1、 ATIS-0300053 REPORT ON PCS N00 PORTABILITY Reissued with the resolution of Issue 165 August 30, 1999 Copyright 1999 by the Alliance for Telecommunications Industry Solutions, Inc. All rights reserved. The INC Report on PCS N00 Portability dated August 30,1999 (former document number INC 95-0512-010
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5、 the rapid development of global, market-driven standards for the information, entertainment and communications industry. More than 250 companies actively formulate standards in ATIS 18 Committees, covering issues including: IPTV, Service Oriented Networks, Energy Efficiency, IP-Based and Wireless T
6、echnologies, Quality of Service, and Billing and Operational Support. In addition, numerous Incubators, Focus and Exploratory Groups address emerging industry priorities including “Green”, IP Downloadable Security, Next Generation Carrier Interconnect, IPv6 and Convergence. ATIS is the North America
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8、e visit . - The Industry Numbering Committee (INC) provides an open forum to address and resolve industry-wide issues associated with planning, administration, allocation, assignment and use of North American Numbering Plan (NANP) numbering resources within the NANP area. This document is maintained
9、 under the direction of ATIS and the INC. Suggestions for improvement of this document are welcome. They should be sent to the Alliance for Telecommunications Industry Solutions, INC Staff, 1200 G Street NW, Suite 500, Washington, DC 20005. All changes to this document shall be made through the INC
10、issue resolution process and adopted by the INC as set forth in the ATIS Operating Procedures. - Notice of Disclaimer e.g., 800. N00 codes are commonly referred to as Service Access Codes (SACs). Number Portability - number portability in the context of personal communications service implies that a
11、 PCS subscriber can change service providers while retaining their number assignment. PIC (Presubscribed Inter LATA Carrier) - the carrier selected by the customer if they wish to be presubscribed to an IC (Interexchange Carrier) rather than selecting the IC on every interLATA call. The PIC is also
12、frequently referred to as the presubscribed IC. In the context of this document PIC is also used as the Presubscribed IntraLATA Carrier. PCS (Personal Communications Service) - for the purpose of this document personal communications service is a set of capabilities that allows some combination of p
13、ersonal mobility, terminal mobility, and service profile management. It enables each personal communications service user to participate in a user defined set of subscribed services, and to initiate and/or receive calls on the basis of some combination of a personal number, terminal number, and a se
14、rvice profile across multiple networks at any terminal, fixed or mobile, irrespective of geographic location. Service is limited only INC Report on PCS N00 Portability August 30, 1999 _ 7by terminal and network capabilities and restrictions imposed by the personal communications service provider. PC
15、SNDB (Personal Communications Service Numbering Database) - a regional/local data base which contains PCS number assignments and routing information. PCS Record Administrator - the responsible organization that assumes the duty of managing and administering the appropriate records in the PCS N00/SMS
16、. These duties include data entry, record change, trouble acceptance, referral and/or clearance. Personal Communications Service Subscriber - a person who, or entity which, obtains a personal communications service from a personal communications service provider on behalf of one or more personal com
17、munications service users. Personal Communications Service User - a person who, or entity which, has access to personal communications services and has been assigned a personal number. Personal Mobility - the ability of a user to access telecommunication services at any terminal on the basis of a pe
18、rsonal identifier, and the capability of the network to provide those services according to the users service profile. Personal mobility involves the network capability to locate the terminal associated with the user for the purpose of addressing, routing, and charging of the users calls. Personal N
19、umber - a number that uniquely identifies a PCS user and is used to place, or forward, a call to that user. PC (Preferred Carrier) - the carrier (which may be selected by the customer to provision intraLATA or interLATA services). PSTN (Public Switched Telephone Network) - the switched network that
20、enables full and mutual access between public users via E.164 numbers. It is an integrated system of transmission and facilities, signaling processors, and associated operational support systems that are shared by customers. SCP (Service Control Point) - a network data base containing information an
21、d/or logic used in call processing to provide services. A service switching point (SSP) contacts an SCP when the SSP recognizes the need for special call handling. Use of this term does not imply any specific technology platform. SCP/HLR (Service Control Point/Home Location Register) for purposes of
22、 this document, an SCP/HLR is a data base that the PCSNDB may query in order to translate a dialed PCS N00 number into a geographic number. INC Report on PCS N00 Portability August 30, 1999 _ 8SMS (Service Management System)- an Operations Support System used to facilitate the provisioning and admin
23、istration of service data required by the SCP. Use of this term does not imply any specific technology platform. SSP (Service Switching Point)- a network element that initiates a dialogue with an SCP in which the logic for the requested service resides. The SSP may communicate with more than one SCP
24、. Use of this term does not imply any specific technology platform. Service Profile - a record containing all the information related to a personal communications user in order to provide that user with personal communications service. Each service profile is associated with a single personal number
25、. Service Profile Management - the ability to across and manipulate the service profile. Service profile management can be performed by the personal communications service user, personal communications service subscriber, or personal communications service provider. Service Provider - any entity tha
26、t is authorized, as appropriate, by local government, state, federal, or World Zone 1 governmental authorities to provide personal communications service to the public. STP (Signal Transfer Point)- a Common Channel Signaling (CCS) network element. SS7 (Signaling System 7) - a standardized protocol f
27、or high speed communication between intelligent network nodes. Terminal Mobility - the ability of a terminal to access telecommunication services from different locations and while in motion, and the capability of the network to identify and locate that terminal. Working Numbers - the quantity of nu
28、mbers within existing CO codes (NNX/NXX) which are assigned to working subscriber access lines or their equivalents, e.g. direct inward dialing trunks, paging numbers, special services, temporary local directory numbers (TLDNs), etc., within a switching entity/POI (Point Of Interconnection). WZ1 (Wo
29、rld Zone 1) - consists of the United States, Canada, Bermuda, and the NANP Caribbean administrations. INC Report on PCS N00 Portability August 30, 1999 _ 93.0 Reference Documents 1. ICCF 93-1130-011, PCS N00 NXX Code Assignment Guidelines (ICCF document) 2. TR-NWT-001284, Advanced Intelligent Networ
30、k 0.1 Switching System Generic Requirements (Telcordia Technologies document) TR-NWT-001285, Advanced Intelligent Network 0. l Switch Service Control Point/Adjunct Application Protocol Interface (API) Generic Requirements (Telcordia Technologies document) 3. CC Docket 86-10, Implementation Plan for
31、800 Data Base Access Service, 3m92 (FCC Docket) 4. SR-TSV-00227S, BOC Notes on the LEC Networks, Issue 2, 4194 (Telcordia Technologies document) 5. TR-NWT-000690, LSSGR Issue l, March, l99l (Telcordia Technologies document) To obtain Telcordia Technologies or ICCF documents please contact: Telcordia
32、 Technologies Customer Relations (908) 699-5800 INC Secretary (202) 434-8846 4.0 Assumptions and Constraints This report is based on the following assumptions and constraints resulting from Agreements Reached by the ICCF and INC. This document does not address the issue of who will administer the PC
33、S N00 data base(s). This document describes an architecture intended to provide the greatest latitude to those providing personal communications service. Any new signaling messages required to implement PCS portability are recommended for implementation in SS7 only. Modifications to MF (Multi Freque
34、ncy) signaling were not considered for PCS portability due to the additional call set up time required. International inbound routing from non-WZl areas to PCS N00-NXX is not addressed. 5.0 PCS N00 Portability-Principles To allow entities the greatest possible latitude in providing services, the fol
35、lowing principles apply to all aspects of PCS Portability: No PCS Service Provider should be advantaged or disadvantaged by the portability aspect of the architecture proposed. INC Report on PCS N00 Portability August 30, 1999 _ 10 The terminology :used within this document does not assume any parti
36、cular equipment configurations, implementation or platform provider and is used for reference purposes only. 6.0 PCS N00 Portability Criteria The following network, operational and user elements have been considered in assessing the various PCS N00 portability architecture options. This assessment i
37、s shown in the matrix in Appendix l. 6.1 Network Originating Switch (source of dial tone) Transport/tandem/interexchange/international switches Signaling (SS7, X.25) Data Base(s) (SSP, SCP, STP) PCS Number Portability Data Base(s) Special capabilities - IN/AIN Special capabilities - equal access Cap
38、abilities - vertical services Intelligence/translations Load/traffic engineering/capacity Connectivity/interconnection/interworking Response times/grades of service New network elements/topology 6.2 Call Flows/Routing Call set-up procedures Link-by-link call flows Speech path vs. signaling paths Inf
39、ormation flow/dependencies Response times/grade of service impacts Emergency call handling 6.3 Billing/Rating/Accounting/Settlement Methods of payment Billing/collection Billing records Settlement procedures Compensation 6.4 Traffic Performance: (portability portion only) Call set-up times (up to ha
40、nd off to service provider) Network overhead/call processing INC Report on PCS N00 Portability August 30, 1999 _ 11 Traffic load/engineering Reliability/survivability Load control/network management 6.5 Ubiquity/Universality Availability of service Ability/impact of accessing portable WZ1 PCS number
41、s (Domestic (USA)/WZ1/Outside WZ1) Assumptions Scheduling impacts Industry standards 6.6 Service Provider/Carrier Identification (ID) Service provider/carrier may be different entities ID embedded in PCS number ID embedded in address Calling party determinable - How? Network determinable - How? Carr
42、iage of ID information (Originating - transit terminating - billing) 6.7 Operational Support Systems (e.g., ordering, billing, maintenance, etc.) Support with no modifications Support with modifications New system/functionality required 6.8 Portable PCS Number Administration Security/data protection
43、 Number assignment procedures (request, selection, confirmation ,etc. .) Resource management Centralized vs. de-centralized Access/communications 6.9 Expandability Ability to support multiple PCS NPAs Ability to support multiple non-geographic NPA number portability Numbering resources required Open
44、 ended/closed Expediency vs. quality 6.10 Operator Services/Directory Assistance Requirements/assumptions Access arrangement(s) Information (number assignment, name of service provider, etc.) source . INC Report on PCS N00 Portability August 30, 1999 _ 126.11 Transparency Between Service Providers (
45、Portability should not add or subtract value across service provider spectrum) Advantage vs. no advantage Small service provider vs. large service provider National vs. international Intra-World Zone l (between countries) ; 6.12 Timing/Availability Critical assessment criteria Degree of difficulty a
46、nd availability Relative estimates required (i.e., 2 years vs. 5 years) Trade-offs involved (features vs. bare bones) Establish minimum standard 6.13 Dependencies/Limitations Factors/actions which ease or complicate portability implementation (i.e., NXX plan implementation might complicate portabili
47、ty implantation/transition) 6.14 End User Impacts PCS users/subscribers PCS callers (casual callers to PCS numbers) Transition to PCS portability/number of changes Transparency Evolution path 6.15 Blocking Capability Screening and blocking of PCS calls at source Number of digits analyzed versus code blocking Calling customer control 6.16 Maintenance Trouble Reporting Testing/
