. e) Note 1 in 3.9.2.1.1.2 is replaced by: NOTE 1 - Some networks may accept a full ISDN nu
23、mber in a calling party number information element with the addition of a prefix or escape digits to the number digits field and the type of number field set to “unknown“. J In the 6th paragraph of 3.9.2.3. I the text relating to the setting of the presentation indicator shall be changed as follows:
24、 . The presentation indicator shall be set to number not available, and . Recommendation Q.295UCor.l (05/98) 1 a, NOTE - If the presentation indicator in the calling party number information element received by the user is set to number not available or presentation restricted, . h) In the first par
25、agraph of Yntemorking B-ISDN-N-ISDN“, 3. I I, replace the DSS 1 called party by the DSS I calling party. i) The definition of “served user“ in 4.3.3 is replaced by: 4.3.3 served user: The user of a particular ISDN number which has been subscribed to the restriction of the calling line identification
26、 information (on a permanent or on a per-call basis) in association with outgoing calls. The served user is also known as the calling user. j) In the first paragraph of “Interworking B-ISDN+N-ISDN“, 4.1 I, replace the DSS I called party by the DSS 1 calling party. k) The definition of “served user“
27、in 5.3.3 is replaced by: 5.3.3 served user: The user of a particular ISDN number which has been subscribed to the presentation of the connected line identification information in association with outgoing calls. The served user is also known as the calling user. I) In Figure 5-1 of 5.8.1, mark the N
28、umber digits field of the Connected number information element as optional field by adding an asterisk against octet 6. m) In 5.8.1, the Note against Figure 5-1 is replaced by: NOTE - See Table 4-14/Q.2931 for the meaningkoding of the fields in octet 5,5a, 6, etc. n) . The presentation indicator sha
29、ll be set to number not available, and . 0) The Note at the end of 5.9.2. I. I is changed as follows: NOTE - If the presentation indicator in the connected number information element received by the user is set to number not available or presentation restricted, P) When a CONNECT message is received
30、 from the connected user, the network shall check to see if the connected number and connected subaddress information element are included. 4) If the connected subaddress information element is available, it shall be passed transparently through the network. The actions at the destination local exch
31、ange when a special arrangement does not apply, are summarized in Table 5-2. r) If the connected number information element is included, the network shall set the screening indicator forwarded to the calling user to user provided, not screened. The paragraph at the bottom of Table 5-3 (“lfthe connec
32、ted number . user provided, not screenedl) is deleted. The heading of the three right hand side columns in Table 5-3 is replaced by: The Note at the end of 3.9.2.3.1 is changed as follows: In the 6th paragraph of 5.9.2.1.1 the text relating to the setting of the presentation indicator shall be chang
33、ed as follows: The 3rd paragraph of 5.9.2.3.1.2 is replaced by: The last paragraph of 5.9.2.3.1.2 is replaced by: Add the following text at the bottom of 5.9.2.3.1.3: o 2 Recommendation Q.2951Kor.l (0998) STD-ITU-T RECMN a-2951 CORR 1-ENGL 1798 = Li8b2591 Ob5392b 0bi Information provided by the netw
34、ork to the calling user. 4 The dejnition of “served user“ in 6.3.3 is replaced by: 6.3.3 served user: The user of a particular ISDN number which has been subscribed to the restriction of the connected line identification information (on a permanent or on a per-call basis) in association with incomin
35、g calls. The served user may also be known as the connected user. Recommendation Q.2951lCor.l (0998) 3 STD-ITU-T RECMN Q*EqSL CORR 1-ENGL 1998 W iAh2593 Ob53727 TTO W . . #cries A B leries C leries D ieries E ;eries F ;enes G jeries H Series I Series J Series K Series L Series M Series N Series O Se
36、ries P Series Q Series R Series S Series T Series U Series V Series X Series Y Series Z ITU-T RECOMMENDATIONS SERIES Organization of the work of the ITU-T Means of expression: definitions, symbols, classification General telecommunication statistics General tariff principles Overall network operatio
37、n, telephone service, service operation and human factors Non-telephone telecommunication services Transmission systems and media, digital systems and networks Audiovisual and multimedia systems Integrated services digital network Transmission of television, sound programme and other multimedia sign
38、als Protection against interference Construction, installation and protection of cables and other elements of outside plant TMN and network maintenance: international transmission systems, telephone circuits telegraphy, facsimile and leased circuits Maintenance: international sound programme and tel
39、evision transmission circuits Specifications of measuring equipment Telephone transmission quality, telephone installations, local line networks Switching and signalling Telegraph transmission Telegraph services terminal equipment Terminals for telematic services Telegraph switching Data communication over the telephone network Data networks and open system communications Global information infrastructure Programming languages Printed in Switzerland Geneva, 1998
