1、Standard ECMA-1063rd Edition - December 1993Standardizing Information and Communication SystemsPhone: +41 22 849.60.00 - Fax: +41 22 849.60.01 - URL: http:/www.ecma.ch - Internet: helpdeskecma.chPrivate TelecommunicationNetworks (PTN) - SignallingProtocol at the S Reference Point- Circuit Mode Basic
2、 ServicesStandard ECMA-1063rd Edition - December 1993Standardizing Information and Communication SystemsPhone: +41 22 849.60.00 - Fax: +41 22 849.60.01 - URL: http:/www.ecma.ch - Internet: helpdeskecma.chIW - ECMA-106.DOC - 16.11.95 16,57Private TelecommunicationNetworks (PTN) - SignallingProtocol a
3、t the S Reference Point- Circuit Mode Basic Services(SSIG-BC)Brief historyThis Standard is one of a series of ECMA standards defining services and signalling protocols applicable to PrivateTelecommunication Networks (PTNs). The series uses the ISDN concepts as developed by the ITU-T and is also with
4、in theframework of standards for open systems interconnection as defined by ISO. It has been produced under ITSTC work items M-IT-05 4.3.1.1 and 4.4 for Bon de commande 75D.5.This particular Standard defines the signalling protocol for use at the S reference point in support of basic circuit modeser
5、vices. It is intended to be supported by a suitable layer 2 protocol, for example Standard ECMA-105, in the D-channel of abasic access interface or a primary rate access interface.The 1st Edition of Standard ECMA-106 was published by ECMA in 1985. A 2nd Edition was published by ECMA in June1991, to
6、extend the scope to include the connection of all types of Terminal Equipment to Private TelecommunicationNetworks, instead of just the connection of Data Processing Equipment to Private Circuit-Switching Networks, and to reflectwork undeway in ETSI on the corresponding standard for public ISDNs in
7、Europe.The protocol defined in this 3rd Edition of Standard ECMA-106 is based upon that now specified in ETS 300 102-1. ETS 300102-1 is applicable to interfaces to public ISDNs at the T reference point, or at coincident S and T reference points if there isno NT2 function. This ECMA Standard referenc
8、es many of the clauses of ETS 300 102-1 to avoid reproducing large quantitiesof text. Some of the options in ETS 300 102-1 are not applicable to interfaces at the S reference point, and therefore areexcluded by this Standard. On the other hand, certain additions have been identified as being require
9、d at the S reference point.However, the major part of the protocol is identical with that specified in ETS 300 102-1, enabling TEs to be designed whichare compatible with both PTNs and public ISDNs and can therefore be connected to either.This ECMA Standard refers to ETS 300 102-2 for the descriptio
10、n of the protocol in SDL form.Compared to the 2nd Edition of Standard ECMA-106, various changes have been made in order to achieve alignment withETS 300 192 (which is based on the 2nd Edition of ECMA-106 but modified during ETSI Public Enquiry and published byETSI in December 1992).Further, this 3rd
11、 Edition of Standard ECMA-106 includes a PICS proforma (annex G), which has itself been forwarded to ETSIas a proposed Amendment to ETS 300 192.This Standard is based upon the practical experience of ECMA member companies and the results of their active andcontinuous participation in the work of ISO
12、/IEC JTC1, ITU-T, ETSI and other international, regional and nationalstandardization bodies. It represents a pragmatic and widely based consensus.Adopted as 3rd Edition of Standard ECMA-106 by the General Assembly of December 1993.- i -Table of contentsPage1 Scope 12 Conformance 13 References 14 Def
13、initions 14.1 Basic call 14.2 Incoming call 14.3 Outgoing call 14.4 User and network 25 Acronyms 26 General principles 26.1 Protocol model 26.2 Services provided to call control 26.3 Services required of the Data Link Layer 36.3.1 Acknowledged information transfer services 36.3.2 Unacknowledged info
14、rmation transfer services 36.4 Protocol control states 36.4.1 States for circuit mode call control 36.4.2 States for layer management 46.5 Message segmentation and reassembly functions 46.5.1 Null (0) 56.5.2 Receiving segmented message (1) 57 General procedures 57.1 Use of the services of Layer 2 57
15、.1.1 Establishment of a Data Link connection 57.1.2 Transfer of data 57.2 Message segmentation procedures 57.3 Handling of protocol error conditions 67.3.1 Addition to requirements of subclause 5.8.6.1 of ETS 300 102-1 67.3.2 Addition to requirements of subclause 5.8.6.2 of ETS 300 102-1 67.3.3 Modi
16、fication to subclause 5.8.7.1, second paragraph, of ETS 300 102-1 67.3.4 Replacement for items a, b and c of subclause 5.8.7.1 of ETS 300 102-1 67.3.5 Addition to requirements of subclause 5.8.7.2 of ETS 300 102-1 67.3.6 Modification to subclause 5.8.7.2, first paragraph, of ETS 300 102-1 67.3.7 Mod
17、ification to subclause 5.8.7.2, second paragraph, of ETS 300 102-1 67.4 Handling of configuration errors 6- ii -7.5 Status and status enquiry procedures 77.5.1 Modifications to subclause 5.8.10 of ETS 300 102-1 77.5.2 Modifications to subclause 5.8.11 of ETS 300 102-1 78 Procedures for circuit mode
18、call control 78.1 Call establishment at the originating interface 78.1.1 Addition to subclause 5.1.1 of ETS 300 102-1 78.1.2 Modification to the “ETSI requirement“ concerning en-bloc sending in subclause 5.1.1 of ETS 300 102-1 78.1.3 Modification to the “ETSI requirement“ concerning the tone option
19、in subclause 5.1.3 of ETS 300 102-1 78.1.4 Clarification of subclause 5.1.5 of ETS 300 102-1 88.1.5 Modification to subclause 5.1.6 of ETS 300 102-1 88.1.6 Modification to the “ETSI requirement“ concerning the sending of the alerting message in subclause 5.1.7 ofETS 300 102-1 88.1.7 Modification to
20、the “ETSI requirement“ concerning the receipt of the alerting message in subclause 5.1.7 ofETS 300 102-1 88.1.8 Addition to subclause 5.1.8 of ETS 300 102-1 88.1.9 Non-applicability of transit network selection 88.2 Call establishment at the destination interface 88.2.1 Addition to subclause 5.2.1 o
21、f ETS 300 102-1 88.2.2 Change to case 4 of subclause 5.2.3.1 of ETS 300 102-1 88.2.3 Change to case b of subclause 5.2.3.2 of ETS 300 102-1 98.2.4 Non-applicability of overlap receiving procedure 98.2.5 Replacement of the first paragraph of 5.2.5.2 of ETS 300 102-1 98.2.6 Modification to the “ETSI r
22、equirement“ concerning progress description value No. 1 98.2.7 Addition to subclause 5.2.8 of ETS 300 102-1 98.3 Call clearing 98.3.1 Replacement of item b of subclause 5.3.2 of ETS 300 102-1 98.3.2 Non-applicability of item c of subclause 5.3.2 of ETS 300 102-1 98.3.3 Modification to subclause 5.3.
23、3 of ETS 300 102-1 98.3.4 Modification to subclause 5.3.4.1 of ETS 300 102-1 98.3.5 Modification to subclause 5.3.4.2 of ETS 300 102-1 98.4 In-band tones and announcements 98.5 Call collisions 98.6 Suspend and resume procedures 108.7 TE-side and PTN-side SDL diagrams 109 Procedures for layer managem
24、ent 109.1 Restart procedures 1010 List of system parameters 1011 Functional definition and content of messages 1011.1 Messages for general procedures 1211.1.1 STATUS 1211.1.2 STATUS EQUIRY 12- iii -11.2 Messages for circuit mode call control 1211.2.1 ALERTING 1211.2.2 CALL PROCEEDING 1211.2.3 CONNEC
25、T 1211.2.4 CONNECT ACKNOWLEDGE 1311.2.5 DISCONNECT 1311.2.6 INFORMATION 1311.2.7 PROGRESS 1311.2.8 RELEASE 1311.2.9 RELEASE COMPLETE 1311.2.10 RESUME 1311.2.11 RESUME ACKNOWLEDGE 1311.2.12 RESUME REJECT 1311.2.13 SETUP 1311.2.14 SETUP ACKNOWLEDGE 1411.2.15 SUSPEND 1411.2.16 SUSPEND ACKNOWLEDGE 1411.
26、2.17 SUSPEND REJECT 1411.3 Messages for layer management 1411.3.1 RESTART 1411.3.2 RESTART ACKNOWLEDGE 1412 General message format and coding of information elements 1412.1 Overview 1412.2 Protocol discriminator 1412.3 Call reference 1412.4 Message type 1412.5 Other information elements (Codeset 0)
27、1512.5.1 Coding rules 1512.5.2 Extensions of codesets 1612.5.3 Locking shift procedure 1612.5.4 Non-locking shift procedure 1712.5.5 Bearer capability 1712.5.6 Call identity 1712.5.7 Call state 1712.5.8 Called party number 1712.5.9 Called party subaddress 1712.5.10 Calling party number 1712.5.11 Cal
28、ling party subaddress 1712.5.12 Cause 1812.5.13 Channel identification 1812.5.14 Connected number 1812.5.15 Connected subaddress 1812.5.16 Date / time 19- iv -12.5.17 Display 1912.5.18 High layer compatibility (Layers 4 - 7) 1912.5.19 Low layer compatibility (Layers 1 - 3) 1912.5.20 Progress indicat
29、or 1912.5.21 Restart indicator 1912.5.22 Segmented message 1912.5.23 Sending complete 2012.6 Information elements of codeset 5 2012.6.1 Party category 20Annex A (informative) Use of progress indicators 21Annex B (informative) Use of cause values 23Annex C (informative) Examples of message sequences
30、25Annex D (informative) Manufacturer-specific information 31Annex E (informative) Bibliography 33Annex F (informative) Terminal interchangeability 35Annex G (normative) Protocol Implementation Conformance Statement (PICS) Proforma 371 ScopeThis Standard defines the Layer 3 protocol for signalling fo
31、r the support of circuit-mode bearer services (used either ontheir own or in support of teleservices) at an interface at the S reference point between a Terminal Equipment (TE) anda Private Telecommunication Network (PTN). The S reference point is defined in ENV 41004.This Standard is based upon ETS
32、 300 102-1, which defines the equivalent protocol for the T and coincident T and Sreference points between a user and a public ISDN. Many of the clauses of ETS 300 102-1 are incorporated byreference. Any reference in the text of ETS 300 102-1 to annex D of that document are not applicable to this St
33、andard.Annex F contains information on terminal interchangeability between PTNs and public ISDNs.This Standard is applicable to basic and primary rate accesses of PTNXs and to TEs that are intended for connection tosuch accesses.The conveyance of non-standardized (e.g. manufacturer-specific) informa
34、tion in messages is outside the scope of thisStandard. Annex D discusses ways in which this can be achieved.2 ConformanceIn order to conform to this Standard, a PTNX shall satisfy the PTN requirements and a TE shall satisfy the TErequirements identified in the Protocol Implementation Conformance Sta
35、tement (PICS) Proforma in annex G.3 ReferencesECMA-105 Private Telecommunication Networks (PTN) - Signalling at the S Reference Point - Data LinkLayer Protocol (SSIG-L2) (1993)ECMA-155 Addressing in Private Telecommunication Networks (1991)ETS 300 102-1 Integrated Services Digital Network (ISDN); Us
36、er-network interface layer 3; Specifications forbasic call control (1990)ETS 300 171 Private Telecommunication Network (PTN); Specification, functional models and informationflows; Control aspects of circuit-mode basic services (1992)ETS 300 189 Private Telecommunication Network (PTN); Addressing (1
37、992)ENV 41004 Reference configurations for calls through exchanges of private telecommunication networks(1989)ENV 41005 Method for the specification of basic and supplementary services of private telecommunicationnetworks (1990)ENV 41007 Definition of terms in private telecommunication networks (198
38、9)CCITT Rec. I.112 Vocabulary of terms for ISDNs (1988)4 DefinitionsFor the purpose of this Standard, the terminology defined in ENV 41007 and CCITT Rec. I.112 applies. If there isconflict, the definitions in ENV 41007 shall take precedence. In addition the following definitions apply.4.1 Basic call
39、A single invocation of a basic service according to ETS 300 171.4.2 Incoming callA call presented to the TE by the PTN.4.3 Outgoing callA call presented to the PTN by the TE.- 2 -4.4 User and networkThroughout this Standard, reference is made to clauses in ETS 300 102-1. When applying a clause in ET
40、S 300 102-1 to the TE-PTN interface, the term “user“ shall be interpreted as “TE“, and the term “network“ shall be interpretedas “PTN“.5 AcronymsCLIP Calling Line Identification PresentationCOLP Connected Line Identification PresentationISDN Integrated Services Digital NetworkMSI Manufacturer-Specif
41、ic InformationPICS Protocol Implementation Conformance StatementPTN Private Telecommunication NetworkPTNX Private Telecommunication Network eXchangeSAP Service Access PointTE Terminal Equipment6 General principlesThis Standard specifies the signalling procedures for establishing, maintaining and cle
42、aring a basic circuit-switchedcall at a PTN user access. These signalling procedures are defined in terms of messages exchanged over a data linkconnection on the D-channel of a basic or primary rate interface structure. The result of successful basic callestablishment is a connection for the purpose
43、 of user information transfer. This connection uses a B-channel of a basicor primary rate interface structure.Throughout this Standard, the term “B-channel“ is used to indicate any channel other than the D-channel.The basic call signalling procedures specified in this Standard apply to circuit mode
44、bearer services, used either ontheir own or in support of teleservices.In addition, this Standard includes signalling procedures for layer management, including restart.6.1 Protocol modelFigure 1 shows the relationship, within the Control Plane, between the layer 3 protocol at the S reference point,
45、 theprotocol entities in the TE and PTN, and the adjacent layers.The Protocol Control entity provides services to Call Control. Call Control corresponds to the functional entitiesidentified for the basic call at Stage 2 (see ETS 300 171), i.e. the Call Control functional entity within the PTN(PTNX)
46、and the Call Control Agent functional entity within the TE. Primitives exchanged across the boundarybetween Call Control and Protocol Control correspond to the information flows exchanged between the Call Controland Call Control Agent functional entities, as identified at Stage 2. Protocol Control p
47、rovides the mapping betweenthese primitives and the messages transferred across the TE-PTN interface.In order to transfer messages, Protocol Control uses the services of the Data Link Layer, as available at the DataLink Layer Service Access Point (SAP). The Data Link Layer in turn uses the services
48、of the Physical Layer.6.2 Services provided to call controlProtocol Control provides services to Call Control whereby Call Control can send information flows to and receiveinformation flows from the peer Call Control. A primitive from Call Control to Protocol Control of type “request“ or“response“ n
49、ormally results in the associated information flow being presented to the peer Call Control as aprimitive of type “indication“ or “confirmation“ respectively.PTN side primitives are as listed in subclause 5.3 of ETS 300 102-2. TE side primitives are as listed in subclause6.3 of ETS 300 102-2.NOTE 1These primitive names differ from the information flow names specified at Stage 2 in ETS 300 171.- 3 -.G45G43G4dG41G2dG39G34G2dG30G30G34G33G2dG41TECALLCONTROLPROTOCOLCONTROLLAYER 2LAYER 1CALLCONTROLPROTOCOLCONTROLLAYER 2LAYER 1PTNINTERFACETE-PTNLAYER 3PROTOCOLLAYER 2 SERVICEACCESS P
