Supplement 9 to ITU-T E-series Recommendations (10/2021) ITU-T E.800-series – Guidelines on regulatory aspects of QoS Summary History FOREWORD Table of Contents 1 Scope 2 References 3 Definitions 3.1 Terms defined elsewhere 4 Abbreviations and acronyms 5 Conventions 6 Overview of concepts around quality of service 7 Global challenges 8 Selecting the appropriate regulatory approach 8.1 Options and principles 8.1.1 Facilitation of regulatory consultations 8.1.2 Ensuring QoS by regulatory measures 8.1.2.1 Encouraging QoS 8.1.2.2 Enforcing QoS 8.1.3 Including service level agreements (SLAs) in contracts 9 Fundamentals of QoS regulation 9.1 Justifications for QoS regulation 9.2 Parameters and targets 9.3 Activities in quality of service regulation relating to QoS measurement 9.3.1 Selection of QoS parameters through information gathering 9.3.2 Reporting and publishing QoS measurements 10 Specifying parameters, target levels and measurement methods 10.1 Specifying target levels 10.2 Specifying measurement tools, mechanism and formulae 11 Review of QoS regulations, policy and practices Bibliography <\pre>