1、m 3404583 O028943 4 m c-3 EUROPEAN ETS 300 062 TELECOMMUNICATION STANDARD October 1991 UDC: 621.395 Key words: ISDN, supplementary service. Integrated Services Digital Network (ISDN); Direct Dialling In (DDI) supplementary service Service Description ETSI European Telecommunications Standards Instit
2、ute ETSI Secretariat: B.P.152 . F - 06561 Valbonne Cedex . France TP. + 33 92 94 42 O0 TF. + 33 93 65 47 16 Tx. 47 O0 40 F European Telecommunications Standards Institute 1 991. All rights reserved. No part may be reproduced or used except as authorised by contract or other written permission. The c
3、opyright and the foregoing restriction on reproduction and use extend to all media in which the information may be embodied. 3404583 0028944 b H Page 2 ETS 300 062:1991 whilst every care has been taken in the preparation and publication of this document, errors in content, typographical or otherwise
4、, may occur. If you have comments concerning its accuracy, please write to “ETSI Standards Management Dept.“ at the address shown on the title page. Page 3 ETS 300 062:1991 Contents Foreword . 5 1 2 3 4 5 6 7 8 Scope . 7 Normative references 7 Definitions 8 Symbols and abbreviations . 8 Description
5、8 Procedures 8 Provision and withdrawal 8 6.2.2 Erasure 9 6.1 6.2 . Normal procedur es 9 6.2.1 Activation. deactivation and registration . 9 6.2.3 Invocation and operation . 9 6.2.4 Interrogation . 9 Exceptional procedures . . 9 6.3.1 Activation. deactivation and registration . 9 6.3.2 Erasure 9 6.3
6、.3 Invocation and operation . 9 6.3.4 Interrogation . 9 6.3 Intercommunication considerations 9 Interworking with non-ISDNs 9 Interworking with private ISDNs . 9 Interaction with other supplementary services . 10 7.1 7.2 8.1 Advice of charge services . 10 Charging information at call Set-up time 10
7、Charging information during the call 10 8.1.1 8.1.2 8.1.3 Charging information at the end of the call . 10 8.2 Call waiting 10 8.3 Call hold 10 8.4 Call transfer services . 10 Explicit call transfer . 10 Number identification services . 10 Calling line identification restriction 11 Connected line id
8、entification presentation . 11 Connected line identification restriction . 11 Closed user group . 11 Completion of calls to busy subscriber 11 Conference services ; . 11 Conference call. add-on 11 Meet me conference 11 Direct dialling in 11 8.4.1 8.4.2 8.5.1 8.5.2 8.5.3 8.5.4 Single step call transf
9、er . . 10 Calling line identification presentation 10 8.5 8.6 8.7 8.8 8.8.1 8.8.2 8.9 3404583 0028746 T Page 4 ETS 300 062:1991 8.10 8.1 1 8.12 8.13 8.14 8.15 8.16 Diversion services 12 8.10.1 Call forwarding unconditional . 12 8.10.2 Call forwarding busy 12 8.10.3 Call forwarding no reply 12 8.10.4
10、 Call deflection 12 Freephone . 12 Malicious call identification 12 Multiple subscriber number 12 Subaddreccina 12 . Terminal portability . 13 Three party 13 8.17 User-user signalling 13 3404583 0028947 L Page 5 ETS 300 062:1991 Foreword This European Telecommunication Standard (ETS) has been produc
11、ed by the Network Aspects (NA) Technical Committee of the European Telecommunications Standards Institute (ETSI). In accordance with CCTTT Recommendation 1.130 Illl the following three level structure is used to describe the supplementary telecommunications services as provided by European public te
12、lecommunications operators under the pan-European Integrated Services Digital Network (ISDN): - Stage 1: is an overall service description, from the users standpoint; - Stage 2: identifies the functional capabilities and information flows needed to support the service described in stage 1; and - Sta
13、ge 3: defines the signalling system protocols and switching functions needed to implement the service described in stage 1. This ETC details the stage 1 aspects (overall service description) for the Direct Dialling In (DDI) supplementary service. The stage 2 and stage 3 aspects are detailed in ETS 3
14、00 063 (1991) and FTS 300 064 (1991) respectively. m 3404583 0028948 3 m Page 7 ETS 300 062:1991 1 Scope This standard defines the stage one of the Direct Dialling In (DDI) supplementary service for the pan-European Integrated Services Digital Network (ISDN) as provided by European public telecommun
15、ications operators. Stage one is an overall service description from the users point of view (see CCRT Recommendation 1.130 l), but does not deal with the details of the human interface itself. This standard defines the interworking requirements of private ISDNs with the public ISDN. In addition thi
16、s standard specifies the base functionality where the service is provided to the user via a private ISDN. This standard does not specify the additional requirements where the service is provided to the user via a telecommunications network that is not an ISDN but does include interworking requiremen
17、ts of other networks with the public ISDN. Interactions with supplementary services not listed in Clause 8 are outside the scope of this standard. Charging principles are outside the scope of this standard. The DDI supplementary service enables a user to call directly via a public ISDN a user on a p
18、rivate ISDN by using the public ISDN numbering plan. The DDI supplementary service is applicable to all telecommunication services. This standard is applicable to the stage two and stage three standards for the ISDN DDI supplementary service. The terms “stage two“ and “stage three“ are also defined
19、in CCTTT Recommendation 1.130 l. Where the text indicates the status of a requirement (.e. as strict command or prohibition, as authorisation leaving freedom), as a capability or possibility, this shall be reflected in the text of the relevant stage two and stage three standards. Furthermore, confor
20、mance to this standard is met by conforming to the stage three standards with the field of application appropriate to the equipment being implemented. Therefore no method of testing is provided for this standard. 2 Normative references This standard incorporates by dated or undated reference, provis
21、ions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to, or revisions of any of these publications apply to this standard only when incorporated in it by amendme
22、nt or revision. For undated references the latest edition of the publication referred to applies. CCRT Recommendation 1.1 30 (1988), “Method for the characterisation of telecommunication services supported by an ISDN and network capabilities of an ISDNII. I21 CCTT Recommendation 1.1 12 (1988), “Voca
23、bulary of terms for ISDNsI. 131 141 151 CCRT Recommendation E.164 (1988). “Numbering plan for the ISDN era“. CCRT Recommendation 1.210 (1988), “Principles of telecommunication services supported by an ISDN and the means to describe them“. CCRT Recommendation Q.9 (1 988): “Vocabulary of switching and
24、 signalling terms“. 3404583 0028947 5 Page 8 ETS 300 062:1991 3 Definitions For the purposes of this standard, the following definitions apply: Integrated Services Digital Network (ISDN): see CCTT Recommendation 1.112 (21, Q 2.3, definition 308. Servico; telecommunications service: see CClT Recommen
25、dation 1.1 12 2, 5 2.2, definition 201. Supplementary service: see CClT Recommendation 1.210 (41, 5 2.4. ISBN number: A number conforming to the numbering plan and structure specified in CCITT Recommendation E.164 3. Basic Call (procedures): the procedures by which a call (as an instance of a basic
26、telecommunications service) is established and terminated. Bask access: Primary rate access: see CCHT Recommendation (2.9 171, 5 1, definition 1551. see CCHT Recommendation Q.9 7, 5 i, definition 1552, 4 Symbols and abbreviations DDI Direct Dialling In ISDN Integrated Services Digital Network PSTN P
27、ublic Switched Telephone Network 5 Description The DDI supplementary service shall apply to the basic access and th primary rate access. The DDI supplementary service enables a user to call directly via a public ISDN a user on a private ISDN by use of the public ISDN numbering plan (31. The network
28、shall send all or part of the ISDN number. If part of the ISDN number is sent, it shall be the last part of the ISDN number, .e. if one digit is sent, it shall be the last digit of the ISDN number, if n digits are sent, this shall be the last n digits of the ISDN number. This information shall be us
29、ed by the private ISDN, in order to progr&the call to the destination. In the case where the part of the ISDN number is sent by the network, this part is either a fixed number of digits applying for all subscribers or, as a network option, a number of digits defined on a per subscriber basis. NOTE:
30、DDI shall apply to public ISDNs having either a closed or an open numbering plan. 6 Procedures 6.1 Provision and withdrawal The DDI supplementary service shall be provided or withdrawn after prior arrangement with the service provider. The service provider shall allocate a set of ISDN numbers. Page
31、9 ETS 300 062:1991 6.2 Normal procedures 6.2.1 Activation, deactlvatlon and registration Not applicable. 6.2.2 Erasuro Not applicable. 6.2.3 Invocation and operation Call initiation procedures shall be the same as for basic services. The calling and called users shall perceive the same completion pr
32、ocedures as for the basic service. Upon call acceptance, the calling user shall be connected to the called user designated by the ISDN number. 6.2.4 interrogation Not applicable. 6.3 Exceptional procedures 6.3.1 Activation, deactivatlon and registration Not applicable. 6.3.2 Erasure Not applicable.
33、6.3.3 Invocation and oparatlon If the called user is busy or does not answer, the procedures for basic calls shall apply. If a call is offered with incomplete address information, the cai1 shall be released by time supervision within the public network. NOTE: A corresponding time supervision within
34、the private ISDN is advisable. 6.3.4 Interrogatlon Not applicable. 7 Intercommunication considerations 7.1 Interworking with non-ISDNs As for the basic call. 7.2 Interworking with private ISDNs This standard describes the mechanism which enables a user on a public ISDN to call directly a user on a p
35、rivate ISDN. There are no additional considerations for the DDI supplementary service when interworking with private ISDNs. NOTE: If the public network does not know what equipment is connected to the access, the DDI supplementary service can apply. 3404583 0028953 3 Pago 10 ETS 300 062:1991 8 Inter
36、action with other supplementary services In the case of the interaction with other supplementary services, these supplementary services shall be applicable to the whole access, unless explicitly stated otherwise, 8.1 Advico of charge services 8.1.1 Charging Informatlon at call Set-up tlme No impact,
37、 .e. neither supplementary service shall affect the operation of the other supplementary service. 8.1.2 No impact, .e. neither supplementary service shall affect the operation of the other Supplementary service. Charging information during the call 8.1.3 Charging information at the end of the call N
38、o impact, .e. neither supplementary service shall affect the operation of the other supplementary service. 8.2 Call waiting No impact, .e. neither supplementary service shall affect the operation of the other supplementary service. 8.3 Call hold No impact, he. neither supplementary service shall aff
39、ect the operation of the other supplementary service. 8.4 Cali transfer servlces 8.4.1 Expllcit call ransfet No impact, .e. neither supplementary service shall affect the operation of the other supplementary service. 8.4.2 Single step call transfer No impact, .e. neither supplementary service shall
40、affect the operation of the other supplementary service. 8.5 Number identification services 8.5.1 Calling line ldentlfication presentation No impact, .e. neither supplementary service shall affect the operation of the other supplementary service. NOTE: At the calling partys user-network interface, t
41、he network may be supplied with a calling party number as a result of the DDI supplementary service applying either: at that interface, in which case a partial or full calling party number may be supplied and may be subject to screening by the ISDN, or W 3404583 O028952 5 Page 11 ETS 300 062:1991 -
42、at that interface or at another interface to which the same private ISDN is attached, in which case a full (international or national) ISDN number may be supplied, subject to the existence of a special arrangement for not screening. 8.5.2 Calling line identification restriction No impact, .e. neithe
43、r supple.mentary service shall affect the operation of the other supplementary service. 8.5.3 Connected line identification presentation No impact, .e. neither supplementary. service shall affect the operation of the other supplementaq service. NOTE: At the called partys user-network interface, the
44、network may be supplied with a connected party number as a result of the DDI supplementafy service applying either: - at that interface, in which case a partial or full connected party number may be supplied and may be subject to screening by the ISDN, or - at that interface or at another interface
45、to which the same private ISDN is attached, in which case a full (international or national) ISDN number may be supplied, subject to the existence of a special arrangement for not screening. 8.5.4 Connected line identiflcation restriction No impact, .e. neither supplementary service shall affect the
46、 operation of the other supplementary service. 8.6 Closed user group Closed user group membership shall not be available on a per ISDN number basis, but instead shall be on the basis of the entire range of ISDN numbers applicable at an access or group of accesses. 8.7 Completion of calls to busy sub
47、scriber No impact, .e. neither supplementary service shall affect the operation of the other supplementary service. 8.8 Conference services 8.8.1 Conference call, add-on No impact, .e. neither supplementary service shall affect the operation of the other supplementary service. 8.8.2 Meet me conferen
48、ce No impact, .e. neither supplementary service shall affect the operation of the other supplementary service. 8.9 Direct dialling in Not applicable. W 3404583 0028953 i M Page 12 ETS 300 062:1991 8.10 Diversion services 8.10.1 Call forwarding uncondltlonal No impact, .e. neither supplementary servi
49、ce shall affect the operation of the other supplementary service. 8.10.2 Cali forwarding busy No impact, .e. neither supplementary service shall affect the operation of the other supplementary service. 8.10.3 Call forwarding no reply No impact, .e. neither supplementary service shall affect the operation of the other supplementary service. 8.10.4 Cali deflection No impact, .e. neither supplementary service shall affect the operation of the other supplementary service. 8.11 Freephone No impact, .e. neither supplementary service shall a
