1、 ATIS-0300036 ATIS Standard on - NEXT GENERATION INTERCONNECTION INTEROPERABILITY FORUM (NGIIF) REFERENCE DOCUMENT: PART XIII, TERMS AND DEFINITIONS As a leading technology and solutions development organization, the Alliance for Telecommunications Industry Solutions (ATIS) brings together the top g
2、lobal ICT companies to advance the industrys most pressing business priorities. ATIS nearly 200 member companies are currently working to address the All-IP transition, network functions virtualization, big data analytics, cloud services, device solutions, emergency services, M2M, cyber security, ne
3、twork evolution, quality of service, billing support, operations, and much more. These priorities follow a fast-track development lifecycle from design and innovation through standards, specifications, requirements, business use cases, software toolkits, open source solutions, and interoperability t
4、esting. ATIS is accredited by the American National Standards Institute (ANSI). The organization is the North American Organizational Partner for the 3rd Generation Partnership Project (3GPP), a founding Partner of the oneM2M global initiative, a member of and major U.S. contributor to the Internati
5、onal Telecommunication Union (ITU), as well as a member of the Inter-American Telecommunication Commission (CITEL). For more information, visit www.atis.org. Notice of Disclaimer 2) all interested members of the industry within the affected NPA. This term is further defined in the Central Office Cod
6、e (NXX) Assignment Guidelines (COCAG) and the Thousands-Block Pooling Assignment Guidelines (TBPAG). Agency Authorization: See “Customers Agent” Alternate Mark Inversion (AMI) Signal: A pseudo ternary signal, representing binary digits, in which (a) successive “marks“ are of alternately positive and
7、 negative polarity and the absolute values of their amplitudes are normally equal and (b) “spaces“ are of zero amplitude. Synonym bipolar signal. Answer/Disconnect Supervision: Denotes the transmission of the switch trunk equipment supervisory signal (off-hook or on-hook) to the customers point of t
8、ermination, typically as an indication that the called or calling party has answered or disconnected. Applicant/Code Applicant: Service Providers who submit a Central Office Code Request to the Central Office (CO) Code Administrator for the purpose of being assigned a CO Code for their use. In thous
9、ands-block telephone number pooling, the Pooling Administrator is authorized to apply for the assignment of CO Codes as outlined in ATIS-0300051, Central Office Code (NXX) Assignment Guidelines (COCAG). ASC: See “Access Service Customer” ASP: See “Access Service Provider” Assigned Numbers: Assigned
10、numbers are numbers working in the Public Switched Telephone Network (PSTN) under an agreement such as a contract or tariff at the request of specific end users or customers for their use, or numbers not yet working but having a customer service order pending. Numbers that are not yet working and ha
11、ve a service order pending for more than five calendar days shall not be classified as assigned numbers. (FCC 00-104 52.15 (f)(1) (iii) Attenuation Distortion: The difference in loss at specified frequencies relative to the loss at 1004 Hz, unless otherwise specified. NECA/ FCC-5 Audit: (relative to
12、 numbering guidelines and FCC regulations): The accumulation and evaluation of evidence about documented information of an auditee to determine and report on the degree of compliance with Industry Numbering Committee (INC) industry guidelines. Audit or auditing also refers to examination and verific
13、ation during testing and other telecommunication switch functions. Automatic Code Gap (ACG): A code control that is implemented automatically in response to a request from a database to limit traffic. This control can be in the form of six (6) through ten (10) digits. A six-digit control is used to
14、protect the database in instances of a general overload. A ten-digit control is used to control focused overloads. 4 Automatic Congestion Control (ACC): ACC is a two-part feature. In order for ACC to function properly it must be implemented in the originating and terminating nodes of an interconnect
15、ed network. The first part enables a (terminating) network node to alert interconnected nodes that it is in Machine Congestion 1 or 2 (MC1 or MC2). The second part allows a distant (originating) network node to automatically react to an ACC message and enact trunk group controls (Cancel To (CANT) an
16、d SKIP) on specific trunk groups. Automatic Number Identification (ANI): 1) A service feature in which the directory number or equipment number of a calling station is automatically obtained. Note: ANI is used in message accounting. 2) The code that provides the billing number of the line or trunk t
17、hat originated a call. T1.104-1988 3) A system that identifies the billing account for a call. For 9-1-1 systems, the ANI identifies the calling party and may be used as a call back number. 47CFR Automatic Scheduled Testing (AST): AST of Switched Access Services (Feature Groups B, C and D), where th
18、e customer provides remote office test lines and 105 test lines with associated responders or their functional equivalent, will consist of monthly loss and C-message noise tests and annual balance test. B8ZS (Bipolar with 8-Zero Substitution): A code in which eight consecutive zeros are replaced wit
19、h the sequence 000+-0-+ if the preceding pulse was + and with the sequence 000-+0+- of the preceding pulse was -, where + represents a positive pulse, - represents a negative pulse, and 0 represents no pulse. Balance (100 TYPE) Test Line: An arrangement in an end office which provides for balance an
20、d noise testing. The test can be either 600 ohm or 900 ohm depending on office type. Bit Error Rate: Deprecated term. See “Bit Error Ratio”. Bit Error Ratio (BER): The number of erroneous bits divided by the total number of bits transmitted, received, or processed over some stipulated period. Note 1
21、: Examples of bit error ratio are (a) transmission BER, i.e., the number of erroneous bits received divided by the total number of bits transmitted; and (b) information BER, i.e., the number of erroneous decoded (corrected) bits divided by the total number of decoded (corrected) bits. Note 2: The BE
22、R is usually expressed as a coefficient and a power of 10; for example, 2.5 erroneous bits out of 100,000 bits transmitted would be 2.5 out of 105 or 2.5 10-5. Bit Error Rate Test: A test performed on a digital facility/service which counts erroneous bits and divides them by the bits sent over a set
23、 period of time. Usually expressed as a power of 10 e.g. (1 x $ 10 sup -6 $). Business Information Rating and Routing System (BIRRDS): A centralized database maintained by iconectiv through which Service Providers or their authorized representatives enter and maintain routing and rating data in supp
24、ort of their NANP numbering assignments. Output from BIRRDS includes the iconectiv LERG Routing Guide and the iconectiv TPM Data Source2. _ 2TPM is a trademark of Telcordia Technologies dba iconectiv 5 Block Holder: The Service Provider to which a thousands-block (NXX-X) has been assigned for use. B
25、locked Call: A blocked call is said to have occurred when a call presented to a telecommunications Service Provider facility cannot be completed due to Blocking. Blocking: 1) The formatting of data into blocks for purposes of transmission, storage, checking, or other functions. 2) Denying access to,
26、 or use of, a facility, system, or component. 3) The failure of a telecommunications network to meet a user service demand, because of the lack of an available communications path. C-Message Noise: The frequency weighted average noise within an idle voice channel. The frequency weighting, called C-m
27、essage, is used to simulate the frequency characteristic of the 5OO-type telephone set and the hearing of the average subscriber. C-Notched Noise: The C-message frequency weighted noise on a voice channel with a holding tone, which is removed at the measuring end through a notch (very narrow band) f
28、ilter. Call Agent: Provides call processing, call control, feature control and Operations Administration Maintenance sequential, acknowledged transmission of user data; and call termination. Called Party Pays: A service for which the end user receives and pays for call. Calling Party Pays: A service
29、 for which the end user originates and pays for a call. Canadian Central Office Code (NXX) Assignment Guidelines (Canadian COCAG): The Canadian Radio-television and Telecommunications Commission (CRTC) approves recommendations made by the Canadian Steering Committee on Numbering (CSCN), which recomm
30、ends guidelines to the CRTC for the administration of Central Office (CO) Codes within Canadian Numbering Plan Areas (NPAs) by a Canadian independent third party 6 administrator called the Canadian Numbering Administrator (CNA). The purpose of these Guidelines is to provide direction to the CNA, Cod
31、e Applicants, and Code Holders with respect to the administration, assignment, activation, and use of CO Codes and the numbering resources contained therein. Cancel To (CANT): A trunk group control that allows traffic to be canceled before hunting for a circuit to a destination. Equipment vendors co
32、mmonly provide the capability to implement this control on a percentage basis. Carrier Identification Code (CIC): Used to route and bill calls in the public switched telephone network. CICs are four-digit codes in the format XXXX, where X is any digit from 0 through 9. Separate CIC pools are maintai
33、ned for Feature Group B (line side) access and Feature group D (trunk side) access. CICs are assigned by the North American Numbering Plan Administrator (NANPA) according to guidelines developed by the ATIS-sponsored Industry Numbering Committee. Central Office (CO): 1) A common carrier switching ce
34、nter in which trunks and/or loops are terminated and switched. Note: In the DOD, “common carrier“ is called “commercial carrier.“ Synonym switch. Other synonyms loosely end office, exchange, local central office, local exchange, local office, switching center (except in DOD DSN formerly AUTOVON usag
35、e), switching exchange, telephone exchange. 2) A switching unit, in a telephone system which provides service to the general public, having the necessary equipment and operations arrangements for terminating and interconnecting subscriber lines and trunks or trunks only. There may be more than one c
36、entral office in a building. 47 CFR Pt.36-A Central Office (CO) Code: The second three digits (NXX) of a ten-digit telephone number in the form NXX-NXX-XXXX, where N represents any one of the numbers 2 through 9 and X represents any one of the numbers 0 through 9. (47 C.F.R. 52.7(c) Central Office (
37、CO) Code Administrator: Responsible for the administration of the NXXs within a Numbering Plan Area. Central Office Code (NXX) Assignment Guidelines (COCAG): ATIS Industry Numbering Committee (INC) developed guidelines that address assignment of Central Office (CO) Codes. Central Office Code (NXX) E
38、xhaust: A point in time at which the quantity of TNs within existing CO codes (NXX) which are “Available for Assignment” equals zero within a switching entity/Point Of Interconnection (POI) or, conversely, when the quantities of “TNs Unavailable for Assignment” equal 10,000 times the quantity of exi
39、sting CO codes (NXX) assigned to a switching entity/POI. Where CO code sharing occurs or partial CO codes are assigned to a switching entity/POI, the latter number should be adjusted accordingly. Certify/Certification: The authorization of a carrier by a regulator to provide a telecommunications ser
40、vice in the relevant geographic area. FCC 52.15 (g)(2)(i) requires that applications for initial numbering resources shall include evidence that the applicant is authorized to provide service in the area for which numbering resources are being requested. Chronic Trunk: A trunk experiencing a much hi
41、gher then normal rate of failure or switching irregularities, over a period of time, with resulting high incidence of test O.K. or no trouble found. 7 CLEC (Competitive Local Exchange Carrier): In the United States, a CLEC is a facility based communications company that competes with the already est
42、ablished local telephone business by providing its own network and switching. The term distinguishes competitors from established Local Exchange Carriers (LECs) and arises from the Telecommunications Act of 1996, which was intended to promote competition among both long-distance and local phone Serv
43、ice Providers. Similarly in Canada, CLECs are addressed by Telecom Decision CRTC 97-8, 1 May 1997 (Decision 97-8). CLONES: CLONES is maintained by iconectiv as the Location Registry for the creation and maintenance of COMMON LANGUAGE Location Code (CLLI Code)3by COMMON LANGUAGE subscribers. For an 1
44、1-character location identifier to be termed a CLLI Code, it must have been created and currently reside in CLONES. Associated information includes postal code, latitude and longitude, vertical and horizontal coordinates, and switching system type. CODE HOLDER: An assignee of a pooled or non-pooled
45、NXX code that is assigned by the CO Code Administrator. The responsibilities of an assignee for a pooled NXX are defined in Section 4.2.1 of the Thousands Block Number (NXX-X) Pooling Administration Guidelines (TBPAG) and for a non pooled NXX are defined in Section 6.3 of the Central Office Code (NX
46、X) Assignment Guidelines (COCAG). A given Code Holder is identified in the LERG Routing Guide as the NPA-NXX-A (Assignee) OCN record holder. COMMON LANGUAGE Location Code (CLLI Code): An eleven-character alphanumeric descriptor used to identify switches, points of interconnection, and other categori
47、es of telephony network elements and their locations. For an 11-character location identifier to be termed a CLLI Code, it must reside in CLONES. Companies that are subscribers of COMMON LANGUAGE Location Information Service can refer questions to their companys CLLI Code Coordinator. Competitive Ac
48、cess Provider (CAP): A telecommunications carrier that provides access services which are alternate to (or which bypass) a local exchange carrier. Code Activation: See “Active Code”. Code Holder: An assignee of an NXX code which was allocated by the Central Office (CO) Code Administrator. Company Co
49、de: A unique four-character alphanumeric code (NXXX) assignable to all telecommunications Service Providers. For purposes of this document N=0-9 and X=0-9 or A-Z. Compatibility Testing: Ensures that the software interface between the two contracting networks perform in a manner which demonstrates that all basic functions and utilities operate as specified. _ 3COMMON LANGUAGE and CLLI are trademarks of Telcordia Technologies dba iconectiv 8 Conservation (relative to numbering guidelines): Consideration given to the efficient and effective use of a fi
