1、 AMERICAN NATIONAL STANDARD FOR TELECOMMUNICATIONS ATIS-0300097.2013 STRUCTURE FOR THE IDENTIFICATION OF COMMUNICATIONS CONNECTIONS FOR INFORMATION EXCHANGE As a leading technology and solutions development organization, ATIS brings together the top global ICT companies to advance the industrys most
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3、ast-track development lifecycle from design and innovation through solutions that include standards, specifications, requirements, business use cases, software toolkits, and interoperability testing. ATIS is accredited by the American National Standards Institute (ANSI). ATIS is the North American O
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5、 For more information, visit . AMERICAN NATIONAL 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 th
6、e ANSI Board of Standards Review, substantial 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 ef
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8、forming to the standards. The American National 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 t
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11、mer mandatory and recommendation. The mandatory requirements are designated by the word shall and recommendation by the word should. Where both a mandatory requirement and a recommendation are specified for the same criterion, the recommendation represents a goal currently identifiable as having dis
12、tinct compatibility or performance advantages. This standard contains two annexes which are for information only and is not considered part of this standard. Suggestions for improvement of this standard are welcome. These should be sent to the Alliance for Telecommunications Industry Solutions, TMOC
13、, 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 following leadership: T.Barrett, TMOC Chair AT (2) a facility assembly; or (3) combinations of carrier facility systems and facility ass
14、emblies. 3.3 Channel: A unit of assignable inventory within a carrier facility system. Channels may sometimes be referred to as assignment slots or time slots. 3.4 Code Structure: The basic characteristics of a code; its length and generic representation. 3.5 Data: A representation of facts, concept
15、s, or instructions that are collected, organized, recorded, processed, and stored in a retrievable form suitable for communication, interpretation, or processing 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. 3.6 Data Co
16、mposite: A collection of data elements treated as a unit. 3.7 Data Element: A single unit of data that in a certain context is considered indivisible. It cannot be decomposed into more fundamental segments of data that have useful meanings within the business. 3.8 Data Unit: A single kind of data fo
17、r which the identification and description are identical for all occurrences. It may be a data element or a data composite. 3.9 Delimiter: Values which provide a means to identify the beginning and end of adjacent fields for mechanized systems, and to simplify overall code readability. While the spe
18、cific values may differ from system to system, acceptable values are either an asterisk (*), virgule (/), or a period (.). 3.10 Facility: A physical or derived communications path between two locations, which can be intraoffice as well as interoffice. A facility is bounded by its transmission signal
19、 input to its equivalent transmission signal output, or its 1This document is available from the U.S Government Printing Office (GPO). 2This document is available from the Alliance for Telecommunications Industry Solutions (ATIS) at . 3This document is available from the Alliance for Telecommunicati
20、ons Industry Solutions (ATIS) at . 4This document is available from the International Telecommunication Union (ITU). ATIS-0300097.2013 3 point of termination. A facility has the same capacity at each end and normally carries assignable channels, pairs, or time slots. 3.11 Facility Assembly: A group
21、of interconnected equipment and transmission media uniquely identified and dedicated to a specific type of service. 3.12 Format Structure: A combination of data units grouped in a prescribed sequence. 3.13 Leg: A loop termination of a multipoint circuit that links a bridge to the end user location.
22、3.14 Open Wire: Non-insulated metallic conductors that are tied to insulators usually on cross arms, which are bolted to poles. 3.15 Pair: Two conductors used to form a transmission path. 3.16 Physical Facility: A transmission facility that consists only of a real and tangible interconnecting link b
23、etween its terminals, such as open wire, fiber optic, or metallic cable (not a derived path). 3.17 Time Slot: A cyclic time period that can be recognized and uniquely defined. 3.18 World Zone 1: Multiple countries which have an integrated numbering plan with the Country Code value “1”, as per Recomm
24、endation ITU-T E.164. 4 General Each data element shall consist of sequences of characters, each character being either an alphabetic (A-Z) or numeric (0-9). (See 5.3.3 and 6.2.2 for additional requirements for symbols.) In the format structures of clause 6, designation is provided for character pos
25、itions that require alphabetic, numeric, or either alphabetic or numeric characters. 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
26、 case letters. Within Annex A, the indication of is representative of blank positions within the depicted formats. 5 Date Units Clause 5 of this standard describes data elements and data composites that are used to construct the message trunk, special services circuit and facility identification cod
27、e formats of clause 6. 5.1 Message Trunk Data Units 5.1.1 Trunk Number A serial number type code that identifies a specific trunk in a trunk group. This data element shall consist of one to four numeric characters. 5.1.2 Traffic Class A standardized code that designates an engineering categorization
28、 e.g., grade of service, alternate route. This data element consists of two alphabetic characters. 5.1.3 Office Class 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 ro
29、ute. This data element consists of two characters, one for each end of the trunk or trunk group, and where each character may be alphabetic or numeric. ATIS-0300097.2013 4 5.1.4 Traffic Use A standardized code that designates the type of traffic offered to the trunk group e.g., inter-end office, tan
30、dem access, directory assistance. This data element consists of two alphabetic characters. 5.1.5 Trunk-Type Modifier 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
31、 as coin, non-coin, bit rate. This data element consists of one to seven characters, each of which may be alphabetic or numeric. 5.1.6 Location A A standardized code that uniquely identifies the location of facility terminal A (i.e., lower in alphabetic sequence of the two facility terminal location
32、 codes), which is the physical site location at which communications equipment or 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 eithe
33、r eight or eleven characters, as allowed by the requirements of ATIS-0300253. Complete definition of this data composite may be found in this standard. 5.1.7 Address Signaling A standardized code that designates the type of signals used to direct a call to its destination e.g., multi-frequency, comm
34、on channel signaling, switching system 7. This data element consists of two characters, each of which may be alphabetic or numeric. The first character is the type of signaling outgoing from the Location A. The second character is the type of signaling outgoing from Location Z, or is a “-” (hyphen)
35、for one-way groups. 5.1.8 Location Z 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 A in 5.1.6. 5.2 Special Service Cir
36、cuit Data Units 5.2.1 Prefix A non-standard code populated according to the special services 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 Co
37、de A standardized code that represents a service offering that requires special services circuit provisioning. This data element consists of two characters, each of which may be alphabetic or numeric. 5.2.3 Service Code Modifier A standardized code that designates the jurisdiction, networking applic
38、ation, and additional technical information of the service identified in the service code of 5.2.2. This data element consists of two characters, each of which may be alphabetic or numeric. ATIS-0300097.2013 5 5.2.4 Numbering Plan Area (NPA) A standardized code that identifies the NPA (commonly call
39、ed an area code) 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 numeric characters. 5.2.5 Central Office (CO) Code A standardized code that identifies the CO (also called exchange, prefix, or NX
40、X) 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 numeric characters. 5.2.6 Line Number A standardized code that identifies the line number associated with the telephone number of a speci
41、al 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 A non-standard code used to record extension numbers/trunk codes associated with the telephone number of a special services circuit. This data ele
42、ment 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 Number The combination of one, two, or three digits used to identify a specific country, countries in an integrated numbering plan, or a specific g
43、eographic area, as prescribed in Recommendation ITU-T E.164. 5.2.9 National (Significant) Number The National (Significant) Number or N(S)N consists of the National Destination Code (NDC) followed by the Subscriber Number (SN). The function and format of the National Significant Number is nationally
44、 determined. Recommendation ITU-T E.164 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 Country code. The National Destination Code identifies a numbering area within a country (or group of countri
45、es 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. 5.2.10 Segment Name A serial value
46、type code uniquely identifying each termination point of a special services circuit, when the circuit has more than two termination points i.e., multipoint circuit. This data element consists of one to three characters, each of which may be alphabetic or numeric. 5.2.11 Serial Number A serial number
47、 type code that uniquely identifies a special services circuit having the same prefix (5.2.1), service code (5.2.2), and service code modifier (5.2.3) within a network operator or carrier assigning the circuit identification. This data element is associated with the serial number format only. It is
48、used when no telephone number is associated with the special services circuit. This data element consists of one to six numeric characters. ATIS-0300097.2013 6 5.2.12 Suffix A serial number type code that relates a group of special services circuits having the same service code (5.2.2) for the same
49、customer, and with similar termination equipment at each end. The suffix is also used on multipoint circuits when the number of legs to be coded exceeds the coding power of the segment number (5.2.9), and is also used to identify terminations behind a leg. This data element is associated with the serial number format only, and consists of one to three numeric characters. 5.2.13 Assigning Company Identifier A standardized code that uniquely identifies the company assigning the special service circuit identification. This data element is associated with the serial number
