ITU-T Q 2762-1999 General Functions of Messages and Signals of the B-ISDN User Part (B-ISUP) of Signalling System No 7 Series Q Switching and Signalling Broadband ISDN - B-ISDN App (S.pdf

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1、INTERNATIONAL TELECOMMUNICATION UNION ITU-T TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU Q.2762 (1 211 999) SERIES Q: SWITCHING AND SIGNALLING Broadband ISDN - B-ISDN application protocols for the n e two r k s i g n a I I i n g General functions of messages and signals of the B-ISDN user part (B

2、-ISUP) of Signalling System No. 7 ITU-T Recommendation Q.2762 (Formerly CCITT Recommendation) ITU-T Q-SERIES RECOMMENDATIONS SWITCHING AND SIGNALLING SIGNALLING IN THE INTERNATIONAL MANUAL SERVICE INTERNATIONAL AUTOMATIC AND SEMI-AUTOMATIC WORKING FUNCTIONS AND INFORMATION FLOWS FOR SERVICES IN THE

3、ISDN SPECIFICATIONS OF SIGNALLING SYSTEMS No. 4 AND No. 5 SPECIFICATIONS OF SIGNALLING SYSTEM No. 6 SPECIFICATIONS OF SIGNALLING SYSTEM RI SPECIFICATIONS OF SIGNALLING SYSTEM R2 DIGITAL EXCHANGES INTERWORKING OF SIGNALLING SYSTEMS SPECIFICATIONS OF SIGNALLING SYSTEM No. 7 DIGITAL SUBSCRIBER SIGNALLI

4、NG SYSTEM No. 1 PUBLIC LAND MOBILE NETWORK INTERWORKING WITH SATELLITE MOBILE SYSTEMS INTELLIGENT NETWORK CLAUSES APPLICABLE TO ITU-T STANDARD SYSTEMS SIGNALLING REQUIREMENTS AND PROTOCOLS FOR IMT-2000 BROADBAND ISDN General aspects Signalling ATM adaptation layer (SAAL) Signalling network protocols

5、 Common aspects of B-ISDN application protocols for access signalling and network signalling and interworking Q.1-Q.3 Q.4-Q. 59 Q.60-Q.99 Q.100-Q.119 Q. 120-Q.249 Q.250-Q.309 Q.310-Q.399 Q.400-Q.499 Q.500-Q.599 Q.600-Q.699 Q.700-Q.849 Q.850-Q.999 Q. 1000-Q. 1 O99 Q.1100-Q.1199 Q. 1200-Q. 1699 Q. 170

6、0-Q. 1799 Q.2000-Q.2999 Q.2000-Q.2099 Q.21 00-Q.2199 Q.2200-Q.2299 Q.2600-Q.2699 B-ISDN application protocols for the network signalling Q.270W.2899 B-ISDN application protocols for access signalling Q.2900-Q.2999 For further details, please rer to the list of ITD-T Recommendations. ITU-T RECOMMENDA

7、TION 4.2762 GENERAL FUNCTIONS OF MESSAGES AND SIGNALS OF THE B-ISDN USER PART (3-ISUP) OF SIGNALLING SYSTEM NO. 7 Summary This Recommendation is one of a set of Recommendations that describe the Broadband ISDN User Part. It describes the elements of signalling information and their function used by

8、the B-ISDN User Part protocol to support basic bearer services and supplementary services for Capability Set 1 B-ISDN applications. Source ITU-T Recommendation 4.2762 was revised by ITU-T Study Group 11 (1997-2000) and was approved under the WTSC Resolution No. 1 procedure on 3 December 1999. Recomm

9、endation 4.2762 (12/1999) 1 FOREWORD ITU (International Telecommunication Union) is the United Nations Specialized Agency in the field of telecommunications. The ITU Telecommunication Standardization Sector (U-T) is a permanent organ of the ITU. The U-T is responsible for studying technical, operati

10、ng 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, establishes the topics for study by the ITU-T Study Groups which, in their tu

11、rn, produce Recommendations on these topics. The approval of Recommendations by the Members of the ITU-T is covered by the procedure laid down in WTSC Resolution No. 1. In some areas of information technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative b

12、asis with IS0 and IEC. NOTE In this Recommendation, the expression “Administration“ is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. INTELLECTUAL PROPERTY RIGHTS The ITU draws attention to the possibility that the practice or implementati

13、on of this Recommendation may involve the use of a claimed Intellectual Property Right. The U takes no position concerning the evidence, validity or applicability of claimed Intellectual Property Rights, whether asserted by U members or others outside of the Recommendation development process. As of

14、 the date of approval of this Recommendation, the U had not received notice of intellectual property, protected by patents, which may be required to implement this Recommendation. However, implementors are cautioned that this may not represent the latest information and are therefore strongly urged

15、to consult the TSB patent database. o mu 2001 All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing fiom the ITU. 11 Recommendation 4.2762 (12/1999) CON

16、TENTS 1 3 4 5 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9 5.10 5.11 5.12 5.13 5.14 5.15 5.16 5.17 5.18 5.19 5.20 5.21 5.22 5.23 5.24 5.25 5.26 5.27 5.28 5.29 Scope . References . Relationships to other Recommendations . Abbreviations Signalling messages Address Complete Message (ACM) . Answer Message (ANM)

17、Application Transport Message (APM) Blocking message (BLO) Blocking Acknowledgement message (BLA) . Call Progress message (CPG) . Call Transfer Message (CTM) Confusion message (CFN) Connection Available message (COA) . Consistency Check End message (CCE) Consistency Check End Acknowledge message (CC

18、EA) Consistency Check Request message (CSR) Consistency Check Request Acknowledge message (CSRA) Facility message (FAC) Forward Transfer message (FOT) . Identification Request message (IDR) Identification Response message (IRS) Initial Address Message (IAM) . IAM Acknowledgement message (IAA) . IAM

19、Reject message (IAR) . Loop Prevention message (LOP) Modifj Acknowledge message (MOA) Modifj Reject message (MOR) Modifj Request message (MOD) . Network Resource Management message (NRiLI) Pre-release Information message (PRI) Release message (REL) Release Complete message (RLC) Reset Message (RSM)

20、. Recommendation 4.2762 (12/1999) Page 1 1 1 1 3 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 6 6 6 6 6 6 6 6 6 6 6 6 7 7 . 111 5.30 5.31 5.32 5.33 5.34 5.35 5.36 5.37 5.38 5.39 6 6.1 Reset Acknowledgement Message (RAM) . Resume message (RES) Segmentation Message (SGM) (national use) Subsequent Address Message (SA

21、M) . Suspend message (SUS) . Unblocking message (UBL) Unblocking Acknowledgement message (UBA) . User Part Available message (UPA) . User Part Test message (UPT) User-to-User information message (USR) Signalling information Parameters . 6.1.1 AAL parameters . 6.1.2 AAL Prime parameters 6.1.3 Access

22、delivery information 6.1.4 Additional calling party number 6.1.5 Additional ATM cell rate 6.1.6 Additional connected number 6.1.7 AESA for additional calling party . 6.1.8 AESA for additional connected party 6.1.9 AESA for called party 6.1.10 AESA for calling party 6.1.1 1 AESA for connected party .

23、 6.1 . 12 Alternative ATM cell rate 6.1.13 Application generated identifier 6.1.14 Application transport Parameter (APP) . 6.1.15 ATC setup parameters . 6.1.16 ATM cell rate . 6.1.17 Automatic congestion level . 6.1.18 Automatic re-routing . Backward narrow-band interworking indicator . 6.1.19 Backw

24、ard GVNS . 6.1.20 6.1.2 1 Broadband bearer capability 6.1.22 Broadband high layer information . 6.1.23 Broadband low layer information 6.1.24 Call diversion information . 6.1.25 Call diversion may occur . 6.1.26 Call diversion treatment indicators Page 7 7 7 7 7 7 7 7 7 7 8 8 8 8 8 8 8 8 8 8 8 8 9 9

25、 9 9 9 9 9 9 9 9 9 10 10 10 10 10 iv Recommendation 4.2762 (12/1999) 6.1.27 Call history information . 6.1.28 Call offering treatment indicators 6.1.29 Call transfer number 6.1.30 Call transfer reference 6.1.3 1 Called IN number 6.1.32 Called party number 6.1.33 Called party sub-address 6.1.34 Calle

26、d partys indicators . Calling party number . 6.1.36 Calling party sub-address . 6.1.37 Calling partys category 6.1.3 8 Cause indicator 6.1.39 CCSS . 6.1.40 6.1 . 3 5 Cell delay variation tolerance (CDVT) 6.1.4 1 Charge indicator . 6.1.42 Charged party identification . 6.1.43 Closed user group inform

27、ation 6.1.44 Collect call request 6.1.45 Conference treatment indicators 6.1.46 Connected line identity request . 6.1.47 Connected number . 6.1.48 Connected sub-address 6.1.49 Connection element identifier . 6.1 SO Connection identifier . 6.1.5 1 Consistency check result information 6.1 . 52 Correla

28、tion ID 6.1.53 Destination connection link identifier . 6.1.54 Destination signalling identifier 6.1.55 Display information . 6.1.56 Echo control information . 6.1.57 End-to-end transit delay network generated indicator . 6.1.58 Extended quality of service . 6.1.59 Exclusive connection element ident

29、ifier 6.1.60 Forward GVNS 6.1.61 Forward narrow-band interworking indicator 6.1.62 Hop counter . 6.1.63 In-band information indicator 6.1.64 Leaf party type . 6.1.65 Link layer core parameters . 6.1.66 Link layer protocol parameters Recommendation 4.2762 (12/1999) Page 10 10 10 10 10 10 10 10 11 11

30、11 11 11 11 11 11 11 11 11 11 11 12 12 12 12 12 12 12 12 12 12 12 12 13 13 13 13 13 13 13 V 6.1.67 6.1.68 6.1.69 6.1.70 6.1.71 6.1.72 6.1.73 6.1.74 6.1.75 6.1.76 6.1.77 6.1.78 6.1.79 6.1.80 6.1.81 6.1.82 6.1.83 6.1.84 6.1.85 6.1.86 6.1.87 6.1.88 6.1.89 6.1.90 6.1.91 6.1.92 6.1.93 6.1.94 6.1.95 6.1.9

31、6 6.1.97 6.1.98 6.1.99 Location number Loop prevention indicators MCID request indicator . MCID response indicator . Minimum ATM cell rate Maximum end-to-end transit delay MLPP Precedence MLPP user information . Narrow-band bearer capability Narrow-band hi and - start measurement of call duration fo

32、r international accounting purposes (see Recommendation E.260). 5.3 Application Transport Message (APM) A message sent in either direction to convey application information using the Application Transport mechanism. 5.4 Blocking message (BLO) A message sent only for maintenance purposes to the excha

33、nge at the other end of a virtual path connection, to cause an engaged condition of that resource for subsequent calls outgoing from that exchange. An exchange receiving the blocking message must be capable of accepting incoming calls on the concerned resource unless it has also sent a blocking mess

34、age for that resource. 5.5 Blocking Acknowledgement message (BLA) A message sent in response to a blocking message indicating that the resource has been blocked. 5.6 Call Progress message (CPG) A message, sent in either direction during the setup or active phase of the call indicating that an event,

35、 which is of significance to the originating or terminating access, has occurred. 4 Recommendation 4.2762 (12/1999) 5.7 Call Transfer Message (CTM) A message sent in either direction to convey numbering and status information for the Explicit Call Transfer (ECT) supplementary service. 5.8 Confusion

36、message (CFN) A message sent in response to any message (other that a confusion message) if the exchange does not recognize the message or detects a part of the message as being unrecognized and the instruction indicator requested notification. 5.9 Connection Available message (COA) A message sent i

37、n the forward direction to indicate that the procedure is completed (e.g. connection setup or modify procedure). NOTE - The former name of the message was Modifj Confirm. Existing procedures are not influenced by this editorial change. However, this message may be used in additional procedures. 5.10

38、 A message sent to the exchange at the other end of a virtual path connection indicating the end of the consistency check sequence and to deactivate the consistency check ATM cell monitoring devices. Consistency Check End message (CCE) 5.11 Consistency Check End Acknowledge message (CCEA) A message

39、sent in response to a continuity check end message indicating the result of the consistency check and that the consistency check monitoring device has been activated. 5.12 A message sent for maintenance purposes to the exchange at the other end of a virtual path connection to verify the consistent a

40、nd correct allocation of a virtual path connection identifier to a virtual path. The test will cause the remote (receiving) exchange to activate an ATM cell monitoring device for the indicated resource. Consistency Check Request message (CSR) 5.13 A message sent in response to a consistency check re

41、quest message indicating that the ATM cell monitoring device has been activated for the indicated resource. Consistency Check Request Acknowledge message (CSRA) 5.14 Facility message (FAC) A message sent in either direction at any phase of the call to request an action at another exchange. The messa

42、ge is also used to carry the results, error or rejection of a previously requested action. 5.15 Forward Transfer message (FOT) A message sent in the forward direction on semi-automatic calls when the outgoing international exchange operator wants the help of an operator at the incoming international

43、 exchange. The message will normally serve to bring an assistance operator (see Recommendation Q.101) into the circuit if the call is automatically set up at the exchange. When the call is completed via an operator (incoming or delay operator) at the incoming international exchange, the message shou

44、ld preferably cause this operator to be recalled. Recommendation 4.2762 (12/1999) 5 5.16 Identification Request message (IDR) A message sent in the backward direction to request action regarding the malicious call identification supplementary service. 5.17 Identification Response message (IRS) A mes

45、sage sent in response to the identification request message. 5.18 Initial Address Message (IAM) A message sent in the forward direction to initiate seizure of an outgoing virtual channel and to transmit number and other information relating to the routing and handling of a call. 5.19 IAM Acknowledge

46、ment message (MA) A message sent in the backward direction in response to an IAM message. The IAA indicates that the IAM has been accepted and the requested bandwidth on the incoming leg (both directions) is available. 5.20 IAM Reject message (IAR) A message sent in the backward direction in respons

47、e to an IAM message indicating call refusal due to resource unavailability. 5.21 Loop Prevention message (LOP) A message sent to convey information required by the ECT supplementary service. 5.22 Modify Acknowledge message (MOA) A message sent in the backward direction to indicate that the modifj re

48、quest has been accepted. 5.23 Modify Reject message (MOR) A message sent in the backward direction to indicate that the modifj request has been rejected. 5.24 Modify Request message (MOD) A message sent in the forward direction to modifj the connection characteristics associated with a call. 5.25 Ne

49、twork Resource Management message A message sent in order to modifj network resources associated with a certain call. The message is sent along an established path in any direction in any phase of the call. 5.26 Pre-release Information message (PRI) A message to be used with the Release message for the transport of information where sending of that information in the Release message itself would cause compatibility problems with ISUP92 and subsequent versions of the ISUP protocol. 5.27 Release message EL) A message sent in either direction to indicate that the callkonnection i