ITU-T E.800 Series Supplement 5-1988 Teletraffic implications for international switching and operational procedures resulting from a fai

pdf标准 ITU-T E.800 Series Supplement 5-1988 Teletraffic implications for international switching and operational procedures resulting from a fai

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INTERNATIONAL TELECOMMUNICATION UNION ITU-T TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU Series E.800 Supplement 5 (11/1988) SERIES E: OVERALL NETWORK OPERATION, TELEPHONE SERVICE, SERVICE OPERATION AND HUMAN FACTORS Telephone network management and traffic engineering Teletraffic implications for international switching and operational procedures resulting from a failure of a transmission facility ITU-T E.800-series Recommendations – Supplement 5 (Formerly CCITT Recommendations) ITU-T E-SERIES RECOMMENDATIONS OVERALL NETWORK OPERATION, TELEPHONE SERVICE, SERVICE OPERATION AND HUMAN FACTORS INTERNATIONAL OPERATION Definitions General provisions concerning Administrations General provisions concerning users Operation of international telephone services Numbering plan of the international telephone service International routing plan Tones in national signalling systems Numbering plan of the international telephone service Maritime mobile service and public land mobile service OPERATIONAL PROVISIONS RELATING TO CHARGING AND ACCOUNTING IN THE INTERNATIONAL TELEPHONE SERVICE Charging in the international telephone service Measuring and recording call durations for accounting purposes UTILIZATION OF THE INTERNATIONAL TELEPHONE NETWORK FOR NONTELEPHONY APPLICATIONS General Phototelegraphy ISDN PROVISIONS CONCERNING USERS INTERNATIONAL ROUTING PLAN NETWORK MANAGEMENT International service statistics International network management Checking the quality of the international telephone service TRAFFIC ENGINEERING Measurement and recording of traffic Forecasting of traffic Determination of the number of circuits in manual operation Determination of the number of circuits in automatic and semi-automatic operation Grade of service Definitions Traffic engineering for IP-networks ISDN traffic engineering Mobile network traffic engineering QUALITY OF TELECOMMUNICATION SERVICES: CONCEPTS, MODELS, OBJECTIVES AND DEPENDABILITY PLANNING Terms and definitions related to the quality of telecommunication services Models for telecommunication services Objectives for quality of service and related concepts of telecommunication services Use of quality of service objectives for planning of telecommunication networks Field data collection and evaluation on the performance of equipment, networks and services For further details, please refer to the list of ITU-T Recommendations. E.100–E.103 E.104–E.119 E.120–E.139 E.140–E.159 E.160–E.169 E.170–E.179 E.180–E.189 E.190–E.199 E.200–E.229 E.230–E.249 E.260–E.269 E.300–E.319 E.320–E.329 E.330–E.349 E.350–E.399 E.400–E.409 E.410–E.419 E.420–E.489 E.490–E.505 E.506–E.509 E.510–E.519 E.520–E.539 E.540–E.599 E.600–E.649 E.650–E.699 E.700–E.749 E.750–E.799 E.800–E.809 E.810–E.844 E.845–E.859 E.860–E.879 E.880–E.899 Supplement 5 to ITU-T E.800-series Recommendations Teletraffic implications for international switching and operational procedures resulting from a failure of a transmission facility Source Supplement 5 was approved in Melbourne (1988) and originally published in Blue Book, Fascicle II.3. E.800 series – Supplement 5 (11/1988) i FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications. The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for studying technical, operating and tariff questions and issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Conference (WTSC), which meets every four years, establishes the topics for study by the ITU-T study groups which, in turn, produce Recommendations on these topics. The approval of ITU-T Recommendations is covered by the procedure laid down in WTSC Resolution 1. In some areas of information technology which fall within ITU-T's purview, the necessary standards are prepared on a collaborative basis with ISO and IEC. NOTE In this publication, the expression "Administration" is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. INTELLECTUAL PROPERTY RIGHTS ITU draws attention to the possibility that the practice or implementation of this publication may involve the use of a claimed Intellectual Property Right. ITU takes no position concerning the evidence, validity or applicability of claimed Intellectual Property Rights, whether asserted by ITU members or others outside of the publication development process. As of the date of approval of this publication, ITU had not received notice of intellectual property, protected by patents, which may be required to implement this publication. However, implementors are cautioned that this may not represent the lat

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