1、ITU-T RECMN*Q-b75 73 = 4862573 0584908 883 INTERNATIONAL TELECOMMUNICATION UNION ITU=T TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU INTERWORKING OF SIGNALLING SYSTEMS Q.695 (03/93) INTERWORKING OF SIGNALLING SYSTEMS - LOGIC PROCEDURES FOR INTERWORKING OF SIGNALLING SYSTEM No. 7 (ISUP) TO R2 ITU-T
2、 Recommendation Q.695 (Previously “CCITT Recommendation”) ITU-T RECMNJQ-695 93 W 4862591 0584909 718 FOREWORD The ITU Telecommunication Standardization Sector (IT-T) is a permanent organ of the International Telecom- munication Union. The ITU-T is responsible for studying technical, operating and ta
3、nff questions and issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Conference (WTSC), which meets every four years, established the topics for study by the ITU-T Study Groups which, in their turn, produc
4、e Recommendations on these topics. ITU-T Recommendation 4.695 was prepared by the IT-T Study Group XI (1988-1993) and was approved by the WTSC (Helsinki, March 1-12, 1993). NOTES 1 As a consequence of a reform process within the International Telecommunication Union (ITU), the CCIIT ceased to exist
5、as of 28 February 1993. In its place, the ITU Telecommunication Standardization Sector (ITU-T) was created as of 1 March 1993. Similarly, in this reform process, the CCIR and the IFRB have been replaced by the Radiocommunication Sector. In order not to delay publication of this Recommendation, no ch
6、ange has been made in the text to references containing the acronyms “CC, CCIR or IF” or their associated entities such as Plenary Assembly, Secretanat, etc. Future editions of this Recommendation will contain the proper terminology related to the new ITU structure. 2 telecommunication administratio
7、n and a recognized operating agency. In this Recommendation, the expression “Administration” is used for conciseness to indicate both a O IT 1994 All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopyi
8、ng and microfilm, without permission in writing from the ITU. ITU-T RECMNUQ.695 93 qBb259L 0584930 43T Recommendation Q.695 INTERWORKING OF SIGNALLING SYSTEMS - LOGIC PROCEDURES FOR INTERWORKING OF SIGNALLING SYSTEM No. 7 (ISUP) TO R2 (Helsinki, 1993) T1141650W601 State nunbsr State cissth Sheet ref
9、wewe o1 Waii for call sei tp information 02 Wait for addresscompl&e 03 Wait for answer 04 Answered 1 05 Clear-back 6 FIGURE 1Q.695 State overview diagram for interworking of Signalling System No. 7 (ISUP) to R2 Recommendation 4.695 (03/93) 1 ITU-T RECMN*Q.b95 93 = 48b259L 05849LL 37b comector refere
10、nce E , Cc No. 7 (ICUP) Waitforcall set up info. (2 SPITE 53 Analyse info received BTTE and FITE outgoing R2 FIGURE 3/Q.695 (sheet 1 of 6) Interworking of Signalling SystemNa 7 (ISVP) to R2 2 Recommendation Q.695 (OW93) E FITE 5 ITU-T RECMN*Q.b95 93 m 4862593 0584932 202 m FITE 8 Connector reference
11、 03 FIGURE 3/Q.695 (sheet 2 of 6) Interworking a Sigdi System Na 7 (ISUP) to R2 Recommendation 4.695 (03/93) 3 ITU-T RECMN*Q=b95 93 48b2593 0584933 149 2*3(2ro 02 wait for addm camplete 4 FE 1 FITE 25 flTE 24 I I FITE 1 0 I NOTE - Sufficient FITES must be withheld to prevent an address-complete sign
12、ai being received before (continuity) has been established when this is perfbmed. FIGURE 3/Q.695 (sheet 3 of 6) Inteworking of Signalling System Na 7 (ISUP) toR2 4 Recommendation 9.695 (OY93) ITU-T RECMN*Q.b95 93 48b2571 0584714 085 Connector reference C, A 2 SPITE 53 (Table 1) (7) Waitfor “YI (Tabl
13、e 3) i:- 66 FIGURE 314.695 (sheet 4 of 6) Interworkiug of Signailhg System Na 7 (ISP) to R2 Recommendation Q.695 (03/93) 5 ITU-T RECMN*Q.b95 93 m 4862591 0584915 TIL Connector reference A c FITE 22 0 13,15,16,17,20 w SPITE 53 (Table 2) (-) T113086091/M6 FIGURE 3/Q.695 (sheet 5 of 6) interwarking d S
14、ignalling System No. 7 SUP) to R2 6 Recommendation Q.695 (0393) ITU-T RECMN*Q.b95 93 W 48h259L 058V9Lb 958 = connector reference FITE 22 Q !,I BITE 25 BITE 25 4 6 05 Clear-back i FIGURE 314.695 (sheet 6 of 6) interworking d Signalling System Na 7 (iSP) to R2 Recommendation Q.695 (03/93) 7 ITU-T RECM
15、N*Q.b95 93 = 4862593 0584917 894 Backward call indicators in ACM Charging indicator Called partys status Called partys category Interworking indicator TABLE UQ.695 2 10 O0 O0 1 I Received BITE I TABLE 2/Q.695 Cause sent I Location I R-ivedBITE (release) I 13 11 12 15 16 17 20 34 34 34127 a) 1 17 27 4 1010 1010 1010/0111 1010 1010 1010 1010 I a) ny in timeout expiry. TABLE 3/Q.695 Backward caii indicators in ANM ANM without backward call indicators is to be sent 8 Recommendation Q.695 (OW93)
