1、INTERNATIONAL TELECOMMUNICATION UNION)45G134 1 TELECOMMUNICATIONSTANDARDIZATION SECTOROF ITU).4%27/2+).G0G0/&G0G03).!,).G0G03934%-3,/)#G0G002/#%$52%3G0G0&/2G0G0).#/-).3).!,).G0G03934%-G0G02 )45G134G0G0RecommendationG0G01 (Extract from the “LUEG0“OOK)NOTES1 ITU-T Recommendation Q.616 was published in
2、 Fascicle VI.6 of the Blue Book. This file is an extract from theBlue 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 version and copyright conditions remain unchanged (see below).2 In
3、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 reproduced or utilized in any form or by any means, electronic orme
4、chanical, including photocopying and microfilm, without permission in writing from the ITU.Fascicle VI.6 - Rec. Q.616 1Recommendation Q.616LOGIC PROCEDURES FOR INCOMING SIGNALLING SYSTEM R2Supervisory timerst1= 8-24 s Recommendation Q.476, 5.5.2.1Procedures not shownThe following procedures, not dir
5、ectly relevant to interworking, are not shown in the logic procedures:- Interrupt control procedures (analogue version).- Transmission fault procedures (digital version).- Test call procedures.- Analogue T2release guard timing.- Optional forward transfer procedure.- Blocking and unblocking sequences.FIGURE 2/Q.616Notes to incoming Signalling System R22 Fascicle VI.6 - Rec. Q.616Fascicle VI.6 - Rec. Q.616 34 Fascicle VI.6 - Rec. Q.616Fascicle VI.6 - Rec. Q.616 5
