1、INTERNATIONAL TELECOMMUNICATION UNION ITU=T TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU 4.784.1 (07/96) SERIES Q: SWITCHING AND SIGNALLING Specifications of Signalling System No. 7 - Test specification - ISUP basic call test specification: Validation and compatibility for ISUP92 and Q.767 protoc
2、ols ITU-T Recommendation Q.784. I (Previously CCITT Recommendation) ITU-T Q-SERIES RECOMMENDATIONS SWITCHING AND SIGNALLING YGNALLING IN THE INTERNATIONAL MANUAL SERVICE NTERNATIONAL AUTOMATIC AND SEMI-AUTOMATIC WORKING UNCTIONS AND INFORMATION FLOWS FOR SERVICES IN THE ISDN ;PECIFICATION OF SIGNALL
3、ING SYSTEMS NO. 4 AND No. 5 ;PECIFICATIONS OF SIGNALLING SYSTEM No. 6 ;PECIFICATIONS OF SIGNALLING SYSTEM R1 SPECIFICATIONS OF SIGNALLING SYSTEM R2 IIGITAL EXCHANGES NTERWORKING OF SIGNALLING SYSTEMS SPECIFICATIONS OF SIGNALLING SYSTEM No. 7 :LAUSES APPLICABLE TO ITU-T STANDARD SYSTEMS General Messa
4、ge transfer part Simplified message transfer part Signalling connection control part Telephone user part ISDN supplementary services Data user part Signalling System No. 7 management ISDN user part Transaction capabilities application part Test specification Q3 interface DIGITAL SUBSCRIBER SIGNALLIN
5、G SYSTEM No. 1 PUBLIC LAND MOBILE NETWORK INTERWORKING WITH SATELLITE MOBILE SYSTEMS INTELLIGENT NETWORK BROADBAND ISDN Q.1-Q.3 Q.4-Q. 59 (2.60-(2.99 Q. 1 004.1 1 9 Q. 1204.249 Q.250-Q.309 Q.310-Q.399 Q.400-(2.499 Q.500-Q.599 Q.600-Q.699 Q.700-Q.849 Q.700 (2.701-Q.709 Q.710 Q.711-Q.719 Q.720-Q.729 Q
6、. 730-Q. 739 Q.740-(2.749 Q.750-(2.759 (2.760-(2.769 (2.770-Q.779 4.780-4.799 Q.800-Q.849 Q.850-Q.999 Q. 1000-Q.l O99 Q. 1 1 00-Q. 1 1 99 Q. 1200-Q.1999 Q.2000-(2.2999 For further details, please refer to ITU-T List of Recommendations. STDmITU-T RECMN d-789*1-ENGL 177b YBb259L Ob305b0 O20 W ITU-T RE
7、COMMENDATION Q.784.1 ISUP BASIC CALL TEST SPECIFICATION: VALIDATION AND COMPATIBILITY FOR ISUP92 AND Q.767 PROTOCOLS Summary This Recommendation contains a detailed set of “Validation“ and “Compatibility“ tests for Signalling System No. 7 (ISUP) implementations according to Recommendations Q.76 1 -
8、4.764 (ISUP92) and Q.767. For the test scripts an informal description method is used. Source ITU-T Recommendation Q.784.1 was revised by ITU-T Study Group 11 (1993-1996) and was approved under the WTSC Resolution No. 1 procedure on the 9th of July 1996. FOREWORD ITU (International Telecommunication
9、 Union) is the United Nations Specialized Agency in the field of telecommunications. The IT Telecommunication Standardization Sector (ITU-T) is a permanent organ of the IT. The IT-T is responsible for studying technical, operating and tariff questions and issuing Recommendations on them with a view
10、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 turn, produce Recommendations on these topics. The approval of Recommendat
11、ions 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 IT-Ts purview, the necessary standards are prepared on a collaborative basis with IS0 and IEC. NOTE In this Recommendation, the expression “Admin
12、istration” 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 implementation of this Recommendation may involve the use of a claimed Intellectual P
13、roperty Right. The ITU takes no position concerning the evidence, validity or applicability of claimed Intellectual Property Rights, whether asserted by ITU members or others outside of the Recommendation development process. As of the date of approval of this Recommendation, the ITU hadhad not rece
14、ived 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 to consult the TSB patent database. O ITU 1997 All rights reserv
15、ed. 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 from the IT. Recommendation Q.784.1 (07196) 11 7.1 7.2 7.3 8 9 10 - . STD-ITU-T RECMN Q-784*1-ENGL 177b = 48b259L O
16、b305b2 9T3 CONTENTS Page Scope References Abbreviations . Objective of the test specification Scope of the test list General principles of tests Test environment Signalling relation Configuration General pre-test conditions . Different ISUP implementations ISUP test list . ISUP test scripts . Recomm
17、endation Q.784.1 (07/96) 1 1 1 3 4 4 4 5 11 . 111 Recommendation 4.784.1 ISUP BASIC CALL TEST SPECIFICATION: VALIDATION AND COMPATIBILITY FOR ISUP92 AND Q.767 PROTOCOLS (revised in 1996) 1 Scope This Recommendation contains a detailed set of tests for the Signalling System No. 7 Integrated Services
18、Digital Network User Part (ISUP). These tests are intended to validate the protocol specified in ISUP92 Recommendations 4.761 -4.764 and Q.767. For ISUP92 and Recommendation 4.767, the necessary tests depend on the supported Basic Call Procedures. Tests for ISUP Blue Book implementations are covered
19、 in the 1991 version of Recommendation 4.784. This Recommendation conforms to Recommendation 4.780 which describes the basic rules of the test specification. 2 References The following ITU-T Recommendations and other references contain provisions which, through reference in this text, constitute pro
20、visions of this Recommendation. At the time of publication, the editions indicated were valid. All Recommendations and other references are subject to revision; all users of this Recommendation are therefore encouraged to investigate the possibility of applying the most recent edition of the Recomme
21、ndations and other references listed below. A list of the currently valid ITU-T Recommendations is regularly published. 11 ITU-T Recommendation 4.761 (1 993), Functional description of the ISDN User Part of Signalling System No. 7. 2 ITU-T Recommendation 4.762 (1993), General function of messages an
22、d signals of the ISDN User Part of Signalling System No. 7. 3 ITU-T Recommendation Q.763 (1993), Formats and codes of the ISDN User Part of Signalling System No. 7. 4 ITU-T Recommendation Q.764 (1 993), ISDN user part signallingprocedures. SI CCITT Recommendation Q.767 (1991), Application of the ISD
23、N user part of CCITT Signalling System No. 7 for international ISDN interconnections. 6 ITU-T Recommendation Q.780 (1 995), Signalling System No. 7 test specification - General description. 7 CCITT Recommendation Q.784 (1991), ISUP basic call test specijcation. 3 Abbreviations This Recomendation use
24、s the following abbreviations. ACM Address Complete Message ANM Answer Message ATP Access Transport BCI Backward Call Indicator Recommendation Q.784.1 (07/96) 1 BLA BLO CCR CFN CGB CGBA CGU CGUA CHI CIC Comb. CON COT CPC CPG CPT DPC FAA FAR FCI FFS FOT FRJ GenNb GenNot HLC IAM ISC ISDN ISUP MCI MTP
25、NCI OBCI OFCI OPC 2 Blocking Acknowledgement message Blocking message Continuity Check Request message Confusion message Circuit Group Blocking message Circuit Group Blocking Acknowledgement message Circuit Group Unblocking message Circuit Group Unblocking Acknowledgement message Call History Inform
26、ation Circuit Identification Code combined Connect message Continuity message Calling Partys Category Call Progress message Compatibility Test Destination Point Code Facility Accepted message Facility Request message Forward Call Indicator For Further Study Forward Transfer message Facility Reject m
27、essage Generic Number Generic Notification High Layer Compatibility Initial Address Message International Switching Centre Integrated Services Digital Network ISDN User Part Message Compatibility Information Message Transfer Part Nature of Connection Indicators Optional Backward Call Indicator Optio
28、nal Forward Call Indicator Originating Point Code Recommendation Q.784.1 (07/96) PCI PDC REL RES RLC RSC SAM SGM SP SPC sus TMR TMR TMU UBA UBL UPA UPT us1 USI USR UUI VAT 4 Parameter Compatibility Infomation Propagation Delay Counter Release message Resume message Release Complete message Reset Cir
29、cuit message Subsequent Address Message Segmentation Message Signalling Point Signalling Point Code Suspend message Transmission Medium Requirement Transmission Medium Requirement Prime Transmission Medium Used Unblocking Acknowledgement message Unblocking message User Pari Available message User Pa
30、rt Test message User Service Information User Service Information Prime User-to-User Information Message User-to-User Information Validation Test Objective of the test specification The objective of this test specification is to provide: Validation - A level of confidence that a given implementation
31、 conforms to Recommendations Q.761 - Q.764 or 4.767 of SS No. 7 ISUP. Compatibility - A level of confidence that two implementations of SS No. 7 ISUP are compatible. In order to ensure that this test specification meets this objective, the following criteria are used: 1) 2) 3) 4) The test specificat
32、ion is not intended to provide exhaustive testing of all aspects of the SS No. 7 ISUP. All tests should add value in meeting the objective stated above. For example, the testing of timers of which the only function is to alert maintenance staff on expiry may not be useful. All tests should be of a p
33、ractical nature and implementable using the available technology. The test list should concentrate on the testing of normal signalling sequences. Testing of abnormal signalling procedures will only be identified where this is regarded as particularly useful. Recommendation 4.784.1 (07/96) 3 5) When
34、upgrading existing ISUP relations, compatibility testing is required. The tests to be performed will be the subject of appropriate bilateral agreements and shall be executed before the new ISUP signalling capabilities are put into service. NOTE - For the tests special trunks shall be assigned. Norma
35、l traffic shall continue over the other trunks of the signalling relation. The testing shall have no impact on this normal traffic. After successfully completing the testing, the new ISUP signalling capabilities can be put into service without disruption of the traffic. 5 The test list is composed b
36、ased on ISUP92 Recommendations Q.761 - 4.764 and 4.767 Scope of the test list 6 General principles of tests The tests are described as “Validation“ tests or “Validation“ and “Compatibility“ tests. Each test description indicates in the field )type of test“ whether the test is a “Validation“ or a “Va
37、lidation“ and “Compatibility“ test. In addition to signalling protocol testing some call control functions are also verified, e.g. the transfer of speechinformation. 7 Test environment 7.1 Signalling relation A stable signalling relation is required between “SP A“ and “SP B“ in order to carry out ef
38、fective tests. A tested MTP signalling link should be used for compatibility tests. In addition, telephony/data circuits are required for most tests. 7.2 Configuration See 634.780. In validation testing, the signalling point under test is called SP “A“. In compatibility testing, each signalling poin
39、t may in turn consider itself to be SP “A“, i.e. tests are performed on both signalling points involved. It is indicated in some test scripts that for validation testing the tests should be repeated in the reverse direction. 7.3 General pre-test conditions For tests provided to a termination, it is
40、assumed that this temination is free and the circuit is idle. Otherwise it is pointed out in the test script. 8 Different ISUP implementations This Recommendation covers test cases for the ISUP implementations of Q.767, Q.761 - Q.764 and in case of compatibility testing as well as combinations betwe
41、en them. Since ISUP 4.767 is based on ISUP Blue Book, for tests between ISUP Blue Book and ISUP92 the combined Compatibility tests of this Recommendation are applicable. 4 Recommendation Q.784.1 (07196) - STD-ITU-T RECMN f2.784.L-ENGL L97b = LiAb257L Ob305bA 311 Q.747 VAT Tests marked with “4.767 VA
42、T“ describe Validation tests for an ISC with an ISUP implementation according to Recommendation 4.767. 4.767 CPT Tests marked with “4.767 CPT“ describe Compatibility tests for interconnections between two ISCs with ISUP 4.767 implemented. Presuppositions are the successful Validation tests for both
43、ISCs according to Recommendation 4.767 VAT. ISUP92 VAT Tests marked with “ISUP92 VAT“ describe Validation tests for an ISC with an ISUP implementation according to Recommendations 4.76 1 - 4.764. ISUP92 CPT Tests marked with “ISUP92 CPT“ describe Compatibility tests for interconnections between two
44、ISCs with ISUP 4.761 - 4.764 implemented. Presuppositions are the successful Validation tests for both ISCs according to ISUP92 VAT. Comb. CPT Tests marked with “Comb. CPT“ describe combined Compatibility tests for interconnections between one exchange with an ISUP implementation according to Recomm
45、endation 4.767 or Blue Book and another exchange with an ISUP implementation according to ISUP92 4.761 - 4.764. Presuppositions are the successful Validation tests for both exchanges according to Recommendations 4.767 or Blue Book VAT and ISUP92 VAT. Q.767 VAT X X X X X X X X X X X 9 ISUP test list
46、4.767 CPT X X X X Titlehbtitle 1 1.1 Non-allocated circuits 1.2 Reset of circuits 1.2.1 1.2.2 1.2.3 1.2.4 1.2.5 Circuit group reset received 1.2.6 Circuit group reset sent 1.2.7 Circuit supervision and signalling supervision RSC received on an idle circuit RSC sent on an idle circuit RSC received on
47、 a locally blocked circuit RSC received on a remotely blocked circuit Circuit group reset received on remotely blocked circuits 1.3 Blocking of circuits 1.3.1 Circuit group blockingunblocking 1.3.1.1 CGB and CGU received 1.3.1.2 CGB and CGU sent 1.3.2 Circuit blocking/unblocking 1.3.2.1 BLO received
48、 ISUP92 ISUP92 Comb. VAT I CPT 1 CPT 1 X X X X X X X X X X X Recommendation 4.784.1 (07/96) 5 - STD-ITU-T RECMN Q-784.L-ENGL L97b 48b257L Ob305b7 258 Titlehubtitle .3.2.2 BLO sent .3.2.3 .3.2.4 .3.2.5 Blocking from both ends; removal of blocking from one end IAM received on a remotely blocked circui
49、t Blocking with CGB, unblocking with UBL I .4 Continuity check procedure ,.4.1 CCR received: successful 1.4.2 CCR sent: successful 1.4.3 CCR received: unsuccessful 1.4.4 CCR sent: unsuccessful 1.4.5 CCR not received: unsuccessful; verify T27 timer 1.5 1.5.1 Receipt of unexpected messages 1.5.2 1.5.3 Receipt of unreasonable signalling information messages Receipt of unexpected messages during call setup Receipt of unexpected messages during a call 1.6 1.6.1 I .6.1.1 1.6.1.2 1.6.2 1.6.2.1 1.6.2.2 1.6.3 1.6.3.1
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