ATIS T1.TRQ.03-1999 PDF

This document defines the necessary capabilities and functions which must be performed by a Number Portability Data Base (NPDB) application and a Number Portability (NP) Global Title Translation (GTT) function in support of number portability between wireline networks, using the Location Routing Number (LRN) Method. Items not addressed by this document are left to be defined by the service provider and vendor. Additional assumptions and limitations are detailed in Section 1.3. Number portability is a circuit switched network capability that allows an end user to move their North American Numbering Plan (NANP) number from one serving switch in a network to another serving switch in the same or different network while retaining their NANP number. NP is transparent to all end users. Requirements provided in this document address number portability using the LRN obtained from a centralized database to identify the recipient switch when numbers are ported. This document does not address number portability for subscribers with directory numbers that are also used for packet switched data.

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Published :	04/01/1999