1、INTERNATIONAL TELECOMMUNICATION UNION ITU-T TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU Q.763 Amendment I (03/2001) SERIES Q: SWITCHING AND SIGNALLING Specifications of Signalling System No. 7 - ISDN user part Signalling System No. 7 - ISDN user part formats and codes Amendment 1 : Coding of the
2、 application transport parameter ITU-T Recommendation Q.763 - Amendment 1 (Formerly CCITT Recommendation) ITU-T Q-SERIES RECOMMENDATIONS SWITCHING AND SIGNALLING SIGNALLING IN THE INTERNATIONAL MANUAL SERVICE FUNCTIONS AND INFORMATION FLOWS FOR SERVICES IN THE ISDN SPECIFICATIONS OF SIGNALLING SYSTE
3、MS No. 4 AND No. 5 SPECIFICATIONS OF SIGNALLING SYSTEM No. 6 SPECIFICATIONS OF SIGNALLING SYSTEM R1 SPECIFICATIONS OF SIGNALLING SYSTEM R2 DIGITAL, EXCHANGES INTERWORKING OF SIGNALLING SYSTEMS SPECIFICATIONS OF SIGNALLING SYSTEM No. 7 INTERNATIONAL AUTOMATIC AND SEM-AUTOMATIC WORKING CLAUSES APPLICA
4、BLE TO ITU-T STANDARD SYSTEMS General Message transfer part (MTP) Signalling connection control part (SCCP) Telephone user part (Tup) ISDN supplementary services Data user part Signalling System No. 7 management ISDN user pa Transaction capabilities application part Test specification 43 INTERFACE D
5、IGITAL SUBSCRIBER SIGNALLING SYSTEM No. 1 PUBLIC LAND MOBILE NETWORK INTERWORKING WITH SATELLITE MOBILE SYSTEMS INTELLIGENT NETWORK Q.l-Q.3 4.4-4.59 4.60-4.99 Q.lOO-Q.119 Q. 1204.249 Q.25O-Q.309 4.310-4.399 Q.40O-Q.499 Q.50O-Q.599 Q.60O-Q.699 4.700-4.799 4.700 Q.701-Q.709 4.71 14.719 Q.72O-Q.729 4.7
6、30-4.739 4.7404.749 07504.759 4.780-4.799 Q.80O-Q.849 Q.85O-Q.999 Q. 10004. 1099 Q. 1 lOO-Q.1199 Q. 12004.1699 SIGNALLING REQUIREMENTS AND PROTOCOLS FOR IMT-2000 Q. 1700-Q.1799 SPECIFICATIONS OF SIGNALLING RELATED TO BEARER INDEPENDENT CALL CONTROL (BICC) Q. 19004.1999 BROADBAND ISDN Q.200O-Q.2999 F
7、orJirrther details, please refer to the list of ITU-T Recommendations. ITU-T Recommendation 4.763 Signalling System No. 7 - ISDN user part formats and codes AMENDMENT 1 Coding of the application transport parameter Summary This Amendment supersedes Addendum 1 (06/2000) to ITU-T 4.763. It contains up
8、dated information with regard to the application transport parameter (APP). Source Amendment 1 to ITU-T Recommendation 4.763 was prepared by ITU-T Study Group 11 (2001-2004) and approved under the WTSA Resolution 1 procedure on 1 March 2001. ITU-T Q.763/Amd.l (03/2001) i FOREWORD The International T
9、elecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications. The ITU Telecommunication Standardization Sector (IT-T) is a permanent organ of ITU. ITU-T is responsible for studying technical, operating and tariff questions and issuing Recommendations on th
10、em with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Assembly (WTSA), which meets every four years, establishes the topics for study by the IT-T study groups which, in turn, produce Recommendations on these topics. The approval of -T Re
11、commendations is covered by the procedure laid down in WTSA Resolution 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 “Administration“ is used for
12、conciseness to indicate both a telecommunication administration and a recognized operating agency. INTELLECTUAL PROPERTY RIGHTS draws attention to the possibility that the practice or implementation of this Recommendation may involve the use of a claimed Intellectual Property Right. ITU takes no pos
13、ition 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, ITU had not received notice of intellectual property, prot
14、ected 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 2001 All rights reserved. No part of this publication may be rep
15、roduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from IT. 11 ITU-T Q.763/Amd.l (0312001) ITU-T Recommendation 4.763 1 - la 2 3 I I Signalling System No. 7 - ISDN user part formats and codes ext. Application
16、 context identifier - lsb ext. msb ext. spare I SNI I RCI ext. SI I APM seementation indicator AMENDMENT 1 3a 4e 4n Coding of the application transport parameter Introduction This amendment contains the full text of ITU-T 4.763 Addendum 1 (06/2000) with two additional modifications incorporated, all
17、owing the amendment to supersede Addendum 1. The revision marks that were shown in Addendum 1 have been preserved. The two modifications are shown in bold, underlined italics. 1) Tables 21/Q.763,22lQ.763,23/Q.763,27lQ.763,32/Q.763,51/Q.763 and 5214.763 Mod& the Note in Tables 2UQ.763 (ACM), 22/Q.763
18、 (ANM), 23/Q.763 (CPG), 27/Q.763 (CON), 32/Q. 763 (IAM), 5UQ. 763 (APM) and 52/Q. 763 (PRI): %Multiple application transport parameters (APP) can be sent in the same message, provided that they belong to different segmentation sequences. 2) Clause 3.82 Modih the coding of the APP as follows: NOTE -
19、) ext. I Segmentation local reference APM-user information 3.82 Application transport parameter (APP) The format of the application transport parameter field is shown in Figure 77. ITU-T Q.763/Amd.l(03/2001) 1 a) b) I I I The following codes are used in the application transport parameter field: Ext
20、ension indicator (ext.): as in 3.25 a) Application context identiJier (ACI) (Octet 1 and Octet 1 a) bl) If the extension bit is set to 1 in Octet 1, Octet la is absent. The value contained in Octet 1 bits 1-7 shall be interpreted as follows: 0000000 0000001 PSS1 ASE (VI“ 0000010 spare 000001 1 Charg
21、ing ASE The precedinp values are used by APM98-user applications. 0000100 GAT Unidentified Context and Error Handling (UCEH) ASE 0000101 0000110 BAT ASE Enhanced Unidentified Context and Error Handling ASE (EUCEH ASE) Spare for international use reserved for non-standardized APM198-user applications
22、 1 1 o o o o 1 0 1 to 0111111 1000000 to 1111111 b2) If the extension bit is set to O in Octet 1, Octet la is present. In that case, the AC1 is a 14-bit field: Octet 1 a Octet 1 Bits 1-7 Bits 1-7 1 1 1 1 1 1 1 0000001 0000000 0000001 0000010 0000000 1111111 11 11 11 1 reserved for non-standardized A
23、PM12000-user applications Spare for national use 1 1 - to iQ NOTE 1 - The compatibility mechanism as defined in ITU-T 4.764 is not applicable to this field. c) Application transport instruction indicators bit 1 Release call indicator CI) O do not release call 1 release call bit 2 Send notification i
24、ndicator (SNI) O do not send notification 1 Send notification 2 ITU-T Q.763/Amd.l(03/2001) d) APM segmentation indicator 4, 4a fh - 5 000000 final segment 000001 to 001001 indicates the number of following segments 001010 1 Originating Address leneth rimnating Address Destination Address leneth spar
25、e 111111 NOTE 2 - The compatibility mechanism as defined in ITU-T 4.764 is not applicable to this field. Sequence indicator (So O 1 new sequence Segmentation local reference (SLR) APM-user information field The format and coding of this field depends on the Application Context Identifier. 81) If the
26、 AC1 corresponds to an APM98-user application. then the format of the APM-user subsequent segment to first segment information field is shown in Fime 77.1. - 4 Encamdated artlication information 01 I Fipure 77.VQ.763 - Content of the APM-user information field for APM98-user applications The content
27、 of this field is described in 2.4). APM-user information field is shown in Figure 77.2: g2) If the AC1 corresponds to an APM2000-user application, then the format of the Destination Address I Encamdated Amikation Information I Figure 77.2/0.763 - Content of the APM-user information field for APM200
28、0-user applications ITU-T Q.763/Amd.l(03/2001) 3 The coding of the APM-user information field is as follows: g2.1) Originating address length g2.2) Destination address length g2.3) Originating address/Destination address The values are O. 3-20. The values are O, 3-20. The originating address (destin
29、ation address) field is not present if the originating address lenpth - (destination address length) is set to zero. The format of the Originating - and Destination address fields is shown in Fime 77.3. - - - 3 1- Nature of address indicator 2INN Numbering lan Ind. - Ind. 2nd address simai 1st addre
30、ss simai E The following codes are used in the Originating address and the Destination address fields: 1) 2) Nature of address indicator Oddhen indicator (O/E): as in 3.9 a) Filler (if necessary) nth address simai l o o o o o o o 0000001 0000010 000001 1 0000100 0000101 0000110 00001 11 0001000 0001
31、001 1101111 11 10000 iQ 11 11110 1 1 svare reserved for subscriber number unknown (national use) national (significant) number international number network-specific number (national use) network routing number in national (significant) number format national use) network routing number in network-sp
32、ecific number format national use) reserved for network routing number concatenated with directory number svare reserved for national use 1111111 svare 4 ITU-T Q.763/Amd.l (03/2001) 3) Internal network number indicator 0” ind. ) O 1 routing to internal network number allowed routing to internal netw
33、ork number not allowed 4) Numbering dan indicator O00 spare O O 1 O10 spare O 1 1 1 O O 1 O 1 1 1 O 11 1 spare 5) Address simal O000 digit0 O001 digit1 O010 digit2 O011 digit3 O100 digit4 O1 O1 digit5 O110 digit6 O 1 11 digit7 1000 digit8 1001 digit9 1010 spare 1011 code11 11 O0 code 12 1101 spare 1
34、1 10 spare 11 11 spare The most significant address signal - is sent first. Subsequent address simals are sent in successive 4-bit fields. Filler: as in 3.9 f) 62.4) Encapsulated application information: ISDN (Telephony) numbering plan (ITU-T E. 164) reserved for data numbering plan (ITU-T X. 12 1)
35、reserved for telex numbering plan (ITU-T F.69) reserved for national use reserved for national use 6) Contains the application-specific information. The format and coding of this field is dependent upon the APM-user application and defined in the appropriate Recommendation. For APM-user applications
36、 that wish to provide a service of transparent transport of information (e.g. the case where existing information elements are defined for the transport of certain information) as well as having the ability of passing additional network-related information within the public network, then the followi
37、ng guideline is provided: ITU-T Q.763/Arnd.l(03/2001) 5 It is suggested that this field be structured such that the first octet (i.e. first octet of rst segment for long APM-user information) is a pointer to information to be transported transparently. The pointer value (in binary) gives the number
38、of octets between the pointer itself (included) and the first octet (not included) of transparent data. The pointer value “all zeros“ is used to indicate that no transparent data is present. The range of octets between the pointer octet and the fust octet of transparent data (to which the pointer oc
39、tet points) contains the network-related information to be passed between the applications residing within the public network. The format and coding of both the transparent information and the network-related information is application-specific and defined in the appropriate Recommendation. 6 ITU-T Q.763/Amd.l(03/2001)
