1、 ATIS-0326600.2005 STRUCTURE FOR THE IDENTIFICATION OF TELECOMMUNICATIONS CIRCUITS FOR INFORMATION EXCHANGE AMERICAN NATIONAL STANDARD FOR TELECOMMUNICATIONS ATIS is a technical planning and standards development organization that is committed to rapidly developing and promoting technical and operat
2、ions standards for the communications and related information technologies industry worldwide using a pragmatic, flexible and open approach. Over 1,100 participants from more than 350 communications companies are active in ATIS 21 industry committees, and its Incubator Solutions Program. AMERICAN NA
3、TIONAL STANDARD Approval of an American National Standard requires review by ANSI that the requirements for due process, consensus, and other criteria for approval have been met by the standards developer. Consensus is established when, in the judgment of the ANSI Board of Standards Review, substant
4、ial agreement has been reached by directly and materially affected interests. Substantial agreement means much more than a simple majority, but not necessarily unanimity. Consensus requires that all views and objections be considered, and that a concerted effort be made towards their resolution. The
5、 use of American National Standards is completely voluntary; their existence does not in any respect preclude anyone, whether he has approved the standards or not, from manufacturing, marketing, purchasing, or using products, processes, or procedures not conforming to the standards. The American Nat
6、ional Standards Institute does not develop standards and will in no circumstances give an interpretation of any American National Standard. Moreover, no person shall have the right or authority to issue an interpretation of an American National Standard in the name of the American National Standards
7、 Institute. Requests for interpretations should be addressed to the secretariat or sponsor whose name appears on the title page of this standard. CAUTION NOTICE: This American National Standard may be revised or withdrawn at any time. The procedures of the American National Standards Institute requi
8、re that action be taken periodically to reaffirm, revise, or withdraw this standard. Purchasers of American National Standards may receive current information on all standards by calling or writing the American National Standards Institute. ATIS-0326600.2005, Structure for the Identification of Tele
9、communications Circuits for Information Exchange Is an American National Standard developed by the Coding and Language Data Representation Subcommittee (CLDR) Subcommittee under the ATIS Telecom Management and Operations Committee (TMOC). Published by Alliance for Telecommunications Industry Solutio
10、ns 1200 G Street, NW, Suite 500 Washington, DC 20005 Copyright 2005 by Alliance for Telecommunications Industry Solutions All rights reserved. No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission of the publis
11、her. For information contact ATIS at 202.628.6380. ATIS is online at . Printed in the United States of America. ATIS-0326600.2005 (Revision of T1.266-2000) American National Standard for Telecommunications STRUCTURE FOR THE IDENTIFICATION OF TELECOMMUNICATIONS CIRCUITS FOR INFORMATION EXCHANGE Secre
12、tariat Alliance for Telecommunications Industry Solutions Approved February 14, 2005 American National Standards Institute, Inc. Abstract This standard provides the code and format structures necessary for identification of telecommunications circuits and describes the code structures with various c
13、ombinations of data units represented within those structures. This standard contains clauses that cover its purpose and scope, described format structures, and data elements for message trunks and message trunk groups and for special services circuits. It also contains definitions and references. A
14、TIS-0326600.2005 ii FOREWORD The information contained in this Foreword is not part of this American National Standard (ANS) and has not been processed in accordance with ANSIs requirements for an ANS. As such, this Foreword may contain material that has not been subjected to public review or a cons
15、ensus process. In addition, it does not contain requirements necessary for conformance to the Standard. The Alliance for Telecommunication Industry Solutions (ATIS) serves the public through improved understanding between carriers, customers, and manufacturers. The Telecom Management and Operations
16、Committee (TMOC) - formerly T1M1 -develops operations, administration, maintenance and provisioning standards, and other documentation related to Operations Support System (OSS) and Network Element (NE) functions and interfaces for communications networks - with an emphasis on standards development
17、related to U.S.A. communication networks in coordination with the development of international standards. This document is entitled Structure for the Identification of Telecommunications Circuits for Information Exchange. This American National Standard provides the code and format structures necess
18、ary for identification of telecommunications circuits. This standard contains clauses that cover its purpose and scope and that describe data units and format structures for representing message trunks and message trunk groups and for special services circuits. The code structure and format portion
19、of this standard is compatible with the CLCITM-MSG and CLCITM-S/S code designs for the identification of circuits. The CLCI-MSG and CLCI-S/S codes have been recognized as de facto telecommunications industry standards for the interchange of information for the provisioning and maintenance of circuit
20、s. Requirements are designated by the word shall, while recommendations use the word should. Requirements specify the minimum format and structure of codes required for information exchange between telecommunications service providers. This standard is intended for use in conjunction with standards
21、T1.251-2001 (Version Two), Service Provider Identification Codes, and T1.253-1999, Information Interchange - Code description and Codes for the Identification of Location Entities for the North American Telecommunications System. Footnotes are not officially part of this standard. Suggestions for im
22、provement of this document are welcome. They should be sent to the Alliance for Telecommunications Industry Solutions, TMOC Secretariat, 1200 G Street NW, Suite 500, Washington, DC 20005. At the time it approved this document, TMOC, which is responsible for the development of this Standard, had the
23、following members: M. Fargano, TMOC Chair R. Roman, TMOC Vice-Chair S. Carioti, ATIS Disciplines S. Barclay, ATIS Secretariat C. Underkoffler, ATIS Chief Editor P. Levine, TMOC Technical Editor TMCOMMON LANGUAGE is a registered trademark and CLCI is a trademark of Telcordia Technologies, Inc. ATIS-0
24、326600.2005 iii Organization Represented Name of Representative Alcatel USA Inc. Ken Biholar Atahan Tuzel (Alt.) AT its length and generic representation. 1This document is available from the Alliance for Telecommunications Industry Solutions (ATIS), 1200 G Street N.W., Suite 500, Washington, DC 200
25、05. 2This document is available from the International Telecommunications Union. ATIS-0326600.2005 2 3.2 data: A representation of facts, concepts, or instructions that are collected, organized, recorded, processed, and stored in a retrievable form suitable for communication, interpretation, or proc
26、essing by human or automated means. This definition refers to a group of facts taken as a unit; thus it is used with a singular verb. 3.3 data composite: A collection of data elements treated as a unit. 3.4 data element: A single unit of data that in a certain context is considered indivisible. It c
27、annot be decomposed into more fundamental segments of data that have useful meanings within the business. 3.5 data unit: A single kind of data for which the identification and description are identical for all occurrences. It may be a data element or a data composite. 3.6 format structure: A combina
28、tion of data units grouped in a prescribed sequence. 3.7 leg: A loop termination of a multipoint circuit that links a bridge to the end user location. 3.8 World Zone 1: Multiple countries which have an integrated numbering plan with the Country Code value “1”, as per ITU-T Rec. E.164. 4 GENERAL Each
29、 data element shall consist of sequences of characters, each character being either an alphabetic (A-Z) or numeric (0-9). (See 6.2.1, 6.2.2, and 6.2.3 for additional requirements for symbols.) In the format structures of clause 6, character positions that require alphabetic, numeric or either alphab
30、etic or numeric characters are represented by “A”, “N” and “A/N” respectively. The alphabetic characters shall be considered as case insensitive; that is, there shall be no distinction made between upper and lower case letters. However, it is recommended that the code be represented with upper case
31、letters. 5 DATA UNITS Clause 5 of this standard describes data elements and data composites that are used to construct the message trunk and special services circuit identification code formats of clause 6. 5.1 Message trunk data units 5.1.1 Trunk number A serial number type code that identifies a s
32、pecific trunk in a trunk group. This data element shall consist of one to four numeric characters. 5.1.2 Traffic class code A standardized code that designates an engineering categorization - e.g., grade of service, alternate route. This data element consists of two alphabetic characters. 5.1.3 Offi
33、ce class code A standardized code that designates the highest level of switching performed by the traffic units or offices terminating the trunk or trunk group - e.g., grade of service, alternate route. This data element consists of two characters, one for each end of the trunk or trunk group, and w
34、here each character may be alphabetic or numeric. ATIS-0326600.2005 3 5.1.4 Traffic use code A standardized code that designates the type of traffic offered to the trunk group - e.g., inter-end office, tandem access, directory assistance. This data element consists of two alphabetic characters. 5.1.
35、5 Trunk-type modifier code A standardized code that indicates specialized use of the trunk or trunk group - i.e., only a portion of traffic, or enhanced information, is carried over the trunk or trunk group, such as coin, non-coin, bit rate. This data element consists of one to seven characters, eac
36、h of which may be alphabetic or numeric. 5.1.6 Location A code A standardized code that uniquely identifies the location of facility terminal A (i.e., lower in alphabetic sequence of the two facility terminal location codes), which is the telecommunications service company site at which equipment or
37、 personnel are located, the function of equipment or personnel at the site, or a customers presence at a location at which network elements or network systems equipment exists. This data composite shall consist of eleven characters, as allowed by the requirements of T1.253-1999. Complete definition
38、of this data composite may be found in T1.253-1999. 5.1.7 Location Z code A standardized code that uniquely identifies the location of facility terminal Z (i.e., higher in alphabetic sequence of the two facility terminal location codes, for which the description is equivalent to that of the Location
39、 A Code in 5.1.6). 5.1.8 Address signaling code A standardized code that designates the type of signals used to direct a call to its destination - e.g., multifrequency, common channel signaling, switching system 7. This data element consists of two characters, each of which may be alphabetic or nume
40、ric. The first character is the type of signaling outgoing from Office A. The second character is the type of signaling outgoing from Office Z, or is a “-” (hyphen) for one-way groups. 5.2 Special services circuit data units 5.2.1 Prefix A non-standard code populated according to the special service
41、s circuit coding methodology of each carrier or network operator assigning the circuit identification. This data element consists of two characters, each of which may be alphabetic or numeric. 5.2.2 Service code A standardized code that represents a tariff offering that requires special services cir
42、cuit provisioning. This data element consists of two characters, each of which may be alphabetic or numeric. ATIS-0326600.2005 4 5.2.3 Modifier A standardized code that designates the jurisdiction, networking application, and additional technical information of the service identified in the service
43、code of 5.2.2. This data element consists of two characters, each of which may be alphabetic or numeric. 5.2.4 Numbering Plan Area (NPA) code A standardized code that identifies the NPA associated with the telephone number of a special services circuit. This data element is used in the telephone num
44、ber format only, and consists of three numeric characters. 5.2.5 Central Office (CO) unit code A standardized code that identifies the CO number associated with the telephone number of a special services circuit. This data element is used in the telephone number format only, and consists of three nu
45、meric characters. 5.2.6 Line number code A standardized code that identifies the line number associated with the telephone number of a special services circuit. This data element is used in the telephone number format only, and consists of four numeric characters. 5.2.7 Extension number/trunk code A
46、 non-standard code used to record extension numbers/trunk codes associated with the telephone number of a special services circuit. This data element is used in the telephone number format only, and consists of one to five characters, each of which may be alphabetic or numeric. 5.2.8 Country code Th
47、e combination of one, two, or three digits used to identify a specific country, countries in an integrated numbering plan, or a specific geographic area, as prescribed in ITU-T Rec. E.164. 5.2.9 National Significant Number (NSN) The National Significant Number (NSN) consists of the National Destinat
48、ion Code (NDC) followed by the Subscriber Number (SN). The function and format of the National Significant Number is nationally determined. The ITU-T recommends that the maximum number of digits of the National Significant Number should be equal to 12, or 15-n, where n is the number of digits of the
49、 Country code. The National Destination Code identifies a numbering area within a country (or group of countries included in one integrated numbering plan or a specific geographic area) and/or network/services. The Subscriber Number identifies a subscriber in a geographic area. The structure and functionality of the Subscriber Number is determined by the network operator. ATIS-0326600.2005 5 5.2.10 Segment name A serial number type code that uniquely identifies each termination point of a special services circuit, when the circuit has more than two termi
