1、INTERNATIONAL TELECOMMUNICATION UNION ITU-T TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU INTERWORKING OF SIGNALLING SYSTEMS Q.624 (03/93) INTERWORKING OF SIGNALLING SYSTEMS - LOGIC PROCEDURES FOR OUTGOING SIGNALLING SYSTEM No. 7 (TUP) ITU-T Recommendation Q.624 (Previously “CCITT Recommendation“)
2、 ITU-T RECMN*Q-b24 93 m 4862593 0589332 3TT m FOREWORD The U Telecommunication Standardization Sector (ITU-T) is a permanent organ of the International Telecom- munication Union. The ITU-T is responsible for studying technical, operating and tariff questions and issuing Recommendations on them with
3、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, produce Recommendations on these topics. ITU-T Recommendation
4、 Q.624 was revised by the ITU-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 CCIT ceased to exist as of 28 February 1993. In its place, the ITU Telecommun
5、ication 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 Similarly, in this reform process, the CCIR and the IFRB have been replaced by the Radiocommunication Sector.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 change has been made in the text to references containing
6、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 telecommunication administration and a recognized operating agency. In this Recom
7、mendation, 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 my means, electronic or mechanical, including photocopying and microfilm, without permission in writing fr
8、om the ITU. ITU-T RECMN*Q.b24 93 48b2593 0589333 236 Recommendation Q.624 INTERWORKING OF SIGNALLING SYSTEMS - LOGIC PROCEDURES FOR OUTGOING SIGNALLING SYSTEM No. 7 (TUP) (Melbourne, 1988; revised Helsinki at 1993) State nunber O0 o1 o2 o3 o4 05 o6 07 08 o9 state dasCibn Idle Wait for FITES d IAMIIA
9、I Wait for mtinultycheck Wait for continuity indicator Wait for address compiete wait for answer Wait for answer (subscriber free) AnSWWed Cla-back Wait for releaseguard She& reference Tmersnrnnr?g 1,lO 1 3 3 7 7 9 9 9 10 11 t, t2 t2 FIGURE VQ.624 State overview diagram for outgoing Signailing Syste
10、m No. 7 (“P) m Supervisory timers for outgoing Signailing System No. 7 t,=2s 7.4.114.724 t2 = 20-30 s 6.4.11Q.724 t3 = 4- 15 s 6.2.314.724 4 = I min 6.2.31Q.724 Procedures not shown The following procedures, not directly relevant to interworking, are not shown in the logic procedures: - Dual seizure
11、. - Blocking and unblocking sequences. - Reset signals. - Test call procedures. - Out of service. Signal abbreviations used The signal abbreviations used correspond to those of the Signalling System No. 7 Specifications and are listed in Figure UQ.614. FIGURE ZQ.624 Notes to outgoing Signalling Syst
12、em No. 7 (TUP) Recommendation Q.624 (03/93) 1 E ti3n 22 Pt O O ITU-T RECMN*Q.b24 93 m 48b2593 0589334 172 m rn Cu I c p “ -8 5 O z 2 Recommendation Q.624 (03/93) 8 w LL -t z a! , “2 o “2 Al -J o o o z Recommendation Q.624 (03/93) 3 ( 17, I 1. 4, 14, 4, 1 ! n continuity indicator SPITE 44 Analyse inf
13、o U requested BITE 19 BITE 31 FITE 31 I - - Note Construct Ti 15784093rd04 NOTE - Digits should be forwarded to the outgoing link as soon as they are available, multi digit SAMs should only be sent if more than one address digit is awaiting. FLGURE 3/Q.624 (sheet 3 of IO) Outgoing Signaiii System No
14、. 7 (TUP) 4 Recommendation 4.624 (03/93) ITU-T RECMNUQ-624 93 48b259L 0589137 981 Connector reference c, c 7 3 3 continuiiycheck for 1-0 failure SPITE 44 information requested f BITE 31 I o I les I SPITE 48 GSM message o FIGURE 3lQ.624 (sheet 4 of IO) Outgoing Signalling System Na 7 (TP) Recommendat
15、ion Q.624 (03/93) 5 ITU-T RECMN+Q-h24 93 9 4862593 0589138 818 9 W Q w- t m w- v) 6 Recommendation Q.624 (03193) connector reference CFL ACB DPN 5w BITE 19 111 576MWdO7 BITE 35 BITE 36 FIGURE 3/Q.624 (sheet 6 of 10) Outgoing Signalling System No. 7 (Tup) Recommendation 4.624 (0-3) 7 ITU-T RECMN*Q-b2
16、4 93 48b2593 0589340 47b Ln w t rn V o m N W LL t A z W b 1-s- (u W 7 s* 8- u m (u W :- li- 9- 8 Recommendation Q.624 (03/93) ITU-T RECMN*Q-b24 93 4862593 0589143 302 a z Recommendation Q.624 (03/93) 9 ITU-T RECMN*Q-b24 93 4862573 0547342 249 = ANC Connector reference ANN CFL FITE 23 1 8, 15, 7, l!
17、l! 1 l! 8. I I I FIGURE 3/Q. 624 (sheet 9 of 1 O) Outgoing Signalling System Na 7 (TUP) BiTE 22 BITE 23 BITE 19 FOT FITE 22 10 Recommendation Q.624 (03193) I ITU-T RECMN*Qmb24 93 4862593 0589343 38.5 15 10 5 10 FIGURE 31Q.624 (sheet 10 of 10) Outgoing Signalling System No. 7 (TUP) Recommendation Q.624 (OY93) 11
