ITU-T E.164.1-2008 (Pre-Published) Criteria and procedures for the reservation, assignment and reclamation of E.164 cou

pdf标准 ITU-T E.164.1-2008 (Pre-Published) Criteria and procedures for the reservation, assignment and reclamation of E.164 cou

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I n t e r n a t i o n a l T e l e c o m m u n i c a t i o n ITU-T U n i o n E.164.1 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (09/2008) SERIES E: OVERALL NETWORK OPERATION, TELEPHONE SERVICE, SERVICE OPERATION AND HUMAN FACTORS International operation – Numbering plan of the international telephone service Criteria and procedures for the reservation, assignment and reclamation of E.164 country codes and associated identification codes (ICs) Recommendation ITU-T E.164.1 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 OTHER 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.404 E.405–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 E.900–E.999 Recommendation ITU-T E.164.1 Criteria and procedures for the reservation, assignment and reclamation of E.164 country codes and associated identification codes (ICs) Summary Recommendation ITU-T E.164 describes the international public telecommunication numbering plan. Recommendation ITU-T E.190 describes the general principles to be utilized in the assignment of ITU-T E-series international numbering resources. This Recommendation describes the procedures and criteria for the reservation, assignment and reclamation of E.164 country codes and associated identification code (IC) assignments. The criteria and procedures are provided as a basis for the effective and efficient utilization of the available E.164 numbering resources. Such assignments require a collaborative effort between TSB and the appropriate ITU-T study group to endeavour to ensure that the assignments meet the needs of the telecommunication community. The development of these criteria and procedures are in accordance with the principles contained in Recommendation ITU-T E.190 and the numbering plan formats detailed in Recommendation ITU-T E.164. While processing E.164 resource applications, any conflicts between these Recommendations that are identified will be resolved by the following: Those statements contained in Recommendation ITU-T E.190 take precedence over Recommendation ITU-T E.164, and those statements contained in Recommendation ITU-T E.164 take precedence over this Recommendation. The Director of the Telecommunication Standardization Bureau (TSB) assigns and reclaims E.164 country codes for geographic areas, global services and for Networks. The Director is also responsible for the assignment and reclamation of identification codes (ICs) for Networks. The assignment of subsequent digits is normally not the purview of ITU-T, but is the purview of the assignee. However, there may be unique circumstances by which it is jointly agreed by TSB and the appropriate ITU-T study group that s

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