ITU-T E.423-1988 运营者建立的话务监视 Observations on traffic set up by operators

pdf标准 ITU-T E.423-1988 运营者建立的话务监视 Observations on traffic set up by operators

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国外分类,ITU,ITU-T(电信标准分局),itu,运营,运营者,建立,的话,监视,observations,on,traffic,set,up,by,operators

INTERNATIONAL TELECOMMUNICATION UNION )45 4 % TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU 4%,%0(/.% .%47/2+ !.$ )3$. 15!,)49 /& 3%26)#% .%47/2+ -!.!'%-%.4 !.$ 42!&&)# %.').%%2).' /"3%26!4)/.3 /. 42!&&)# 3%4 50 "9 /0%2!4/23 )45 4 Recommendation % (Extract from the "LUE "OOK) NOTES 1 ITU-T Recommendation E.423 was published in Fascicle II.3 of the Blue Book. This file is an extract from the Blue Book. While the presentation and layout of the text might be slightly different from the Blue Book version, the contents of the file are identical to the Blue Book version and copyright conditions remain unchanged (see below). 2 In this Recommendation, the expression “Administration” is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. © ITU 1988, 1993 All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the ITU. Recommendation E.423 Fascicle II.3 - Rec. E.423 OBSERVATIONS ON TRAFFIC SET UP BY OPERATORS 1 Comments concerning the use of Table 1/E.423 1.1 This table summarizes observations relating to manual and semi-automatic outgoing traffic originated by operators. These observations will be made, if possible, during the whole call duration. Observations for the categories 1 to 7 may be omitted in case of semi-automatic service, if there is no problem regarding the efficiency of international circuits. 1.2 Administrations should, if possible, make a distinction between the different types of call, e.g. station-tostation, personal and collect calls; they should use a separate column for each under the heading “Type of call”. 1.3 For collect calls, the times to be recorded will be those observed in the country where the call request was made. 1.4 It is recommended that these observations be spread over the whole day. 1.5 Each outgoing Administration will select the international circuit groups on which observations should be carried out. 1.6 In completing this table, reference should be made to the following explanations: 2 How to fill in Table 1/E.423 (Traffic observations determined by the operators) Category 1 – This category should show the mean duration of calls observed which are successful and have been charged for (“effective” calls). Category 2 – This category will show the mean chargeable duration of all effective calls observed. Category 3 – This category will show, for each type of observed call, the average time per effective call during which the international circuit has been occupied for manœuvres or for call preparation. This average should be based on the time during which the international circuit is held: a) to obtain information concerning the called number; b) to obtain information about routing and trunk codes; c) to call operators, in the incoming international exchange; d) to exchange information on how to set up the call; e) to (or attempt to) obtain the called number even when it is engaged or does not reply; f) to (or attempt to) obtain the called person (in personal calls); g) between replacement of the receiver by the called person and release of the circuit; h) because the operator is holding the circuit (whether she is on the line or not) and for any other reasons for which the circuit is engaged. Fascicle II.3 - Rec. E.423 1 TABLE 1/E.423 Observations on traffic set up by operators International outgoing exchange: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . Circuit group: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . semi - automatic a)  Service  manual a)  Period from . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .to . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Type of callb) Category Ordinary Personal 1. Mean call duration – in seconds 2. Mean chargeable duration – in seconds 3. Mean holding time of circuits for manoeuvres and preparation of calls – in seconds 4. Number of effective calls observed 5. Mean number of times the international circuit was seized per effective call 6 Mean number of “ attempts ” per effective call 7. Percentage of calls set up at the first “ attempt ” 8. Time-to-answer by operators Total number of calls answered and unanswered Calls unanswered (abandoned calls) Calls answered Operators: Mean waiting time in seconds under 15 seconds in 15 to 30 seconds after 30 seconds within 30 seconds after

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