Status Report on Number Portability

Transcription

1 Wayne Zeuch Chairman, Technical Subcommittee T1S1 GSC-5 Williamsburg, VA August, 1999 Committee T1 Technical Subcommittees Performance & Signal Processing Interfaces, Power & Protection for Networks Internetwork Operations, Administration, Maintenance, Wireless/Mobile Services and Systems Services, Architectures & Signaling Digital Hierarchy & Synchronization 2 1

2 History - U.S. Activity U.S. Congress: Telecommunications Act of 1996 opened competition among service providers and mandated number portability. Regional U.S. ad hoc forums drafted number portability requirements ( ) ATIS (Alliance for Telecommunications Industry Solutions), Committee T1 s Secretariat, recognized the need for a single set of national technical requirements (September 1997). Committee T1 took on responsibility in October 1997; assigned lead management role to T1S1. New T1S1.6 WG created to discuss OS,, Database, and Billing for Number Portability 3 Number Portability Project (T1S1) Emphasizes T1S1 s role (within Committee T1) in the review and coordination of national Number Portability requirements identification of applicable existing requirements identification of areas for further study and development Emphasizes development of U.S. number portability positions for contribution to international standards bodies Emphasizes T1S1 s role in developing and coordinating development of NP standards and technical reports Interaction with Domestic and International Standards Bodies and Forums Domestic: T1, TIA International: ITU-T SG11, SG 2 Standards Related Groups and Forums: NIIF, INC, OBF, TFPC, IITC, NANC, ICC, CTIA, others 4 2

3 T1 Technical Solutions Solutions based on Intelligent Network capabilities using Location Routing Numbers (LRNs) Location Routing Number LRN is a 10-digit North American numbering plan number used to uniquely identify a switch that has ported numbers LRN assigns a 10-digit number unique to each switch in a defined geographic area; a switch may have multiple LRNs Service providers routing calls to end-users that have transferred their numbers from one service provider to another perform a database query to obtain the LRN that corresponds to the dialed number The database query is performed for all calls where the NPA-NXX of the called number has been marked in the switch as ported 5 T1 Technical Solutions Originating NP Processing Indirect to the Recipient NPDB Subscriber A dials STP Subscriber B ( ) (1) (3) (4) Ported DN (10) (6) (8) Originating (2) (5) Intermediate (7) Recipient (9) 6 3

4 T1 Technical Solutions Donor with NP Query NPDB Subscriber A dials STP Subscriber B ( ) (1) (5) (6) Ported DN (10) (3) (8) Originating (Not NP Capable) (2) Donor (4) (7) Recipient (9) 7 T1 - Standards Approved Signalling System Number 7 - Call Completion to a Portable Number (CCPN) First Number Portability standard published (ANSI T ); drafted in T1S1 by SS7 WG (T1S1.3) Describes network capability for delivering number portability routing information to each switch in the call path Annexes for optional Network Capabilities ν Query-Response (normative) ν Release to Pivot (informative) ν Query on Release (informative) Wireless Number Portability Standards PCS 1900 Number Portability; (ANSI T1.708); drafted in T1P1 Number Portability for PCS 1900 Short Message Service and Other Services, (ANSI T1.711); drafted in T1P1 8 4

5 T1 - Technical Report Approved Number Portability Program Management (TR-57) Published January 1999; Summarizes overall coordination and program management for Number Portability. ν Workplan, deliverables, architecture, and references Tracks work in Committee T1, other SDOs, and other industry fora to identify requirements documents, standards, and Technical Reports related to number portability that already exist or are under development. Objective is to manage the integration of applicable requirements and information into the set of national requirements Identifies other relevant external standards bodies and forums, and lists existing Committee T1 and TIA standards and related technical reports affected by Number Portability requirements. 9 T1 - Technical Requirements Approved U.S. National Technical Requirements; published April 1999 Number Portability Operator Services ing Systems (TRQ-1) Number Portability ing Systems (TRQ-2) Number Portability Database and Global Title Translation (TRQ-3) Includes User/Customer Perspective, Network Impacts, and Feature/Capability Requirements 10 5

6 Workplan Requirements (Issue 2) Wireline/Wireless Interworking Location Portability Number Pooling 11 6