136 Telecommunications Act 2005 2005, No.20 introductory pages to every telephone directory published by the service provider or on behalf. (4) A service provider designated pursuant to section 46 shall provide, upon request and at a reasonable charge, paper copies of the service provider‟s schedule of approved tariffs to any customer who requests them. 56. Telephone Directories–If required by an order of the Regulator, a service provider shall provide customers with a telephone directory in accordance with terms and conditions as the Regulator may nominate in the order from time to time. 57. Quality of Service-(1) A service provider designated pursuant to section 46 shall provide telecommunications services that meet specific quality of service standards. These standards shall be developed by the Regulator in consultation with the service provider and may be included in the service provider‟s licence or established by order of the Regulator. (2) The Regulator may amend, add or delete quality of service standards established pursuant to subsection (1), following consultation with the affected service provider. (3) When quality of service standards have been established pursuant to subsection (1), a service provider shall deliver written reports to the Regulator each quarter, in accordance with the following: (a) Quality of service reports shall: (i) be in a form determined by the Regulator; and (ii) set out the service provider‟s actual results for each quality of service standard; and (b) Where a quality of service report indicates that a standard has not been achieved, the service provider shall provide an explanation to the Regulator as to why the standard was not achieved and what specific steps the service provider has taken or intends to take to achieve the standard.