A Study on the Implementation of Number Portability in Taiwan
| Autor: | Hsiu-Ting Hsu, 許秀婷 |
|---|---|
| Rok vydání: | 1999 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 87 Number Portability allows telecommunications users to retain their telephone numbers in case they want to change service provider. Telephone numbers may be associated with fixed network services, mobile network services or non-geographic related services. There are three types of number portability services- Service Provider Portability, Location Portability, and Service Portability. Taiwan''''''''s fixed network telecommunications services will be opened up for competition by end of 1999. The DGT''''''''s policy is to mandate Service Provider Portability and non-geographic NP when competitive LECs start offering fixed network services. Mobile NP will be postponed till international standards become available. The charges and costs recovery principles of Number Portability services often cause disputes among CLECs and ILECs. The commonly accepted principles include the Cost Causality Principle, the Cost Minimization Principle, the Effective Competition Principle and the Distribution of Benefits Principle. There are two alternative architectures for implementing the ported-number database: centralized database or distributed database. The centralized database relies on a third party to be the controller or the administrator for the exchange of ported-number information. This approach may be more reliable; however, it may be a little costly for the carriers. On the other hand, the distributed database requires each carrier to inform all the carriers about their newly signed-up customers. This is like an autonomous system which is more economical but may not be as robust as the centralized approach. This thesis focused on critical issues of implementing NP, including cost-benefit analysis, management of distributed or centralized database, mobile NP challenges, technical feasibility studies and regulatory policies. This research summarized the experiences of other countries with respect to NP policies and implementation. The purpose was to provide recommendations to the DGT as well as to the competitive LEC, and the incumbent LEC. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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