1、INTERNATIONAL TELECOMMUNICATION UNION)45G134 1 TELECOMMUNICATIONSTANDARDIZATION SECTOROF ITU%.%2!,G0G02%#/-%.$!4)/.3G0G0/.G0G04%,%0(/.%37)4#().G0G0!.$G0G03).!,).#,!53%3G0G0!00,)#!“,%G0G04/G0G0)45G134G0G034!.$!2$3934%-34(%G0G03%.$).G0G13G0&).)3(%$G0G03).!,)45G134G0G0RecommendationG0G01 (Extract from
2、the “LUEG0“OOK)NOTES1 ITU-T Recommendation Q.106 was published in Fascicle VI.1 of the Blue Book. This file is an extract fromthe Blue Book. While the presentation and layout of the text might be slightly different from the Blue Book version, thecontents of the file are identical to the Blue Book ve
3、rsion and copyright conditions remain unchanged (see below).2 In this Recommendation, the expression “Administration” is used for conciseness to indicate both atelecommunication administration and a recognized operating agency. ITU 1988, 1993All rights reserved. No part of this publication may be re
4、produced or utilized in any form or by any means, electronic ormechanical, including photocopying and microfilm, without permission in writing from the ITU.Fascicle VI.1 - Rec. Q.106 1Recommendation Q.106Fascicle VI.1 - Rec. Q.1061.6 THE SENDING-FINISHED SIGNALIn semi-automatic working, when the int
5、ernational outgoing operator has finished keying or dialling, sheoperates a special button on her keyboard or a key so that, after the number, a local signal which is called a sending-finished signal is sent to the outgoing equipment to show that there are no more digits to follow. In automatic work
6、ing,subscribers cannot show when they have finished dialling the number, and so this signal does not apply.Note - In semi-automatic working, local sending of the sending-finished signal will cause an end-of-pulsingsignal to be sent on the international circuit 1)or signalling channel. This has the s
7、ame function and shows theincoming equipment that there are no more digits to be received. In some cases also in automatic working, when theoutgoing equipment decides that there are no more digits to follow, an end-of-pulsing signal is sent on the internationalcircuit or signalling channel, for example in the ST condition of System No. 5 (see Recommendation Q.152)._1)In System R2 the sending of end-of-pulsing signal (code 15) may not occur if a number-received indication has already been received.
