ITU-T Q 656-1993 Interworking of Signalling Systems - Logic Procedures for Interworking of Signalling System No 6 to Signalling System No 7 (ISUP) - Interworking of Signalling Syst.pdf

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1、ITU-T RECMN*Q*b5b 93 4862591 0584886 390 INTERNATIONAL TELECOMMUNICATION UNION ITU-T TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU INTERWORKING OF SIGNALLING SYSTEMS Q.656 (03/93) INTERWORKING OF SIGNALLING SYSTEMS - LOGIC PROCEDURES FOR INTERWORKING OF SIGNALLING SYSTEM No. 6 TO SIGNALLING SYSTEM

2、 No. 7 (ISUP) ITU-T Recommendation Q.656 (Previously “CCIlT Recommendation“) ITU-T RECMN*Q-b56 93 4862593 0584896 23T m FOREWORD The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of the International Telecom- munication Union. The ITU-T is responsible for studying technic

3、al, operating and tariff 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,

4、in their turn, produce Recommendations on these topics. ITU-T Recommendation 4.656 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 C

5、CITT ceased to exist as of 28 February 1993. In its place, the IT 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 Similarly, in this reform process, the CCIR and the IFRB have been replaced by the Radiocommunication Sector.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 R

6、ecommendation, no change has been made in the text to references containing the acronyms “CCITT, CCIR or IFRB” or their associated entities such as Plenary Assembly, Secretariat, etc, Future editions of this Recommendation will contain the proper terminology related to the new ITU structure. 2 telec

7、ommunication administration and a recognized operating agency. In this Recommendation, the expression “Administration” is used for conciseness to indicate both a O ITU 1994 All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronic or mecha

8、nical, including photocopying and microfilm, without permission in writing from the ITU. ITU-T RECMN*Q.bSb 93 m 48b259L 0584897 L7b m Recommendation 4.656 INTERWORKING OF SIGNALLING SYSTEMS - LOGIC PROCEDURES FOR INTERWORKING OF SIGNALLING SYSTEM No. 6 TO SIGNALLING SYSTEM No. 7 (ISUP) (Helsinki, 19

9、93) State numr Skie escrtia, O0 Idle o1 Wait for CPCI-FITE o2 Wal for addresscomplete o3 Wait for answer o4 Answered o5 Wait for resune Sheet number 192, 3,495 1 2 4 4 5 FIGURE 1lQ.656 State overview diagram for interworking of Signalling System No. 6 to SignaMing System No. 7 (ISUP) FIGURE YQ.656 (

10、Reserved for future notes) Recommendation Q.656 (0-3) 1 ITU-T RECMN+d.b5b 1 Activate SS No. 6 SS Na 7 (ISUP) procedure CPCCFITE FITES 9-1 3, 17-19 outgoing SS No. 7 procedure SPITE 52 FIGURE 314.656 (sheet 1 of 5) interworking of Signalling System Na 6 to Sigmiling System No. 7 (ISUP) 2 Recommendati

11、on Q.656 (03/93) ITU-T RECMN*Q.b5b 93 = 4862591 0584899 T49 1,2 (x 2), 3 o2 Wait for address complete I FITE 24 FITE 1 7 FITE 22 FITE 24 9 T112497O-SWd3 NOTE - In principle, FITE 22 should result in cause 16. However, in mes where FTE 22 results from a timeout expiry, cause 127 shauld be sent. FIGUR

12、E 3/Q.656 (sheet 2 of 5) Interworking at Signalling System Na 6 to Sigaalling System Na 7 (IsP) Recommendation Q.656 (0393) 3 ITU-T RECMN*Qm656 93 m 4862591 0584900 590 m 2 1 3.4 L c 2 I , I, I I 62 BITE n c b FIGURE 3/Q.656 (sheet 3 of 5) Interworking of Signalling System Na 6 to Signalling System

13、Na 7 (i”) 4 Recommendation Q.656 (03/93) ITU-T RECMN+Q.b5b 93 4862573 0584903 427 P-7 Wait for I BITE Y SPITE 53 BITE n Answered 0 05 NOTE - In principle, FITE 22 should result in cause 16. However. in cases where FITE 22 results from a timeout expiry, cause 127 should be sent. FiGURE 3/Q.656 (sheet

14、 4 of 5) Interworking of Signailing System Na 6 to Signailing System Na 7 (ISUP) Recommendation Q.656 (0393) 5 ITU-T RECMN+Q.bSb 93 = 4862592 0584902 3b3 = FITE 22 FITE 23 BITE 24 5 6 4 6,4 BITE Z 1 - (Note) FITE 23 BITE 24 FITE Z FITE 23 E= O0 Idle I v I BITE 25 c 05 wait for resume NOTE - in princ

15、iple, FITE 22 should result in cause 16. However, in cases where from a timeout expiry, cause 127 should be sent. 22 results FIGURE 3/Q.656 (sheet 5 of 5) Interwwkhg of Signalling System Na 6 to Signalling System Na 7 (ISUP) 6 Recommendation Q.656 (0-3) ITU-T RECMN+Q-bSb 93 m 48b259L 058Y903 2TT m R

16、eceived FITE 9 10 11 12 13 17 18 19 TABLE UQ.656 CPC 1 2 3 4 5 10 11 12 FITE A construction - Interworking of Signalling System No. 6 to Signalling System No. 7 (HUP) SPITE 36 CCH Yes No o1 10 SPITE 22 Yes No I SPITE 20 I SI I NA1 100 o1 1 Yes o1 No O0 1 TMR= 11 CPC Calling partys category CCH Conti

17、nuity check indicator NA1 Nature of address indicator SI Satellite indicator ECI Echo control indicator TMR Transmission medium requirement Recommendation Q.656 (OY93) 7 ITU-T RECMN*Q.b5b 93 = 4862591 0584904 136 D Received BITE Y CH - O0 o1 10 TABLE 2/Q.656 BITE X analysis - Interworking of Signaii

18、ing System No. 6 to Signalling System No. 7 (ISUP) BITE n to be sent BITE 22 BITE 22 BITE 23 BITE 22 CH O0 O0 O0 O0 O0 O0 o1 o1 o1 o1 o1 o1 10 10 10 10 IO IO Received BITE X ST I CAT O0 O0 O0 o1 o1 o1 O0 O0 O0 o1 o1 o1 O0 O0 O0 O1 o1 o1 O0 o1 10 O0 o1 10 O0 o1 10 O0 o1 10 O0 o1 10 O0 o1 IO BITE n to

19、 be sent BITE 2 + BITE 27 BITE 2 + BITE 27 BITE 4 BITE 5 BITE 5 BITE 7 BITE 3 BITE 3 BITE 4 BITE 6 BITE 6 BITE 7 BITE 2 + BITE 27 BITE 2 + BITE 27 BITE 4 BITE 5 BITE 5 BITE 7 CH Charge indicator ST Called partys status indicator CAT Called partys category indicator TABLE 3fQ.656 BITE Y analysis - In

20、terworking of Signalling System No. 6 to Signalling System No. 7 (ISUP) 8 Recommendation Q.656 (0-3) TABLE 414.656 Received BITE 2 Cause 42 34 28 1 17 27 31 4 Other CONNECT analysis - Interworking of Signalling System No. 6 to Signalling System No. 7 (ISUP) Sent BITE n 9 10 14 15 16 17 19 20 19 Rece

21、ived CONNET fields CH O0 O0 O0 O0 O0 O0 o1 o1 o1 o1 o1 o1 10 10 10 10 IO 10 ST O0 O0 O0 o1 o1 o1 O0 O0 O0 o1 o1 o1 O0 O0 O0 o1 o1 o1 CAT O0 o1 IO O0 o1 10 O0 o1 10 O0 o1 10 O0 o1 10 O0 o1 10 BITE J BITE K BITE 2 +BITE 27 BITE 2 + BITE 27 BITE 4 BITE 5 BITE 5 BITE 7 BITE 3 BITE 3 BITE 4 BITE 6 BITE 6

22、 BITE 7 BITE 2 + BITE 27 BITE 2 + BITE 27 BITE 4 BITE 5 BITE 5 BITE 7 BITE 22 BITE 22 BITE 22 BITE 22 BITE 22 BITE 22 BITE 23 BITE 23 BITE 23 BITE 23 BITE 23 BITE 23 BITE 22 BiTE 22 BITE 22 BITE 22 BITE 22 BITE 22 NOTE - In this proposal, an answer, no charge BITE is generated when a no charge infor

23、mation is carried through the connect message. TABLE 514.656 Received RELEASE analysis before ACM - Interworking of Signalling System No. 6 to Signalling System No. 7 (ISUP) Recommendation 4.656 (03/93) 9 ITU-T RECMNtQ-b5b 93 W 4862591 0584906 TO9 Sent BITE n Received BITE Z Cause Any 19 34 10 31 19 Other 19 TABLE WQ.656 Received RELEASE analysis, after ACM and before ANM - Interworking of Signalling System No. 6 to Signailing System No. 7 (ISUP) if ST = subscriber free if ST # subscriber free 10 Recommendation Q.656 (03/93)