Provision of end-user data

(1) Every provider of a number-based interpersonal telecommunications service must, having regard to the applicable data protection provisions, provide any undertaking, on application, with end-user data under section 17(1) for the purpose of providing publicly accessible directory enquiry services, services for notifying an individual of another user's wish to be contacted, and end-user directories.
(2) A charge may be required for the provision of the data. The charge is as a rule subject to a subsequent review for abuse by the Federal Network Agency in accordance with the provisions of the Telecommunications Act on the review of charges for abuse. A charge may be made subject to the requirement of charge approval under the Telecommunications Act only where the undertaking providing the end-user data has significant market power on the market for end-user data.
(3) The data must be provided under paragraph 1 without delay after an application under paragraph 1, and in a non-discriminatory manner.
(4) The data provided under paragraph 1 must be complete and must be prepared, in content and technically, in such a way that, according to the state of the art, they can without difficulty be incorporated into a customer-friendly end-user directory or into a corresponding directory enquiry service database.