1、STD.ITU-T RECMN a-2931 AMD 1-ENGL 1797 m LiBb259L Ob39b97 219 E INTERNATIONAL TELECOMMUNICATION UNION ITU-T TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU 4.2931 Amendment I (06/97) SERIES Q: SWITCHING AND SIGNALLING Broadband ISDN - B-ISDN application protocols for access signalling Digital Subscr
2、iber Signalling System No. 2 - User-network interface (UNI) layer 3 specification for basic calkonnection control Amendment I ITU-T Recommendation Q.2931 - Amendment I (Previously CCIlT Recommendation) STD-ITU-T RECMN Q-2931 AMD 1-ENGL 1797 a 48b259L Ob37b98 I55 E ITU-T Q-SERIES RECOMMENDATIONS SWIT
3、CHING AND SIGNALLING SIGNALLING IN THE INTERNATIONAL MANUAL SERVICE Q.1-Q.3 INTERNATIONAL AUTOMATIC AND SEMI-AUTOMATIC WORKING Q.4-Q.59 FUNCTIONS AND INFORMATION FLOWS FOR SERVICES IN THE ISDN Q.6W.99 CLAUSES APPLICABLE TO ITU-T STANDARD SYSTEMS Q.100-Q.119 SPECIFICATIONS OF SIGNALLING SYSTEMS No. 4
4、 AND No. 5 Q.120-Q.249 SPECIFICATIONS OF SIGNALLING SYSTEM No. 6 Q.250-Q.309 SPECIFICATIONS OF SIGNALLING SYSTEM R1 Q.310-Q.399 SPECIFICATIONS OF SIGNALLING SYSTEM R2 Q.400-Q.499 DIGITAL EXCHANGES Q.50eQ.599 INTERWORKING OF SIGNALLING SYSTEMS Q.600-Q.699 SPECIFICATIONS OF SIGNALLING SYSTEM No. 7 Q.7
5、0O-Q.849 PUBLIC LAND MOBILE NETWORK Q. lOOO-Q.1 O99 INTERWORKING WITH SATELLITE MOBILE SYSTEMS (2.1 lOO-Q.1199 INTELLIGENT NETWORK Q.1200-Q.1999 Q.2000-Q.2999 BROADBAND ISDN Q.20004.2099 General aspects Signalling ATM adaptation layer (SAAL) Q.2100-Q.2199 Signalling network protocols Q.2200-Q.2299 C
6、ommon aspects of B-ISDN application protocols for access signalling and Q.2600-Q.2699 B-ISDN application protocols for the network signalling network signalling and interworking Q.2700-Q.2899 - - *B ,I appi ocoisfOr4ccess signailing Q.290W.29990 Far further details, please refer to ITU-T List of Rec
7、ommendations. STD.ITU-T RECMN Q.2931 AMD 1-ENGL 1997 m ib2591 Ob39b99 091 sl ITU-T RECOMMENDATION Q.2931 DIGITAL SUBSCRIBER SIGNALLMG SYSTEM NO. 2 - USER-NETWORK INTERFACE (UNI) LAYER 3 SPECIFICATION FOR BASIC CALLKONNECTION CONTROL AMENDMENT 1 Summary Recommendation Q.293 1 provides basic call and
8、connection control for point-to-point connections in a B-ISDN. This amendment to Recommendation 4.2931 has been prepared to allow the creation of Recommendation 4.2961.2 to contain all the information on the encoding of the Broadband bearer capability information element in a manner that is consiste
9、nt with the second edition of Recommendation 1.37 1. This amendment is issued in conjunction with Recommendation 4.2961.2, which is designed to be compatible with implementations conforming to the first edition of Recommendation 1.371 and Recommendation Q.2931 (1995). Within Recommendation 4.2961.2,
10、 the changes from Recommendation 4.293 1 (1 995) are as follows: - octet 5a of the Broadband bearer capability information element was restructured to support ATM transfer capabilities (ATCs) specified in the second edition of Recommendation 1.371. This restructuring is backward compatible with the
11、first edition of Recommendation Q.293 1 (i.e. values of octet 5a defined in the first edition of Recommendation 4.2931 still have the same meaning). These values may be either those used on transmission and reception, those not generated by terminal equipment complying with Recommendation 4.296 1.2,
12、 or those that are reserved. Source Amendment 1 to ITU-T Recommendation 4.2931 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. STD.ITU-T RECMN Q.2931 AMD 1-ENGL 1997 M 4b32593 b39700 b33 = FOREWORD ITU (Internation
13、al Telecommunication Union) is the United Nations Specialized Agency in the field of telecommunications. The ITU Telecommunication Standardization Sector (IN-T) is a permanent organ of the ITU. The IT-T is responsible for studying technical, operating and tariff questions and issuing Recommendations
14、 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 IT-T Study Groups which, in their turn, produce Recommendations on these topics. The app
15、roval of Recommendations by the Members of the IT-T is covered by the procedure 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, t
16、he expression “Administration“ is used for conciseness to indicate both 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 cl
17、aimed Intellectual Property Right. The ITU takes no position concerning the evidence, validity or applicability of claimed Intellectual Property Rights, whether asserted by IT members or others outside of the Recommendation development process. As of the date of approval of this Recommendation, the
18、ITU had/had not received notice of intellectual property, protected by patents, 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 19
19、97 All rights reserved. No part of this 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. Recommendation Q.2931lAmd.l (06/97) a. 11 STD.ITU-T RECMN Q.2931 AMD 1-ENGL 1997
20、W Lidb2591 Ob39701 57T E Introduction This amendment to Recommendation 4.2931 has been prepared to allow the creation of Recommendation 4.2961.2 to contain all the information on the encoding of the Broadband bearer capability information element in a manner that is consistent with the second editio
21、n of Recommendation 1.371. This amendment is issued in conjunction with Recommendation 4.2961.2, which is designed to be compatible with implementations conforming to the first edition of Recommendation 1.371 and Recommendation 4.293 1 (1995). Within Recommendation 4.2961.2, the changes from Recomme
22、ndation 4.2931 (1995) are as follows: - octet 5a of the Broadband bearer capability information element was restructured to support ATM transfer capabilities (ATCs) specified in the second edition of Recommendation 1.371. This restructuring is backward compatible with the first edition of Recommenda
23、tion Q.293 1 (i.e. values of octet 5a defined in the first edition of Recommendation 4.293 1 still have the same meaning). These values may be either those used on transmission and reception, those not generated by terminal equipment complying with Recommendation Q.296 1.2, or those that are reserve
24、d; a new octet, octet 7, of the Broadband bearer capability information element specified in Recommendation 4.2933 is shown. - . Recommendation Q.293UAmd.l (06197) 111 STD-ITU-T RECMN Q-2931 AflD 1-ENGL 1997 = 48b259L Ob37702 40b Recommendation 4.2931 DIGITAL SUBSCRIBER SIGNALLING SYSTEM NO. 2 - USE
25、R-NETWORK INTERFACE (UNI) LAYER 3 SPECIFICATION FOR BASIC CALWCONNECTION CONTROL AMENDMENT 1 (Geneva, 1997) In 4.5.7 (Broadband bearer capability), replace the contents of the subclause (including Figure 4-14/Q.293 1 and Table 4-8/Q.293 1) with “See Recommendation 4.296 1.2“. Recommendation Q.2931/A
26、md.l (06/97) 1 - STD-ITU-T RECMN Q-2731 AND 1-ENGL 1777 LiBb259L Ob37703 342 W Series A Series B Series C Series D Series E Series F Series G Series H Series I Series J Series K Series L Series M Series N Series O Series P Series Q Series R Series S Series T Series U Series V Series X Series Z ITU-T
27、 RECOMMENDATIONS SERIES Organization of the work of the ITU-T Means of expression: definitions, symbols, classification General telecommunication statistics General tariff principles Overall network operation, telephone service, service operation and human fac-xs Non-telephone telecommunication serv
28、ices Transmission systems and media, digital systems and networks Audiovisual and multimedia systems Integrated services digital network Transmission of television, sound programme and other multimedia signals Protection against interference Construction, installation and protection of cables and ot
29、her elements of outside plant TMN and network maintenance: international transmission systems, telephone circuits telegraphy, facsimile and leased circuits Maintenance: international sound programme and television transmission circuits Specifications of measuring equipment Telephone transmission qua
30、lity, 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 communication Programming languages
