1、INTERNATIONAL TELECOMMUNICATION UNION ITU=T TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU Q.2981 (1 2/1999) SERIES Q: SWITCHING AND SIGNALLING Broadband ISDN - B-ISDN application protocols for access sign al I i ng Broadband integrated services digital network (B-ISDN) and broadband private integr
2、ated services network (B-PISN) - Call control protocol ITU-T Recommendation Q.2981 (Formerly CCITT Recommendation) IPN= 4862591 0689985 840 SWITCHING AND SIGNALLING SIGNALLING IN THE INTERNATIONAL MANUAL SERVICE I NTERNATIONAL AUTOMATIC AND SEMI -AUTOMATIC W ORKI NG FUNCTIONS AND INFORMATION FLOWS F
3、OR SERVICES IN THE ISDN SPECIFICATIONS OF SIGNALLING SYSTEMS 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 DIGITAL
4、SUBSCRIBER SIGNALLING 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) Signallin
5、g network protocols Common aspects of B-ISDN application protocols for access signalling and network signalling and interworking B-ISDN application protocols for the network signalling Q.l-Q.3 Q.4-Q.59 Q.60-Q.99 Q.100-Q.119 Q. 1204.249 Q.250-Q.309 Q.31O-Q.399 Q.400-Q.499 Q.50O-Q.599 Q.600-Q.699 Q.70
6、O-Q.849 Q.850-Q. 999 Q. 1 O0 0-Q. 1 O99 Q.1100-Q.1199 Q. 1200-Q.1699 Q. 1700-Q.1799 Q.200 04.2999 Q.2000-Q.2099 Q.2100-Q.2199 Q.220W.2299 Q.260O-Q.2699 Q.2700-Q.2899 Forfurther details, please r4.r to ITU-T List of Recommendations. IPN= 4862591 0689986 787 BROADBAND INTEGRATED SERVICES DIGITAL NETWO
7、RK (B-ISDN) AND BROADBAND PRIVATE INTEGRATED SERVICES NETWORK (B-PISN) - CALL CONTROL PROTOCOL Summary This Recommendation specifies a signalling protocol for the purpose of call control at the QB, Sg, TB, and co-incident SB/TB reference points within, between, and at the access to Broadband Private
8、 Integrated Services Networks and within, between, and at the access to Broadband Integrated Services Digital Networks. The protocol operates between two adjacent call control entities. The protocol is applicable to a terminal or network node in a separated call and bearer (connection) control envir
9、onment for the support of calls having none, a single bearer or multiple bearers. The protocol is applicable to a two-party call. The protocol also provides forward compatibility to the extent that an implementation can also operate within a multi-party call with other implementations that use addit
10、ional capabilities, provided the implementation is deployed where it does not need to be aware of more than two parties. Source -T Recommendation Q.2981 was prepared by ITU-T Study Group 11 (1997-2000) and was approved under the WTSC Resolution 1 procedure on 3 December 1999. Keywords Bearer control
11、, call control, separation. IPN= 4862591 0689987 61 3 Recommendation 4.2981 (12/1999) i FOREWORD ITU (International Telecommunication Union) is the United Nations Specialized Agency in the field of telecommunications. The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of t
12、he ITU. The ITU-T is responsible for studying technical, 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, establishes t
13、he topics for study by the ITU-T Study Groups which, in their turn, 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 1. In some areas of information technology which fall within ITU-Ts purvie
14、w, the necessary standards are prepared on a collaborative basis 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. “ELLECTUAL PROPERTY RIGHTS The IT draws atten
15、tion to the possibility that the practice or implementation 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 ITU members or othe
16、rs outside of the Recommendation development process. As of the date of approval of this Recommendation, the ITU 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 repre
17、sent the latest idormation and are therefore strongly urged to consult the TSB patent database. o KU 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
18、writing from the ITU. Recommendation 4.2981 (12/1999) 11 IPN= 4862591 0689988 55T 1 2 3 4 5 5.1 5.2 5.3 5.4 5.5 6 6.1 6.2 7 7.1 7.2 7.3 Scope . References . Definitions Abbreviations Basic model . Separation of call control and bearer control Point-to-point and multi-party call control . Relationshi
19、p to bearer control architecture . Operational requirements Provision and withdrawal . Transport mechanism Primitive definitions and state definitions Service primitives . 7.1.1 Service primitive architecture 7.1.2 ESTABLISH-CALL 7.1.3 COMPLETE-CALL . 7.1.4 STATUS-CALL 7.1.5 RELEASE-CALL 7.1.6 PROCE
20、ED-CALL . 7.1.7 ERROR . Parameters . Call control architecture Screening function . 7.2.1 Call segment ID . 7.2.2 Call description 7.2.3 Call changed parameter . 7.2.4 Await complete indicator . 7.2.5 Bearer establishment address . 7.2.6 Release cause . 7.2.7 Result . 7.2.8 Diagnostics Call control
21、states 7.3.1 Call Idle . 7.3.2 Call Initiated 7.3.3 Outgoing Call Proceeding IPN= 4862591 0689989 496 Recommendation Q.2981 (12/1999) Page 1 1 2 3 3 3 3 4 5 5 7 7 7 7 7 7 8 8 9 9 10 10 11 11 11 11 11 11 11 12 12 12 12 12 12 iii 1 Call Active Call Active Call Active See Figure 1.3. Call Active - - RE
22、L-CALL - - - - - - - - re(L callRelease inv. F callRelease inv. F rl Call Idle callRelease inv. REL-CALLind - Figure I3/Q.2981- Example information flow for call release Request Call Rel.Req. Call Rel.Req. Indication APPENDIX II callRelease res. callRelease res. _- REL-CALL - - conf - 4 Imported ASN
23、.l definitions REL-CALL resp callRelease res. 4 Table II. 1 is an extract from module Addressing-Data-Elements in 4.932. Table II.l/Q.2981- Imported ASN.l Defmitions Addressing-Data-Elements Addressing-Data-Elements itu-t recommendation q 932 BEGIN addressing-data-elements(7) DEFINITIONS := EXPORTS
24、PresentedAddressScreened, PartyNumber, Partysubaddress, ScreeningIndicator; PresentedAddressScreened := CHOICE presentationAllowedAddress O IMPLICIT AddressScreened, PresentationRestricted i IMPLICIT NULL, numberNotAvailableDueToInterworking 2l IMPLICIT NULL, presentationRestrictedAddress 31 IMPLICI
25、T AddressScreened AddressScreened := SEQUENCE partyNumber PartyNumber, screeningIndicator ScreeningIndicator, partysubaddress Partysubaddress OPTIONAL PartyNumber := CHOICE unknownPartyNumber O IMPLICIT NumberDigits , - the numbering plan is the default numbering plan of - the network. Recommendatio
26、n 4.2981 (1211999) 59 IPN= 4862591 0690051 TO2 publicPartyNumber l IMPLICIT PublicPartyNumber, - the numbering plan is according to Rec. E.163 and - E.164 nsapEncodedNumber 21 IMPLICIT NsapEncodedNumber, - ATM endsystem address encoded as an NSAP address dat aPartyNumber 31 IMPLICIT NumberDigits, -
27、not used, value reserved telexPartyNumber 41 IMPLICIT NumberDigits, - not used, value reserved privatePartyNumber 51 IMPLICIT PrivatePartyNumber, nationalStandardPartyNumber 81 IMPLICIT NumberDigits - not used, values reserved PublicPartyNumber := SEQUENCE publicType0fNumber PublicTypeOfNumber, publ
28、icNumberDigits NumberDigits PrivatePartyNumber := SEQUENCE privateType0fNumber PrivateTypeOfNumber, PrivateNumberDigits NumberDigits NumberDigits := NumericString(S1ZE (120) PublicTypeOfNumber := ENUMERATED unknown (O ) , - if used number digits carry prefix indicating type of - number according to
29、national recommendations. internationalNumber(l), nationalNumber(2), networkSpecificNumber(3), - not used, value reserved subscriberNumber(4), abbreviateNumber(6) - valid only for called party number at the outgoing access, - network substitutes appropriate number. PrivateTypeOfNumber := ENUMERATED
30、unknown(O), level2RegionalNumber(l), levellRegionalNumber(2), pISNSpecificNumber(3), localNumber(4), abbreviatedNumber(6) NsapEncodedNumber := OCTET STRING(S1ZE (120) Partysubaddress := CHOICE userSpecifiedSubaddress UserSpecifiedSubaddress, - not recommended nSAPSubaddress NSAPSubaddress - accordin
31、g to Rec. X.213. UserSpecifiedSubaddress := SEQUENCE subaddressInformation SubaddressInformation, oddCountIndicator BOOLEAN OPTIONAL - used when the coding of subaddress is BCD NSAPSubaddress := OCTET STRING(S1ZE (120) - specified according to X.213. some networks may limit - the subaddress value to
32、 some other length, e.g. 4 octets. SubaddressInformation := OCTET STRING(S1ZE (120) - coded according to user requirements. some networks - may limit the subaddress value to some other length, _- e.g. 4 octets. ScreeningIndicator := ENUMERATED userProvideNotScreened(O), - number was provided by a re
33、mote user terminal 60 Recommendation 4.2981 (12/1999) IPN= 4862591 0690052 949 - is not the local public or the local private network. userProvidedVerifieddPassed(1) , - number was provided by a remote user terminal - equipment (or by a remote private network), and has - been screened by the local p
34、ublic or the local private - network. userProvidedVerifieddFailed(2), - not used, value reserved. networkprovided (3 1 , Table9 - number was provided by local public or local private - network. END - of Addressing-Data-Elements APPENDIX III Object identifiers defined in this Recommendation This appe
35、ndix lists the object identifier values assigned in this Recommendation and data types, values and macros that are exported from any modules identified by those values. All the object identifiers in this Recommendation are defined using the ITU-T object identifier tree. This means that each object i
36、dentifier value is assigned in the tree: ccObjectIdTree := itu-t recommendation q 2981 Table III. 1 lists the module number values and the data types, values and Macros which are exported from these modules. Table III.l/Q.2981- ASN.l Module Object identifiers used in this Recommendation r CcObjectId
37、Tree cc-operations-definitions (2) I ccObiectIdTree cc-operations-errors (3) r ccObjectdTree call-control-obj ect-super-class (4) ccObjectIdTree cc-object-classes (6) IPN= 4862591 0690053 885 Reference Table 7 Table 7 Table 7 Table 8 Table 9 Notes I Exports: CcOperations, callSegmentId I Exports: CA
38、LLCONTROLOBJECTCLASS Exports: call, localPartyEP, remotePartyEP, directCallAssociation, remoteCallAssociation, servicecomponent, BearerId I Recommendation 4.2981 (1211999) 61 IPN= 4862591 0690054 71 1 Series A Series B Series C Series D Series E Series F Series G Series H Series I Series J Series K
39、Series L Series M Series N Series O Series P Series Q Series R Series S Series T Series U Series V Series X Series Y Series Z SERIES OF ITU-T RECOMMENDATIONS rganhtion of the work of ITU-T Means of expression: definitions, symbols, classification General telecommunication statistics General tariff p
40、rinciples Overall network operation, telephone service, service operation and human factors Non-telephone telecommunication services Transmission systems and media, digital systems and networks Audiovisual and multimedia systems Integrated services digital network Transmission of television, sound p
41、rogramme and other multimedia signals Protection against interference Construction, installation and protection of cables and other elements of outside plant TMN and network maintenance: international transmission systems, telephone circuits, telegraphy, facsimile and leased circuits Maintenance: in
42、ternational sound programme and television transmission circuits Specifications of measuring equipment Telephone transmission quality, telephone installations, local line networks Switching and signalling Telegraph transmission Telegraph services terminal equipment Terminals for telematic services T
43、elegraph switching Data communication over the telephone network Data networks and open system communications Global information infkastructure and Internet protocol aspects Languages and general software aspects for telecommunication systems Printed in Switzerland Geneva, 2001 IPN= 4862591 0690056
44、594 INTERNATIONAL TELECOMMUNICATION UNION ITU-T TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU Q.2981 (1 2/1999) SERIES Q: SWITCHING AND SIGNALLING Broadband ISDN - B-ISDN application protocols for access signalling Broadband integrated services digital network (B-ISDN) and broadband private integr
45、ated services network (B-PEN) - Call control protocol ITU-T Recommendation Q.2981 (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
46、FOR SERVICES IN THE 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
47、 SUBSCRIBER SIGNALLING 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) Signalli
48、ng network protocols Common aspects of B-ISDN application protocols for access signalling and network signalling and interworking B-ISDN application protocols for the network signalling 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
49、.700-Q.849 Q.850-Q.999 Q. 1000-Q. 1 O99 Q.1100-Q.1199 Q. 1200-Q. 1699 Q. 1700-Q. 1799 Q.2000-Q.2999 Q.2000-Q.2099 Q.21 00-Q.2199 Q.2200-Q.2299 Q.2600-Q.2699 Q.2700-Q.2899 - - B-ISDN application protocols for access signalling Q.290-Q.2999 For further details, please rer to ITD-T List of Recommendations. ITU-T RECOMMENDATION 4.2981 BROADBAND INTEGRATED SERVICES DIGITAL NETWORK (3-ISDN) AND BROADBAND PRIVATE INTEGRATED SERVICES NETWORK (3-PISN) - CALL CON
