../ Back up to the 1988 CCITT Blue Book

Volume 2 Fascicle 3: Telephone network and ISDN - Quality of service, network management and traffic engineering

Part 1: International telephone network management and checking of service quality

Recommendation E.401: Statistics for the international telephone service (number of circuits in operation and volume of traffic)
Recommendation E.410: International network management - General information
Recommendation E.411: International network management - Operational Guidance
Recommendation E.412: Network management controls
Recommendation E.413: International network management - Planning
Recommendation E.414: International network management - Organization
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Part 2: Section 3 Checking the quality of international telephone service

Recommendation E.420: Checking the quality of international telephone service - General Considerations
Recommendation E.421: Service quality observations on a statistical basis
Recommendation E.422: Observations on international outgoing telephone calls for quality of service
Recommendation E.423: Observations on traffic set up by operators
Recommendation E.424: Test calls
Recommendation E.425: Internal automatic observations
Recommendation E.426: General guide to the percentage of effective attempts which should be observed for international telephone calls
Recommendation E.427: Collection and statistical analysis of special quality of service observation data for measurements of customer difficulties in the international automatic service
Recommendation E.428: Connection retention
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Part 3: Traffic engineering, Section 1 Measurement and recording of traffic

Recommendation E.500: Traffic intensity measurement principles
Recommendation E.501: Estimation of traffic offered in the international network
Recommendation E.502: Traffic measurement requirements for SPC (especially digital) telecommunication exchanges
Recommendation E.503: Traffic measurement data analysis
Recommendation E.504: Traffic measurement administration
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Part 4: Section 2 Forecasting of traffic, Section 3 Determination of the number of circuits in manual operation

Recommendation E.506: Forecasting international traffic
Recommendation E.507: Models for forecasting international traffic
Recommendation E.508: Forecasting new international services
Recommendation E.510: Determination of the number of circuits in manual operation
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Part 5: Section 4 Determination of time number of circuits in automatic and semiautomatic operation

Recommendation E.520: Number of circuits to be provided in automatic and/or semiautomatic operation, without overflow facilities
Recommendation E.521: Calculation of the number of circuits in a group carrying overflow traffic
Recommendation E.522: Number of circuits in a high-usage group
Recommendation E.523: Standard traffic profiles for international traffic streams
Recommendation E.524: Overflow approximations for non-random inputs
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Part 6: Section 5 Grade of service, Section 6 Definitions

Recommendation E.540: Overall grade of service of the international part of an international connection
Recommendation E.543: Grades of service in digital international telephone exchanges
Recommendation E.550: Grade-of-service and new performance criteria under failure conditions in international telephone exchanges
Recommendation E.600: Terms and definitions of traffic engineering
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Part 7: Section 7 ISDN traffic engineering

Recommendation E.700: Framework of the E.700 series of recommendations
Recommendation E.701: Reference connections for traffic engineering
Recommendation E.710: ISDN traffic requirements overview
Recommendation E.711: User demand
Recommendation E.713: Control plane traffic models
Recommendation E.720: ISDN grade of service concept
Recommendation E.721: Network grade of service parameters in ISDN
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Part 8: Quality of Service: Concepts, models, objectives, dependability planning, Section 1 Terms and definitions related to the quality of telecommunication services, Section 2 Models for telecommunication services, Section 3 Objectives for quality of service and related concept of telecommunication services, Section 4 Use of quality of service objectives for planning of telecommunication networks, Section 5 Field data collection, analyses and evaluation on the performance of equipment, networks and services

Recommendation E.800: Quality of service and dependability vocabulary
Recommendation E.810: Model for the serveability performance on a basic call in the telephone network
Recommendation E.830: Models for the allocation of international telephone connection retainability, accessibility and integrity
Recommendation E.845: Connection accessibilty objective for the international telephone service
Recommendation E.850: Connection retainability objective for the international telephone service
Recommendation E.855: Connection integrity objective for international telephone service
Recommendation E.862: Dependability planning of telecommunication networks
Recommednation E.880: Field data collection and evaluation on the performance of equipment, networks and services
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Part 9: Supplements to the series E recommendations relating to telephone network management and traffic engineering

Supplement No. 1: Table of the erlang formula
Supplement No. 2: Curves showing the relation between the traffic offered and the number of circuits required
Supplement No. 3: Information on traffic routing in the international network
Supplement No. 4: Use of computers for network planing and circuit gropu dimensioning
Supplement No. 5: Teletraffic implications for international switching and operational procedures resulting from a failure of a transmission facility
Supplement No. 6: Terms and definitions for quality of service, network performance, dependability and trafficability studies
Supplement No. 7: Guide for evaluating and implementing alternate routing networks
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