1、CCITT RECMN*E.230 92 m 4862593 0574382 232 INTERNATIONAL TELECOMMUNICATION UNION CCITT THE INTERNATIONAL TELEGRAPH AND TELEPHONE CONSULTATIVE COMMITTEE TELEPHONE NETWORK AND ISDN OPERATION, NUMBERING, ROUTING AND MOBILE SERVICE E.230 (08192) CHARGEABLE DURATION OF CALLS Recommendation E.230 Geneva,
2、1992 CCITT RECMN*E.230 92 YB62591 057Y383 179 INTERNATIONAL TELECOMMUNICATION UNION CCITT THE INTERNATIONAL TELEGRAPH AND TELEPHONE CONSULTATIVE COMMITTEE TELEPHONE NETWORK AND ISDN OPERATION, NUMBERING, ROUTING AND MOBILE SERVICE E.230 (08/92) CHARGEABLE DURATION OF CALLS Recommendation E.230 Genev
3、a, 1992 CCITT RECMNaE.230 92 E 48b259L 0574384 005 FOREWORD The CC (the International Telegraph and Telephone Consultative Committee) is a permanent organ of the International Telecommunication Union (rnr). CCI“ is responsible for studying technical, operating and tariff questions and issuing Recomm
4、endations on them with a view to standardizing telecommunications on a worldwide basis. The Plenary Assembly of CCI?T which meets every four years, establishes the topics for study and approves Recommendations prepared by its Study Groups. The approval of Recommendations by the members of CCITT betw
5、een Plenary Assemblies is covered by the procedure laid down in CCT Resolution No. 2 (Melbourne, 1988). Recommendation E.230 was revised by Study Group I and was approved under the Resolution No. 2 procedure on the 4th of August 1992. CCIT NOTE In this Recommendation, the expression “Administration”
6、 is used for conciseness to indicate both a telecommunication administration and a recognized private operating agency. O IT 1992 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
7、 without permission in writing from the ITU. CCITT RECMN*E.230 92 4862591 0574385 T41 References Recommendation E.230 I il CCIT Recommendation Definitions of terms used in internutionul telephone operation, Blue Book, Rec. E. 100, ITLJ, Geneva 1988. CHARGEABLE DURATION OF CALLS i31 CCITT Recommenda
8、tion Devices for measuring und recording cull durations, Blue Book, Rec. E.261, ITU, Geneva 1988. (revised 1992) 1 International operators should allow no tolerance in their assessment of the chargeable duration of calls. 2 Metering devices controlled by operators should be rapid in action and have
9、the utmost accuracy. 3 In the automatic service (and, in the case of station calls, in the manual and semiautomatic service) the chargeable duration should begin from the receipt of the answer signai from the called station (see the definitions in Recommendation E.100 l), since the existence of an u
10、nchargeable call period, however short, might lead to misuse of the service for the transmission of short messages without payment. The chargeable duration ends when the caller gives the clear-forward signal or, if the caller has not replaced the receiver, when the call is cleared down by an operato
11、r in the performance of her duties in manual or semiautomatic working, or as a result of a clearing signal from the called party when an exchange clears the connection. In the latter case, the chargeable duration ends with some slight delay following receipt of the clearing signal from the called pa
12、rty. It is generally the responsibility of the originating Administration to measure and record the chargeable duration of calls in accordance with Recommendations E.260 2 and E.261 3. Accounting principles this traffk, between Administration, shouId be in accordance with Recommendations D.150 4 and
13、 D.178 5. In the unlikely event that the call chargeable duration recording mechanism fails, then accounting for the period of lost traffic records should be in accordance with the provisions of Recommendation D.150 4 4 charging begins. It is unnecessary to inform the person making an international
14、call of the exact moment at which the 5 periods unless a prior agreement to this effect has been reached with the other Administrations. An Administration should not give its operators insuuctions to advise subscribers of successive charging 6 Nevertheless, if some Administrations consider it desira
15、ble to indicate to callers the expiry of each charging period, an automatic device, or one controlled by the operator at the originating international exchange, can be used for this purpose, on condition that this indication is regarded merely as an advice which is not binding on the Administration
16、as regards charging. Pl CCIT Recommendation Basic technical problems concerning the measurement and recording of cull durations, Blue Book, Rec. E.260, ITU, Geneva 1988. i41 CCiT Recommendation New sistem for accounting in international telephony, Rec. D.150, ITU, Geneva 1992. 51 CCIIT Recommendation Monthly uccounts for semi-automatic telephone culls (ordinary und urgent culls, with or without special facilities), Blue Book, Rec. D.178, lTU, Geneva 1988. Recommendation E.230 (OWZ) 1
