Рекомендация МСЭ-Т E.861 Серия E: Общая эксплуатация сети, телефонная служба, функционирование служб и человеческие факторы. Качество услуг электросвязи: концепции, модели, цели и планирование надежности… Определение метрик способности выполнять работу

ITU-T Recommendation E.860 Series E: Overall network operation, telephone service, service operation and human factors. Quality of telecommunication services: concepts, models, objectives and dependability planning… Framework of a service level agreement ITU-T Recommendation E.855 Telephone network and ISDN. Quality of service, network management and traffic engineering. Connection integrity objective for international telephone service CCITT Recommendation E.850 Telephone network and ISDN. Quality of service, network management and traffic engineering. Connection retainability objective for the international telephone service CCITT Recommendation E.862 (rev.1) Telephone network and ISDN. Quality of service, network management and traffic engineering. Dependability planning of telecommunication networks ITU-T Recommendation E.880 Telephone network and ISDN. Quality of service, network management and traffic engineering. Field data collection and evaluation of the performance of equipment, networks and services Рекомендация МСЭ-Т E.910 Серия E: Общая эксплуатация сети, телефонная служба, функционирование служб и человеческие факторы. Прочее. Процедуры регистрации наименований в домене ".int"