ITU-T SERIES E 300 SUPP 4-1988 Treatment of calls considered as terminating abnormally《视为终止异常的呼叫的处理》.pdf

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1、 INTERNATIONAL TELECOMMUNICATION UNION ITU-T Series E.300 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU Supplement 4 (11/1988) SERIES E: OVERALL NETWORK OPERATION, TELEPHONE SERVICE, SERVICE OPERATION AND HUMAN FACTORS Operation of the international service Treatment of calls considered as termina

2、ting abnormally ITU-T E.300-series Recommendations Supplement 4 (Formerly CCITT Recommendations) ITU-T E-SERIES RECOMMENDATIONS OVERALL NETWORK OPERATION, TELEPHONE SERVICE, SERVICE OPERATION AND HUMAN FACTORS INTERNATIONAL OPERATION Definitions E.100E.103 General provisions concerning Administratio

3、ns E.104E.119 General provisions concerning users E.120E.139 Operation of international telephone services E.140E.159 Numbering plan of the international telephone service E.160E.169 International routing plan E.170E.179 Tones in national signalling systems E.180E.189 Numbering plan of the internati

4、onal telephone service E.190E.199 Maritime mobile service and public land mobile service E.200E.229 OPERATIONAL PROVISIONS RELATING TO CHARGING AND ACCOUNTING IN THE INTERNATIONAL TELEPHONE SERVICE Charging in the international telephone service E.230E.249 Measuring and recording call durations for

5、accounting purposes E.260E.269 UTILIZATION OF THE INTERNATIONAL TELEPHONE NETWORK FOR NON-TELEPHONY APPLICATIONS General E.300E.319 Phototelegraphy E.320E.329 ISDN PROVISIONS CONCERNING USERS E.330E.349 INTERNATIONAL ROUTING PLAN E.350E.399 NETWORK MANAGEMENT International service statistics E.400E.

6、409 International network management E.410E.419 Checking the quality of the international telephone service E.420E.489 TRAFFIC ENGINEERING Measurement and recording of traffic E.490E.505 Forecasting of traffic E.506E.509 Determination of the number of circuits in manual operation E.510E.519 Determin

7、ation of the number of circuits in automatic and semi-automatic operation E.520E.539 Grade of service E.540E.599 Definitions E.600E.649 Traffic engineering for IP-networks E.650E.699 ISDN traffic engineering E.700E.749 Mobile network traffic engineering E.750E.799 QUALITY OF TELECOMMUNICATION SERVIC

8、ES: CONCEPTS, MODELS, OBJECTIVES AND DEPENDABILITY PLANNING Terms and definitions related to the quality of telecommunication services E.800E.809 Models for telecommunication services E.810E.844 Objectives for quality of service and related concepts of telecommunication services E.845E.859 Use of qu

9、ality of service objectives for planning of telecommunication networks E.860E.879 Field data collection and evaluation on the performance of equipment, networks and services E.880E.899 For further details, please refer to the list of ITU-T Recommendations. E.300 series Supplement 4 (11/1988) i Suppl

10、ement 4 to ITU-T E.300-series Recommendations Treatment of calls considered as terminating abnormally Source Supplement 4 was approved in Melbourne (1988) and originally published in Blue Book, Fascicle II.2. ii E.300 series Supplement 4 (11/1988) FOREWORD The International Telecommunication Union (

11、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 stand

12、ardizing 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

13、covered by the procedure laid down in WTSC Resolution 1. In some areas of information technology which fall within ITU-Ts 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 indi

14、cate 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 t

15、he 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

16、may be required to implement this publication. However, implementors are cautioned that this may not represent the latest information and are therefore strongly urged to consult the TSB patent database. ITU 2002 All rights reserved. No part of this publication may be reproduced, by any means whatsoe

17、ver, without the prior written permission of ITU. 1 E.300 series Supplement 4 (11/1988) Supplement 4 to ITU-T E.300-series Recommendations Treatment of calls considered as “terminating abnormally“ Country of destination Ceased line Line out of service Changed number Line connected to absent subscrib

18、ers service Faulty line Spare numbers (no subscriber) Spare level or spare code Congestion in the inland automatic system Afghanistan Ringing tone Busy tone Operator or ringing tone Busy tone Operator Operator or busy tone or ringing tone Busy tone Algeria Recorded announcement proposed Argentina Ri

19、nging tone Normally operator; exceptionally, ringing tone Ringing tone Busy tone Australia Operator, recorded announcement or number unobtainable tone Operator or recorded announcement Ringing tone, busy tone or recorded announcement Number unobtainable tone, ringing tone or recorded announcement Re

20、corded announcement or number unobtainable tone Congestion tone or recorded announcement Austria Operator or busy tone or special information tone, the latter if necessary also at the initiative of the operator Busy tone or special information tone Operator of recorded announcement or busy tone or s

21、pecial information tone; the latter may also be transmitted during the intervals of the announcement or if necessary on the initiative of the operator Operator or recorded announcement or special information tone to be transmitted during the intervals of the announcement or on the initiative of the

22、operator Ringing tone or busy tone Busy tone or special information tone Busy tone 2 E.300 series Supplement 4 (11/1988) Country of destination Ceased line Line out of service Changed number Line connected to absent subscribers service Faulty line Spare numbers (no subscriber) Spare level or spare c

23、ode Congestion in the inland automatic system Bahamas Recorded announcement Recorded announcement or unobtainable tone Operator intercepted Recorded announcement or unobtainable tone Fast busy tone Belgium Operator. In certain cases, ringing tone (information tone complemented by a recorded announce

24、ment is proposed) Ringing tone. In certain cases operator Operator for individual cases; recorded announcement in case of transfer of groups of subscribers Operator Ringing tone. In certain cases information tone or operator Ringing tone. In certain cases recorded announcement Information tone with

25、or without recorded announcement In certain cases congestion tone Brazil Number unobtainable tone or recorded announcement Operator or number unobtainable tone or recorded announcement Busy tone or ringing tone Number unobtainable tone or recorded announcement or operator Busy tone Burundi Informati

26、on tone Operator Ringing tone or busy tone Cameroon Ringing tone or recorded announcement Ringing tone or operator Ringing tone or busy tone Recorded announcement or ringing tone Recorded announcement or busy tone Canada Operator or recorded announcement* * In many cases, the recorded announcement i

27、s followed by cut-through to an operator New number from operator or automatic intercept system Service usually provided by persons not in the employ of the Telephone Company Operator, busy tone or ringing tone Operator or recorded announcement Operator, recorded announcement, busy tone, or re-order

28、 (congestion tone) Re-order (congestion) tone or recorded announcement Chile Ringing tone Ringing tone or recorded announcement Operator or recorded announcement Service not provided Ringing tone or busy tone Ringing tone Busy tone 3 E.300 series Supplement 4 (11/1988) Country of destination Ceased

29、line Line out of service Changed number Line connected to absent subscribers service Faulty line Spare numbers (no subscriber) Spare level or spare code Congestion in the inland automatic system Cte dIvoire Information tone with recorded announcement Service not provided. Ringing tone Information to

30、ne with recorded announcement Cuba Ringing tone Operator for individual cases; operator or recorded announcement in case of transfer of groups of subscribers Service not provided Ringing tone or busy tone Ringing tone Number unobtainable tone or congestion tone Busy tone Cyprus Number unobtainable t

31、one Ringing tone Operator Busy tone or ringing tone Number unobtainable tone Busy tone Denmark Information tone or ringing tone, or operator or recorded announcement Operator or recorded announcement Ringing tone Information tone or ringing tone Information tone Busy tone Djibouti Ringing tone of lo

32、w level Service not provided Ringing tone or busy tone Ringing tone of low level Busy tone El Salvador Busy tone Ringing tone Operator or ringing tone Busy tone or ringing tone Ringing tone Busy tone Fiji Operator or number unobtainable tone Number unobtainable tone Operator or number unobtainable t

33、one Service not provided Number unobtainable tone. Continuous, busy or ringing tone Ringing tone Number unobtainable tone Busy tone Finland Ringing tone or operator or recorded announcement Ringing tone or busy tone or recorded announcement Operator or recorded announcement or ringing tone Operator

34、or recorded announcement Ringing tone or busy tone Ringing tone or busy tone Busy tone or information tone Busy tone. In certain cases no tone 4 E.300 series Supplement 4 (11/1988) Country of destination Ceased line Line out of service Changed number Line connected to absent subscribers service Faul

35、ty line Spare numbers (no subscriber) Spare level or spare code Congestion in the inland automatic system France Operator or recorded announcement Operator Operator or recorded announcement or busy tone or ringing tone Operator or recorded announcement or busy tone or ringing tone Busy tone or recor

36、ded announcement Germany (Federal Republic of) Special information tone, alone or with a recorded announcement (use according to Recommendation E.180) Operator or recorded announcement Ringing tone or busy tone Ringing tone (alone without any other indication) or special information tone, alone or w

37、ith recorded announcement Special information tone, alone or with a recorded announcement (use according to Recommenda- tion E.180) Busy tone, congestion tone Ghana Number unobtainable tone Ringing tone and operator Number unobtainable tone Ringing tone or busy tone Number unobtainable tone Busy ton

38、e Guinea Ringing tone Operator Busy tone or ringing tone Number unobtainable tone Hungary Operator or ringing tone Ringing tone or recorded announcement Operator Busy tone or ringing tone Ringing tone Special information tone (Recommenda- tion E.180) Busy tone India Number unobtainable tone Operator

39、 or recorded announcement or number unobtainable tone Service not provided Number unobtainable tone Busy tone Ireland Number unobtainable tone Operator Service not provided Number unobtainable tone Busy tone 5 E.300 series Supplement 4 (11/1988) Country of destination Ceased line Line out of service

40、 Changed number Line connected to absent subscribers service Faulty line Spare numbers (no subscriber) Spare level or spare code Congestion in the inland automatic system Israel Information tone with a recorded announcement Busy tone or ringing tone Information tone with a recorded announcement Busy

41、 tone Busy tone alone or with a recorded announcement Italy Busy tone or ringing tone Operator or recorded announcement Operator or recorded announcement Busy tone or ringing tone Ringing tone Busy tone Jamaica Number unobtainable tone or congestion tone or recorded announcement Operator or recorded

42、 announcement Call answered by a private answering service Number unobtainable tone or congestion tone or busy tone or ringing tone Number unobtainable tone or congestion tone or recorded announcement Congestion tone or busy tone Japan Recorded announcement or operator Recorded announcement or ringi

43、ng tone Recorded announcement or busy tone or ringing tone Recorded announcement or operator Recorded announcement Busy tone or recorded announcement Kenya Number unobtainable tone Operator Number unobtainable tone Busy tone Korea (Rep. of) Ringing tone or recorded announcement Ringing tone or busy

44、tone Automatic intercept system or ringing tone Recorded announcement or ringing tone Busy tone or ringing tone Ringing tone or recorded announcement Busy tone or recorded announcement Busy tone or congestion tone Lebanon Ringing tone (recorded announcement proposed) Operator Ringing tone (recorded

45、announcement proposed) Ringing tone Special tone Busy tone 6 E.300 series Supplement 4 (11/1988) Country of destination Ceased line Line out of service Changed number Line connected to absent subscribers service Faulty line Spare numbers (no subscriber) Spare level or spare code Congestion in the in

46、land automatic system Liberia Ringing tone Service not provided Busy tone or ringing tone Ringing tone Number unobtainable tone Busy tone Luxembourg Ringing tone or recorded announcement or congestion tone Operator Ringing tone or busy tone Ringing tone or congestion tone Busy tone or recorded annou

47、ncement Busy tone or congestion tone Madagascar Ringing tone Operator Ringing tone Busy tone Malawi Ringing tone or number unobtainable tone Service not provided Ringing tone or number unobtainable tone Number unobtainable tone Busy tone Maldives Ringing tone Busy tone or ringing tone Ringing tone N

48、umber unobtainable tone Busy tone Malta Operator or number unobtainable tone Number unobtainable tone Operator Call answered by an operator or a private answering service or a call transferred to another subscriber Number unobtainable tone Busy tone Mauritania Ringing tone or operator Operator Ringi

49、ng tone or busy tone Ringing tone Busy tone Mexico Recorded announcement or ringing tone Recorded announcement Ringing tone or recorded announcement Ringing tone or busy tone Ringing tone Recorded announcement or busy tone Recorded announcement or busy tone 7 E.300 series Supplement 4 (11/1988) Country of destination Ceased line Line out of service Changed number Line connected to absent subscribers service Faulty line Spare numbers (no subscriber) Spare level or spare code Congestion in the inland automatic system Morocco