ITU-T Recommendation E.802 Series E: Overall network operation, telephone service, service operation and human factors. Quality of telecommunication services: concepts… Framework and methodologies for the determination and application of QoS parameters

ITU-T Recommendation E.801 Series E: Telephone network and ISDN. Quality of service, network management and traffic engineering - Quality of telecommunication services: concepts, models, objectives and … Framework for service quality agreement ITU-T Recommendation E.728 Series E: Overall network operation, telephone service, service operation and human factors. Quality of service, network management and traffic engineering… Grade-of-service parameters for B-ISDN signalling ITU-T Recommendation E.726 Series E: Overall network operation, telephone service, service operation and human factors. Quality of service, network management and traffic engineering… Network grade of service parameters and target values for B-ISDN CCITT Recommendation E.810 Telephone network and ISDN. Quality of service, network management and traffic engineering. Framework of the recommendations on the serveability performance and service integrity for telecommunication services CCITT Recommendation E.820 Telephone network and ISDN. Quality of service, network management and traffic engineering. Call models for serveability and service integrity performance CCITT Recommendation E.830 Telephone network and ISDN. Quality of service, network management and traffic engineering. Models for the specification, evaluation and allocation of serveability and service integrity